{"transactions":[{"id":1780174,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":7,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":8,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-09-15T19:00:16.000Z","date":"2023-09-13","kind":"other","planned":false,"acquired":false,"shares":70813,"ownership":{"direct":false,"nature":"By Flagship Pioneering Fund VI General Partner LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F7","text":"On September 13, 2023, Flagship Pioneering Fund VI, L.P. 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Flagship Fund VI GP, in turn, distributed in-kind to its members, pro rata and without consideration, the 70,813 shares it received from Flagship Fund VI. The aforementioned distributions were made in accordance with the exemptions afforded by Rule 16a-13 and Rule 16a-9 of the Securities Exchange Act of 1934, as amended."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Represents shares held directly by Flagship Fund VI GP. 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Flagship Fund VI GP, in turn, distributed in-kind to its members, pro rata and without consideration, the 70,813 shares it received from Flagship Fund VI. The aforementioned distributions were made in accordance with the exemptions afforded by Rule 16a-13 and Rule 16a-9 of the Securities Exchange Act of 1934, as amended."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F8","text":"Represents shares held directly by Flagship Fund VI. Flagship Fund VI GP is the general partner of Flagship Fund VI. Flagship Pioneering is the manager of Flagship Fund VI GP. Each of the reporting persons except Flagship Fund VI disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any."}],"balance_after":7293841,"source":{"system":"sec-edgar","filing":"0000899243-23-019165","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924323019165/doc4.xml","form_type":"4"}},{"id":1780172,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":7,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":8,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-09-15T19:00:16.000Z","date":"2023-09-13","kind":"other","planned":false,"acquired":false,"shares":1181745,"ownership":{"direct":false,"nature":"By Flagship Ventures Fund V General Partner LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"On September 13, 2023, Flagship Ventures Fund V, L.P. 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Each of the reporting persons except Flagship Fund V GP disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-23-019165","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924323019165/doc4.xml","form_type":"4"}},{"id":1780171,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":7,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":8,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-09-15T19:00:16.000Z","date":"2023-09-13","kind":"other","planned":false,"acquired":false,"shares":345069,"ownership":{"direct":false,"nature":"By Flagship V VentureLabs Rx Fund, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"On September 13, 2023, Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") and Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\") distributed in-kind to their respective limited partners and sole general partner, Flagship Ventures Fund V General Partner, LLC (\"Flagship Fund V GP\"), pro rata and without consideration, 4,926,378 shares and 345,069 shares, respectively, of the Issuer's common stock. Flagship Fund V GP, in turn, distributed in-kind to its members, pro rata and without consideration, the aggregate of 1,181,745 shares it received from Flagship Fund V and Flagship Fund V Rx. The aforementioned distributions were made in accordance with the exemptions afforded by Rule 16a-13 and Rule 16a-9 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"On September 13, 2023, Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") and Flagship V VentureLabs Rx Fund, L.P. 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Each of the reporting persons except Flagship Fund V Rx disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any."}],"balance_after":1035208,"source":{"system":"sec-edgar","filing":"0000899243-23-019165","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924323019165/doc4.xml","form_type":"4"}},{"id":1780170,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":7,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":8,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-09-15T19:00:16.000Z","date":"2023-09-13","kind":"other","planned":false,"acquired":false,"shares":4926378,"ownership":{"direct":false,"nature":"By Flagship Ventures Fund V, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"On September 13, 2023, Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") and Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\") distributed in-kind to their respective limited partners and sole general partner, Flagship Ventures Fund V General Partner, LLC (\"Flagship Fund V GP\"), pro rata and without consideration, 4,926,378 shares and 345,069 shares, respectively, of the Issuer's common stock. Flagship Fund V GP, in turn, distributed in-kind to its members, pro rata and without consideration, the aggregate of 1,181,745 shares it received from Flagship Fund V and Flagship Fund V Rx. The aforementioned distributions were made in accordance with the exemptions afforded by Rule 16a-13 and Rule 16a-9 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"On September 13, 2023, Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") and Flagship V VentureLabs Rx Fund, L.P. 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Dr. Afeyan is the sole manager of Flagship V GP. Each of the reporting persons except Flagship Fund V disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held directly by Flagship Fund V. Includes 2,240,555 shares received in the distribution-in-kind from VentureLabs V described in footnote (1) above. Flagship V GP is the general partner of Flagship Fund V. Dr. Afeyan is the sole manager of Flagship V GP. Each of the reporting persons except Flagship Fund V disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any."}],"balance_after":8057470,"source":{"system":"sec-edgar","filing":"0000899243-23-019165","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924323019165/doc4.xml","form_type":"4"}},{"id":1780169,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":7,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":8,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-09-15T19:00:16.000Z","date":"2023-09-13","kind":"other","planned":false,"acquired":false,"shares":2825989,"ownership":{"direct":false,"nature":"By Flagship VentureLabs V, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On September 13, 2023, Flagship VentureLabs V LLC (\"VentureLabs V\") distributed in-kind to its members, pro rata and without consideration, 2,825,989 shares of the Issuer's common stock. The aforementioned distribution was made in accordance with the exemptions afforded by Rule 16a-13 and Rule 16a-9 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 13, 2023, Flagship VentureLabs V LLC (\"VentureLabs V\") distributed in-kind to its members, pro rata and without consideration, 2,825,989 shares of the Issuer's common stock. The aforementioned distribution was made in accordance with the exemptions afforded by Rule 16a-13 and Rule 16a-9 of the Securities Exchange Act of 1934, as amended."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held directly by VentureLabs V. Flagship VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. Dr. Afeyan is the CEO and sole stockholder of Flagship Pioneering. 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These shares were sold in multiple transactions at prices ranging from $6.20 to $6.36, inclusive. The reporting persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held directly by Flagship Ventures Fund V, L.P. (\"Flagship Fund V\"). Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\") is the general partner of Flagship Fund V. Noubar B. Afeyan, Ph.D. is the sole manager of Flagship V GP. 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These shares were sold in multiple transactions at prices ranging from $6.30 to $6.56, inclusive. The reporting persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held directly by Flagship Ventures Fund V, L.P. (\"Flagship Fund V\"). Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\") is the general partner of Flagship Fund V. Noubar B. Afeyan, Ph.D. is the sole manager of Flagship V GP. Each of the reporting persons except Flagship Fund V disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any."}],"balance_after":11174664,"source":{"system":"sec-edgar","filing":"0000899243-23-013992","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924323013992/doc4.xml","form_type":"4"}},{"id":1876643,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":2,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":4,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-05-26T20:00:11.000Z","date":"2023-05-24","kind":"sale","planned":false,"acquired":false,"shares":39580,"price":6.5652,"value":259850.616,"ownership":{"direct":false,"nature":"By Flagship V VentureLabs Rx Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.50 to $6.99, inclusive. The reporting persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held directly by Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\"). Flagship V GP is the general partner of Flagship Fund V Rx. Each of the reporting persons except Flagship Fund V Rx disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any."}],"balance_after":1447791,"source":{"system":"sec-edgar","filing":"0000899243-23-013992","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924323013992/doc4.xml","form_type":"4"}},{"id":1876642,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":2,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":4,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-05-26T20:00:11.000Z","date":"2023-05-24","kind":"sale","planned":false,"acquired":false,"shares":308290,"price":6.5652,"value":2023985.508,"ownership":{"direct":false,"nature":"By Flagship Ventures Fund V, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.50 to $6.99, inclusive. The reporting persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held directly by Flagship Ventures Fund V, L.P. (\"Flagship Fund V\"). Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\") is the general partner of Flagship Fund V. Noubar B. Afeyan, Ph.D. is the sole manager of Flagship V GP. Each of the reporting persons except Flagship Fund V disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any."}],"balance_after":11276909,"source":{"system":"sec-edgar","filing":"0000899243-23-013992","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924323013992/doc4.xml","form_type":"4"}},{"id":2157413,"issuer":{"id":114958,"kind":"organization","name":"Codiak BioSciences, Inc.","symbol":"CDAK"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":2,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":4,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrants to purchase Common Stock","published_at":"2022-09-16T19:30:18.000Z","date":"2022-09-15","kind":"purchase","acquired":true,"shares":210743,"ownership":{"direct":false,"nature":"By Flagship V VentureLabs Rx Fund, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On September 15, 2022, pursuant to an underwritten public offering by the Issuer (the \"Offering\"), Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") acquired 722,590 shares of Common Stock and accompanying warrants to purchase 722,590 shares of Common Stock, and Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\") acquired 210,743 shares of Common Stock and accompanying warrants to purchase 210,743 shares of Common Stock. The combined purchase price in the Offering was $1.50 per share of Common Stock and accompanying warrant."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 15, 2022, pursuant to an underwritten public offering by the Issuer (the \"Offering\"), Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") acquired 722,590 shares of Common Stock and accompanying warrants to purchase 722,590 shares of Common Stock, and Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\") acquired 210,743 shares of Common Stock and accompanying warrants to purchase 210,743 shares of Common Stock. The combined purchase price in the Offering was $1.50 per share of Common Stock and accompanying warrant."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares held by Flagship Fund V Rx. Flagship V GP is the general partner of Flagship Fund V Rx. Noubar B. Afeyan, Ph.D. is the sole manager of Flagship V GP. Each of the reporting persons except for Flagship Fund V Rx disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":210743,"derivative":{"exercise_price":1.875,"exercise_date":"2022-09-15","expiration_date":"2027-09-15","underlying":"Common Stock","underlying_shares":210743},"source":{"system":"sec-edgar","filing":"0000899243-22-031404","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924322031404/doc4.xml","form_type":"4"}},{"id":2157412,"issuer":{"id":114958,"kind":"organization","name":"Codiak BioSciences, Inc.","symbol":"CDAK"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":2,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":4,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrants to purchase Common Stock","published_at":"2022-09-16T19:30:18.000Z","date":"2022-09-15","kind":"purchase","acquired":true,"shares":722590,"ownership":{"direct":false,"nature":"By Flagship Ventures Fund V, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On September 15, 2022, pursuant to an underwritten public offering by the Issuer (the \"Offering\"), Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") acquired 722,590 shares of Common Stock and accompanying warrants to purchase 722,590 shares of Common Stock, and Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\") acquired 210,743 shares of Common Stock and accompanying warrants to purchase 210,743 shares of Common Stock. The combined purchase price in the Offering was $1.50 per share of Common Stock and accompanying warrant."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 15, 2022, pursuant to an underwritten public offering by the Issuer (the \"Offering\"), Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") acquired 722,590 shares of Common Stock and accompanying warrants to purchase 722,590 shares of Common Stock, and Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\") acquired 210,743 shares of Common Stock and accompanying warrants to purchase 210,743 shares of Common Stock. The combined purchase price in the Offering was $1.50 per share of Common Stock and accompanying warrant."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares held by Flagship Fund V. Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\") is the general partner of Flagship Fund V. Noubar B. Afeyan, Ph.D. is the sole manager of Flagship V GP. Each of the reporting persons except for Flagship Fund V disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":722590,"derivative":{"exercise_price":1.875,"exercise_date":"2022-09-15","expiration_date":"2027-09-15","underlying":"Common Stock","underlying_shares":722590},"source":{"system":"sec-edgar","filing":"0000899243-22-031404","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924322031404/doc4.xml","form_type":"4"}},{"id":2157411,"issuer":{"id":114958,"kind":"organization","name":"Codiak BioSciences, Inc.","symbol":"CDAK"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":2,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":4,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-09-16T19:30:18.000Z","date":"2022-09-15","kind":"purchase","acquired":true,"shares":210743,"ownership":{"direct":false,"nature":"By Flagship V VentureLabs Rx Fund, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On September 15, 2022, pursuant to an underwritten public offering by the Issuer (the \"Offering\"), Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") acquired 722,590 shares of Common Stock and accompanying warrants to purchase 722,590 shares of Common Stock, and Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\") acquired 210,743 shares of Common Stock and accompanying warrants to purchase 210,743 shares of Common Stock. The combined purchase price in the Offering was $1.50 per share of Common Stock and accompanying warrant."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 15, 2022, pursuant to an underwritten public offering by the Issuer (the \"Offering\"), Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") acquired 722,590 shares of Common Stock and accompanying warrants to purchase 722,590 shares of Common Stock, and Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\") acquired 210,743 shares of Common Stock and accompanying warrants to purchase 210,743 shares of Common Stock. The combined purchase price in the Offering was $1.50 per share of Common Stock and accompanying warrant."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares held by Flagship Fund V Rx. Flagship V GP is the general partner of Flagship Fund V Rx. Noubar B. Afeyan, Ph.D. is the sole manager of Flagship V GP. Each of the reporting persons except for Flagship Fund V Rx disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":1188920,"source":{"system":"sec-edgar","filing":"0000899243-22-031404","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924322031404/doc4.xml","form_type":"4"}},{"id":2157410,"issuer":{"id":114958,"kind":"organization","name":"Codiak BioSciences, Inc.","symbol":"CDAK"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":2,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":4,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-09-16T19:30:18.000Z","date":"2022-09-15","kind":"purchase","acquired":true,"shares":722590,"ownership":{"direct":false,"nature":"By Flagship Ventures Fund V, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On September 15, 2022, pursuant to an underwritten public offering by the Issuer (the \"Offering\"), Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") acquired 722,590 shares of Common Stock and accompanying warrants to purchase 722,590 shares of Common Stock, and Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\") acquired 210,743 shares of Common Stock and accompanying warrants to purchase 210,743 shares of Common Stock. The combined purchase price in the Offering was $1.50 per share of Common Stock and accompanying warrant."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 15, 2022, pursuant to an underwritten public offering by the Issuer (the \"Offering\"), Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") acquired 722,590 shares of Common Stock and accompanying warrants to purchase 722,590 shares of Common Stock, and Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\") acquired 210,743 shares of Common Stock and accompanying warrants to purchase 210,743 shares of Common Stock. The combined purchase price in the Offering was $1.50 per share of Common Stock and accompanying warrant."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares held by Flagship Fund V. Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\") is the general partner of Flagship Fund V. Noubar B. Afeyan, Ph.D. is the sole manager of Flagship V GP. Each of the reporting persons except for Flagship Fund V disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":1865767,"source":{"system":"sec-edgar","filing":"0000899243-22-031404","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924322031404/doc4.xml","form_type":"4"}},{"id":2613203,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":1666666,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"Represents shares held directly by FPN, L.P. (\"FPN Fund\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":441176},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":21,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613202,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":5000000,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Represents shares held directly by Flagship Pioneering Special Opportunities Fund II, L.P. (\"Flagship Opportunities Fund II\")"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1323530},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613201,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":1666667,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held directly by Flagship Pioneering Fund VI, L.P. (\"Flagship Pioneering VI\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":441176},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613200,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":3333333,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"Represents shares held directly by FPN, L.P. (\"FPN Fund\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":882353},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613199,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":13333333,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Represents shares held directly by Flagship Pioneering Special Opportunities Fund II, L.P. (\"Flagship Opportunities Fund II\")"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":3529413},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613198,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":666667,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares held directly by Nutritional Health LTP Fund, L.P. (\"Nutritional LTP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":176470},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613197,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":2666667,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held directly by Flagship Pioneering Fund VI, L.P. (\"Flagship Pioneering VI\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":705882},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613196,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":3000000,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares held directly by Nutritional Health LTP Fund, L.P. (\"Nutritional LTP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":794118},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613195,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":27388000,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held directly by Flagship Pioneering Fund VI, L.P. (\"Flagship Pioneering VI\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":7249767},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613194,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":22275232,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held directly by Flagship Ventures Fund V, L.P. (\"Flagship Fund V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":5896386},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613193,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Convertible Preferred Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":false,"shares":4112000,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held directly by Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1088470},"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613192,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"purchase","acquired":true,"shares":294117,"price":17,"value":4999989.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"Represents shares held directly by FPN, L.P. (\"FPN Fund\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":1617646,"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613191,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":true,"shares":1323529,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"Represents shares held directly by FPN, L.P. (\"FPN Fund\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":1323529,"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613190,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"purchase","acquired":true,"shares":661764,"price":17,"value":11249988.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Represents shares held directly by Flagship Pioneering Special Opportunities Fund II, L.P. (\"Flagship Opportunities Fund II\")"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":5514707,"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613189,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":true,"shares":4852943,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Represents shares held directly by Flagship Pioneering Special Opportunities Fund II, L.P. (\"Flagship Opportunities Fund II\")"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":4852943,"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613188,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":true,"shares":970588,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares held directly by Nutritional Health LTP Fund, L.P. (\"Nutritional LTP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":970588,"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613187,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"purchase","acquired":true,"shares":220588,"price":17,"value":3749996.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held directly by Flagship Pioneering Fund VI, L.P. (\"Flagship Pioneering VI\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":8617413,"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613186,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":true,"shares":8396825,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held directly by Flagship Pioneering Fund VI, L.P. (\"Flagship Pioneering VI\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":8396825,"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613185,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":true,"shares":5896386,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held directly by Flagship Ventures Fund V, L.P. (\"Flagship Fund V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":5896386,"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2613184,"issuer":{"id":83618,"kind":"organization","name":"Omega Therapeutics, Inc.","symbol":"OMGA"},"owners":[{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":1,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":2,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":4,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":5,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":6,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-08-05T17:43:53.000Z","date":"2021-08-03","kind":"exercise","acquired":true,"shares":1088470,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706.  The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held directly by Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F9","text":"Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC (\"Flagship Opportunities Fund II GP\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"(continued from above) The general partner of FPN Fund is FPN General Partner LLC (\"FPN GP\"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC (\"Nutritional LTP GP\" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F11","text":"(continued from above)  Noubar B. Afeyan, Ph.D. (\"Dr. Afeyan\") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Reporting Persons, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":1088470,"source":{"system":"sec-edgar","filing":"0000899243-21-031797","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1850838/000089924321031797/doc4.xml","form_type":"4"}},{"id":2869334,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":2,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":4,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":5,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":6,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":7,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":8,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-2 Convertible Preferred Stock","published_at":"2021-02-10T18:59:46.000Z","date":"2021-02-08","kind":"exercise","acquired":false,"shares":11585199,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's Preferred Stock automatically convert into shares of Issuer's Common Stock, for no additional consideration, on a 1-for-1 basis immediately prior to the consummation of Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's Preferred Stock automatically convert into shares of Issuer's Common Stock, for no additional consideration, on a 1-for-1 basis immediately prior to the consummation of Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"The expiration date is not relevant to the conversion of these securities."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares held directly by Flagship Ventures Fund V, L.P. (\"Flagship Fund V\" and together with Flagship Fund V Rx, Flagship Pioneering VI, and VentureLabs V, the \"Flagship Pioneering Funds\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The manager of Flagship Pioneering VI GP is Flagship Pioneering. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\" and, together with VentureLabs V Manager, Flagship Pioneering, and Flagship Pioneering VI GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"(continued from footnote 6) Noubar B. Afeyan, Ph.D. is the sole Director of Flagship Pioneering and may be deemed to have sole voting and investment control over all the shares held by VentureLabs V and Flagship Fund VI. In addition, Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP and may be deemed to possess sole voting and investment control over all the shares held by Flagship Fund V and Flagship Fund V Rx. None of the Flagship General Partners nor Noubar B. 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(\"VentureLabs V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The manager of Flagship Pioneering VI GP is Flagship Pioneering. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\" and, together with VentureLabs V Manager, Flagship Pioneering, and Flagship Pioneering VI GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"(continued from footnote 6) Noubar B. Afeyan, Ph.D. is the sole Director of Flagship Pioneering and may be deemed to have sole voting and investment control over all the shares held by VentureLabs V and Flagship Fund VI. In addition, Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP and may be deemed to possess sole voting and investment control over all the shares held by Flagship Fund V and Flagship Fund V Rx. None of the Flagship General Partners nor Noubar B. Afeyan, Ph.D. directly own any of the shares held by the Flagship Pioneering Funds, and each of the Flagship General Partners and  Noubar Afeyan, Ph.D. disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":11441326},"source":{"system":"sec-edgar","filing":"0000899243-21-005747","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924321005747/doc4.xml","form_type":"4"}},{"id":2869332,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":2,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":4,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":5,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":6,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":7,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":8,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-2 Convertible Preferred Stock","published_at":"2021-02-10T18:59:46.000Z","date":"2021-02-08","kind":"exercise","acquired":false,"shares":9725122,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's Preferred Stock automatically convert into shares of Issuer's Common Stock, for no additional consideration, on a 1-for-1 basis immediately prior to the consummation of Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's Preferred Stock automatically convert into shares of Issuer's Common Stock, for no additional consideration, on a 1-for-1 basis immediately prior to the consummation of Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"The expiration date is not relevant to the conversion of these securities."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held directly by Flagship Pioneering Fund VI, L.P. (\"Flagship Pioneering VI\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The manager of Flagship Pioneering VI GP is Flagship Pioneering. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\" and, together with VentureLabs V Manager, Flagship Pioneering, and Flagship Pioneering VI GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"(continued from footnote 6) Noubar B. Afeyan, Ph.D. is the sole Director of Flagship Pioneering and may be deemed to have sole voting and investment control over all the shares held by VentureLabs V and Flagship Fund VI. In addition, Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP and may be deemed to possess sole voting and investment control over all the shares held by Flagship Fund V and Flagship Fund V Rx. None of the Flagship General Partners nor Noubar B. Afeyan, Ph.D. directly own any of the shares held by the Flagship Pioneering Funds, and each of the Flagship General Partners and  Noubar Afeyan, Ph.D. disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":9725122},"source":{"system":"sec-edgar","filing":"0000899243-21-005747","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924321005747/doc4.xml","form_type":"4"}},{"id":2869331,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":2,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":4,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":5,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":6,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":7,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":8,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-2 Convertible Preferred Stock","published_at":"2021-02-10T18:59:46.000Z","date":"2021-02-08","kind":"exercise","acquired":false,"shares":1487371,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Issuer's Preferred Stock automatically convert into shares of Issuer's Common Stock, for no additional consideration, on a 1-for-1 basis immediately prior to the consummation of Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Issuer's Preferred Stock automatically convert into shares of Issuer's Common Stock, for no additional consideration, on a 1-for-1 basis immediately prior to the consummation of Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"The expiration date is not relevant to the conversion of these securities."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held directly by Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The manager of Flagship Pioneering VI GP is Flagship Pioneering. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\" and, together with VentureLabs V Manager, Flagship Pioneering, and Flagship Pioneering VI GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"(continued from footnote 6) Noubar B. Afeyan, Ph.D. is the sole Director of Flagship Pioneering and may be deemed to have sole voting and investment control over all the shares held by VentureLabs V and Flagship Fund VI. In addition, Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP and may be deemed to possess sole voting and investment control over all the shares held by Flagship Fund V and Flagship Fund V Rx. None of the Flagship General Partners nor Noubar B. Afeyan, Ph.D. directly own any of the shares held by the Flagship Pioneering Funds, and each of the Flagship General Partners and  Noubar Afeyan, Ph.D. disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1487371},"source":{"system":"sec-edgar","filing":"0000899243-21-005747","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924321005747/doc4.xml","form_type":"4"}},{"id":2869330,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":2,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":4,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":5,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":6,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":7,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":8,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-02-10T18:59:46.000Z","date":"2021-02-08","kind":"exercise","acquired":true,"shares":11585199,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's Preferred Stock automatically convert into shares of Issuer's Common Stock, for no additional consideration, on a 1-for-1 basis immediately prior to the consummation of Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares held directly by Flagship Ventures Fund V, L.P. (\"Flagship Fund V\" and together with Flagship Fund V Rx, Flagship Pioneering VI, and VentureLabs V, the \"Flagship Pioneering Funds\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The manager of Flagship Pioneering VI GP is Flagship Pioneering. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\" and, together with VentureLabs V Manager, Flagship Pioneering, and Flagship Pioneering VI GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"(continued from footnote 6) Noubar B. Afeyan, Ph.D. is the sole Director of Flagship Pioneering and may be deemed to have sole voting and investment control over all the shares held by VentureLabs V and Flagship Fund VI. In addition, Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP and may be deemed to possess sole voting and investment control over all the shares held by Flagship Fund V and Flagship Fund V Rx. None of the Flagship General Partners nor Noubar B. Afeyan, Ph.D. directly own any of the shares held by the Flagship Pioneering Funds, and each of the Flagship General Partners and  Noubar Afeyan, Ph.D. disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":11585199,"source":{"system":"sec-edgar","filing":"0000899243-21-005747","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924321005747/doc4.xml","form_type":"4"}},{"id":2869329,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":2,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":4,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":5,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":6,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":7,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":8,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-02-10T18:59:46.000Z","date":"2021-02-08","kind":"exercise","acquired":true,"shares":11441326,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's Preferred Stock automatically convert into shares of Issuer's Common Stock, for no additional consideration, on a 1-for-1 basis immediately prior to the consummation of Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held directly by Flagship VentureLabs V LLC. (\"VentureLabs V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The manager of Flagship Pioneering VI GP is Flagship Pioneering. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\" and, together with VentureLabs V Manager, Flagship Pioneering, and Flagship Pioneering VI GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"(continued from footnote 6) Noubar B. Afeyan, Ph.D. is the sole Director of Flagship Pioneering and may be deemed to have sole voting and investment control over all the shares held by VentureLabs V and Flagship Fund VI. In addition, Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP and may be deemed to possess sole voting and investment control over all the shares held by Flagship Fund V and Flagship Fund V Rx. None of the Flagship General Partners nor Noubar B. Afeyan, Ph.D. directly own any of the shares held by the Flagship Pioneering Funds, and each of the Flagship General Partners and  Noubar Afeyan, Ph.D. disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":11441326,"source":{"system":"sec-edgar","filing":"0000899243-21-005747","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924321005747/doc4.xml","form_type":"4"}},{"id":2869328,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":2,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":4,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":5,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":6,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":7,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":8,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-02-10T18:59:46.000Z","date":"2021-02-08","kind":"exercise","acquired":true,"shares":9725122,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's Preferred Stock automatically convert into shares of Issuer's Common Stock, for no additional consideration, on a 1-for-1 basis immediately prior to the consummation of Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held directly by Flagship Pioneering Fund VI, L.P. (\"Flagship Pioneering VI\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The manager of Flagship Pioneering VI GP is Flagship Pioneering. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\" and, together with VentureLabs V Manager, Flagship Pioneering, and Flagship Pioneering VI GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"(continued from footnote 6) Noubar B. Afeyan, Ph.D. is the sole Director of Flagship Pioneering and may be deemed to have sole voting and investment control over all the shares held by VentureLabs V and Flagship Fund VI. In addition, Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP and may be deemed to possess sole voting and investment control over all the shares held by Flagship Fund V and Flagship Fund V Rx. None of the Flagship General Partners nor Noubar B. Afeyan, Ph.D. directly own any of the shares held by the Flagship Pioneering Funds, and each of the Flagship General Partners and  Noubar Afeyan, Ph.D. disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":9725122,"source":{"system":"sec-edgar","filing":"0000899243-21-005747","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924321005747/doc4.xml","form_type":"4"}},{"id":2869327,"issuer":{"id":4870,"kind":"organization","name":"Sana Biotechnology, Inc.","symbol":"SANA"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":2,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63978,"kind":"organization","name":"Flagship Pioneering, LLC","position":4,"cik":"0001400240","reported_name":"Flagship Pioneering Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":63980,"kind":"organization","name":"Flagship Pioneering Fund VI General Partner LLC","position":5,"cik":"0001724957","reported_name":"Flagship Pioneering Fund VI General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":64111,"kind":"organization","name":"Flagship Pioneering Fund VI, L.P.","position":6,"cik":"0001716926","reported_name":"Flagship Pioneering Fund VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109678,"kind":"organization","name":"Flagship VentureLabs V Manager LLC","position":7,"cik":"0001768987","reported_name":"Flagship VentureLabs V Manager LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":8,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-02-10T18:59:46.000Z","date":"2021-02-08","kind":"exercise","acquired":true,"shares":1487371,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares of Issuer's Preferred Stock automatically convert into shares of Issuer's Common Stock, for no additional consideration, on a 1-for-1 basis immediately prior to the consummation of Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held directly by Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"VentureLabs V Manager LLC (\"VentureLabs V Manager\") is the manager of VentureLabs V. Flagship Pioneering, Inc. (\"Flagship Pioneering\") is the manager of VentureLabs V Manager. The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC (\"Flagship Pioneering VI GP\"). The manager of Flagship Pioneering VI GP is Flagship Pioneering. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\" and, together with VentureLabs V Manager, Flagship Pioneering, and Flagship Pioneering VI GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"(continued from footnote 6) Noubar B. Afeyan, Ph.D. is the sole Director of Flagship Pioneering and may be deemed to have sole voting and investment control over all the shares held by VentureLabs V and Flagship Fund VI. In addition, Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP and may be deemed to possess sole voting and investment control over all the shares held by Flagship Fund V and Flagship Fund V Rx. None of the Flagship General Partners nor Noubar B. Afeyan, Ph.D. directly own any of the shares held by the Flagship Pioneering Funds, and each of the Flagship General Partners and  Noubar Afeyan, Ph.D. disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein."}],"balance_after":1487371,"source":{"system":"sec-edgar","filing":"0000899243-21-005747","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924321005747/doc4.xml","form_type":"4"}},{"id":3002990,"issuer":{"id":114958,"kind":"organization","name":"Codiak BioSciences, Inc.","symbol":"CDAK"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":2,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":4,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Preferred Stock","published_at":"2020-10-20T20:05:15.000Z","date":"2020-10-16","kind":"exercise","acquired":false,"shares":660048,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Each share of Series C Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-6.8855 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series C Preferred Stock was convertible based on a 1-for-6.8758 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Each share of Series C Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-6.8855 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series C Preferred Stock was convertible based on a 1-for-6.8758 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Each share of Series C Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-6.8855 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series C Preferred Stock was convertible based on a 1-for-6.8758 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Each share of Series C Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-6.8855 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series C Preferred Stock was convertible based on a 1-for-6.8758 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares held by Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\"). Flagship V GP is the general partner of Flagship Fund V Rx. Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP. Each of the reporting persons except for Flagship Fund V Rx disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":95861},"source":{"system":"sec-edgar","filing":"0000899243-20-028807","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924320028807/doc4.xml","form_type":"4"}},{"id":3002989,"issuer":{"id":114958,"kind":"organization","name":"Codiak BioSciences, Inc.","symbol":"CDAK"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":2,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":4,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Preferred Stock","published_at":"2020-10-20T20:05:15.000Z","date":"2020-10-16","kind":"exercise","acquired":false,"shares":660048,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Each share of Series C Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-6.8855 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series C Preferred Stock was convertible based on a 1-for-6.8758 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Each share of Series C Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-6.8855 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series C Preferred Stock was convertible based on a 1-for-6.8758 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Each share of Series C Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-6.8855 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series C Preferred Stock was convertible based on a 1-for-6.8758 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Each share of Series C Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-6.8855 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series C Preferred Stock was convertible based on a 1-for-6.8758 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares held by Flagship Ventures Fund V, L.P. (\"Flagship Fund V\"). Flagship Ventures Fund V General Partner LLC (\"Flagship V GP\") is the general partner of Flagship Fund V. Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP. Each of the reporting persons except for Flagship Fund V disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":95861},"source":{"system":"sec-edgar","filing":"0000899243-20-028807","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924320028807/doc4.xml","form_type":"4"}},{"id":3002988,"issuer":{"id":114958,"kind":"organization","name":"Codiak BioSciences, Inc.","symbol":"CDAK"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":2,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":3,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":4,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Preferred Stock","published_at":"2020-10-20T20:05:15.000Z","date":"2020-10-16","kind":"exercise","acquired":false,"shares":2416666,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each share of Series B Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-7.1366 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series B Preferred Stock was convertible based on a 1-for-7.1295 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Each share of Series B Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-7.1366 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series B Preferred Stock was convertible based on a 1-for-7.1295 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Each share of Series B Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-7.1366 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series B Preferred Stock was convertible based on a 1-for-7.1295 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Each share of Series B Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-7.1366 basis upon the closing of the Issuer's initial public offering on October 16, 2020 and had no expiration date. The reporting person previously reported shares of common stock into which the Series B Preferred Stock was convertible based on a 1-for-7.1295 conversion ratio estimated at pricing of the Issuer's initial public offering, which reflected a fixed conversion price plus an estimated adjustment based on the issuance of shares in the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares held by Flagship V VentureLabs Rx Fund, L.P. (\"Flagship Fund V Rx\"). Flagship V GP is the general partner of Flagship Fund V Rx. Noubar B. Afeyan, Ph.D. serves as the sole manager of Flagship V GP. 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Each of the filing persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":5000000,"source":{"system":"sec-edgar","filing":"0001104659-18-046534","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000110465918046534/a4.xml","form_type":"4"}},{"id":3862938,"issuer":{"id":116417,"kind":"organization","name":"Rubius Therapeutics, Inc.","symbol":"RUBY"},"owners":[{"id":97142,"kind":"organization","name":"Flagship Ventures Fund IV General Partner LLC","position":1,"cik":"0001508051","reported_name":"Flagship Ventures Fund IV General Partner LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":157564,"kind":"organization","name":"Flagship VentureLabs IV, LLC","position":2,"cik":"0001642578","reported_name":"Flagship VentureLabs IV, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":111426,"kind":"organization","name":"Flagship Ventures Fund IV, L.P.","position":3,"cik":"0001503559","reported_name":"Flagship Ventures Fund IV, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":126697,"kind":"organization","name":"Flagship Ventures Fund IV-Rx, L.P.","position":4,"cik":"0001590973","reported_name":"Flagship Ventures Fund IV-Rx, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":5,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":6,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":8,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":9,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-07-23T16:34:53.000Z","date":"2018-07-20","kind":"exercise","acquired":true,"shares":5000000,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The preferred stock is convertible into the Issuer's common stock on a one-for-one basis at the holder's election and has no expiration date. The preferred stock automatically convert into common stock upon the closing of the Issuer's initial public offering held on July 20, 2018."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Shares held by Flagship Ventures Fund V, L.P. (\"Flagship Fund V\"). Flagship Ventures Fund V General Partner LLC (\"Flagship Fund V GP\") is the general partner of Flagship Fund V. Noubar B. Afeyan, Ph.D. is the sole manager of Flagship Fund V GP and may be deemed to possess sole voting and investment power with respect to all shares held by Flagship Fund V. Each of the filing persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":5000000,"source":{"system":"sec-edgar","filing":"0001104659-18-046534","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000110465918046534/a4.xml","form_type":"4"}},{"id":3862937,"issuer":{"id":116417,"kind":"organization","name":"Rubius Therapeutics, Inc.","symbol":"RUBY"},"owners":[{"id":97142,"kind":"organization","name":"Flagship Ventures Fund IV General Partner LLC","position":1,"cik":"0001508051","reported_name":"Flagship Ventures Fund IV General Partner LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":157564,"kind":"organization","name":"Flagship VentureLabs IV, LLC","position":2,"cik":"0001642578","reported_name":"Flagship VentureLabs IV, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":111426,"kind":"organization","name":"Flagship Ventures Fund IV, L.P.","position":3,"cik":"0001503559","reported_name":"Flagship Ventures Fund IV, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":126697,"kind":"organization","name":"Flagship Ventures Fund IV-Rx, L.P.","position":4,"cik":"0001590973","reported_name":"Flagship Ventures Fund IV-Rx, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":5,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":6,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":8,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":9,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-07-23T16:34:53.000Z","date":"2018-07-20","kind":"exercise","acquired":true,"shares":3830402,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The preferred stock is convertible into the Issuer's common stock on a one-for-one basis at the holder's election and has no expiration date. The preferred stock automatically convert into common stock upon the closing of the Issuer's initial public offering held on July 20, 2018."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Shares held by Flagship Ventures Fund IV-Rx, L.P. (\"Flagship Fund IV-Rx\"). Flagship Fund IV GP is the general partner of Flagship IV-Rx. Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship Fund IV GP. Flagship Fund IV GP and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship IV-Rx. Each of the filing persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":3830402,"source":{"system":"sec-edgar","filing":"0001104659-18-046534","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000110465918046534/a4.xml","form_type":"4"}},{"id":3862936,"issuer":{"id":116417,"kind":"organization","name":"Rubius Therapeutics, Inc.","symbol":"RUBY"},"owners":[{"id":97142,"kind":"organization","name":"Flagship Ventures Fund IV General Partner LLC","position":1,"cik":"0001508051","reported_name":"Flagship Ventures Fund IV General Partner LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":157564,"kind":"organization","name":"Flagship VentureLabs IV, LLC","position":2,"cik":"0001642578","reported_name":"Flagship VentureLabs IV, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":111426,"kind":"organization","name":"Flagship Ventures Fund IV, L.P.","position":3,"cik":"0001503559","reported_name":"Flagship Ventures Fund IV, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":126697,"kind":"organization","name":"Flagship Ventures Fund IV-Rx, L.P.","position":4,"cik":"0001590973","reported_name":"Flagship Ventures Fund IV-Rx, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":5,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":6,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":8,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":9,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-07-23T16:34:53.000Z","date":"2018-07-20","kind":"exercise","acquired":true,"shares":15323593,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The preferred stock is convertible into the Issuer's common stock on a one-for-one basis at the holder's election and has no expiration date. The preferred stock automatically convert into common stock upon the closing of the Issuer's initial public offering held on July 20, 2018."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares held by Flagship Fund IV. Flagship Fund IV GP is the general partner of Flagship Fund IV. Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship Fund IV GP and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship Fund IV. Each of the filing persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":15323593,"source":{"system":"sec-edgar","filing":"0001104659-18-046534","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000110465918046534/a4.xml","form_type":"4"}},{"id":3933145,"issuer":{"id":108468,"kind":"organization","name":"Evelo Biosciences, Inc.","symbol":"EVLO"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":2,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159413,"kind":"organization","name":"Nutritional Health Disruptive Innovation Fund, L.P.","position":5,"cik":"0001725001","reported_name":"Nutritional Health Disruptive Innovation Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159414,"kind":"organization","name":"Nutritional Health Side Fund, L.P.","position":6,"cik":"0001725000","reported_name":"Nutritional Health Side Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69365,"kind":"person","name":"Flagship Ventures Opportunities Fund I General Partner LLC","position":8,"cik":"0001725004","reported_name":"Flagship Ventures Opportunities Fund I General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":10,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Preferred Stock","published_at":"2018-05-15T20:41:27.000Z","date":"2018-05-11","kind":"exercise","acquired":false,"shares":4643963,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Following the transactions reported herein, Flagship VentureLabs IV LLC (\"VentureLabs IV\") holds 684,372 shares of common stock, Flagship VentureLabs V LLC (\"VentureLabs V\") holds 2,645,637 shares of common stock, Flagship Ventures Fund IV L.P. (\"Flagship Fund IV\") holds 1,836,836 shares of common stock, Flagship Ventures Fund IV-Rx, L.P. (\"Flagship Fund IV-Rx\" and, together with VentureLabs IV and Flagship Fund IV, the \"Flagship Fund IV Funds\") holds 448,911 shares of common stock,  Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") holds 4,201,284 shares of common stock, Flagship V VentureLabs Rx Fund, L.P. (\"VentureLabs Rx V\") holds 1,609,871  shares of common stock,  Nutritional Health Side Fund, L.P. (\"Nutritional Health Side Fund\") holds 795,950 shares of common stock,"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"[Continued] Nutritional Health Disruptive Innovation Fund, L.P. (\"Nutritional Innovation Fund\" and, together with VentureLabs V, Flagship Fund V, VentureLabs Rx V and Nutritional Health Side Fund, the \"Flagship Fund V Funds\") holds 3,598,177 shares of common stock, and Flagship Ventures Opportunities Fund I, L.P. (\"Flagship Opportunities I\" and, together with the Flagship Fund IV Funds and Flagship Fund V Funds, the \"Flagship Funds\") holds 2,412,365 shares of common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Flagship Fund IV is a member of VentureLabs IV and also serves as its manager. Flagship Fund V is a member of VentureLabs V and also serves as its manager."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The general partner of each of Flagship Fund IV and Flagship Fund IV-Rx is Flagship Ventures Fund IV General Partner LLC (\"Flagship Fund IV GP\"). The general partner of Flagship Fund V, VentureLabs Rx-V, Nutritional Innovation Fund and Nutritional Health Side Fund is Flagship Ventures Fund V General Partner LLC (\"Flagship Fund V GP\"). The general partner of Flagship Opportunities Fund I is Flagship Ventures Opportunities Fund I General Partner LLC (\"Flagship Opportunities GP,\" and together with Flagship Fund IV GP and Flagship Fund V GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship Fund IV GP and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship Fund IV Funds. Dr. Afeyan also serves as the managing member of the Flagship Fund V GP and Flagship Opportunities Fund GP and may be deemed to possess sole voting and investment control over the shares held by the Flagship Fund V Funds and Flagship Opportunities Fund I. Each of the Flagship General Partners, Dr. Afeyan and Mr. Kania  disclaims beneficial ownership of any shares beneficially owned by the Flagship Funds except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1138505},"source":{"system":"sec-edgar","filing":"0000899243-18-013013","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924318013013/doc4.xml","form_type":"4"}},{"id":3933144,"issuer":{"id":108468,"kind":"organization","name":"Evelo Biosciences, Inc.","symbol":"EVLO"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":2,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159413,"kind":"organization","name":"Nutritional Health Disruptive Innovation Fund, L.P.","position":5,"cik":"0001725001","reported_name":"Nutritional Health Disruptive Innovation Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159414,"kind":"organization","name":"Nutritional Health Side Fund, L.P.","position":6,"cik":"0001725000","reported_name":"Nutritional Health Side Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69365,"kind":"person","name":"Flagship Ventures Opportunities Fund I General Partner LLC","position":8,"cik":"0001725004","reported_name":"Flagship Ventures Opportunities Fund I General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":10,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Preferred Stock","published_at":"2018-05-15T20:41:27.000Z","date":"2018-05-11","kind":"exercise","acquired":false,"shares":18611110,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Following the transactions reported herein, Flagship VentureLabs IV LLC (\"VentureLabs IV\") holds 684,372 shares of common stock, Flagship VentureLabs V LLC (\"VentureLabs V\") holds 2,645,637 shares of common stock, Flagship Ventures Fund IV L.P. (\"Flagship Fund IV\") holds 1,836,836 shares of common stock, Flagship Ventures Fund IV-Rx, L.P. (\"Flagship Fund IV-Rx\" and, together with VentureLabs IV and Flagship Fund IV, the \"Flagship Fund IV Funds\") holds 448,911 shares of common stock,  Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") holds 4,201,284 shares of common stock, Flagship V VentureLabs Rx Fund, L.P. (\"VentureLabs Rx V\") holds 1,609,871  shares of common stock,  Nutritional Health Side Fund, L.P. (\"Nutritional Health Side Fund\") holds 795,950 shares of common stock,"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"[Continued] Nutritional Health Disruptive Innovation Fund, L.P. (\"Nutritional Innovation Fund\" and, together with VentureLabs V, Flagship Fund V, VentureLabs Rx V and Nutritional Health Side Fund, the \"Flagship Fund V Funds\") holds 3,598,177 shares of common stock, and Flagship Ventures Opportunities Fund I, L.P. (\"Flagship Opportunities I\" and, together with the Flagship Fund IV Funds and Flagship Fund V Funds, the \"Flagship Funds\") holds 2,412,365 shares of common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Flagship Fund IV is a member of VentureLabs IV and also serves as its manager. Flagship Fund V is a member of VentureLabs V and also serves as its manager."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The general partner of each of Flagship Fund IV and Flagship Fund IV-Rx is Flagship Ventures Fund IV General Partner LLC (\"Flagship Fund IV GP\"). The general partner of Flagship Fund V, VentureLabs Rx-V, Nutritional Innovation Fund and Nutritional Health Side Fund is Flagship Ventures Fund V General Partner LLC (\"Flagship Fund V GP\"). The general partner of Flagship Opportunities Fund I is Flagship Ventures Opportunities Fund I General Partner LLC (\"Flagship Opportunities GP,\" and together with Flagship Fund IV GP and Flagship Fund V GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship Fund IV GP and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship Fund IV Funds. Dr. Afeyan also serves as the managing member of the Flagship Fund V GP and Flagship Opportunities Fund GP and may be deemed to possess sole voting and investment control over the shares held by the Flagship Fund V Funds and Flagship Opportunities Fund I. Each of the Flagship General Partners, Dr. Afeyan and Mr. Kania  disclaims beneficial ownership of any shares beneficially owned by the Flagship Funds except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":4562664},"source":{"system":"sec-edgar","filing":"0000899243-18-013013","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924318013013/doc4.xml","form_type":"4"}},{"id":3933143,"issuer":{"id":108468,"kind":"organization","name":"Evelo Biosciences, Inc.","symbol":"EVLO"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":2,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159413,"kind":"organization","name":"Nutritional Health Disruptive Innovation Fund, L.P.","position":5,"cik":"0001725001","reported_name":"Nutritional Health Disruptive Innovation Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159414,"kind":"organization","name":"Nutritional Health Side Fund, L.P.","position":6,"cik":"0001725000","reported_name":"Nutritional Health Side Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69365,"kind":"person","name":"Flagship Ventures Opportunities Fund I General Partner LLC","position":8,"cik":"0001725004","reported_name":"Flagship Ventures Opportunities Fund I General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":10,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-3 Preferred Stock","published_at":"2018-05-15T20:41:27.000Z","date":"2018-05-11","kind":"exercise","acquired":false,"shares":8333000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Following the transactions reported herein, Flagship VentureLabs IV LLC (\"VentureLabs IV\") holds 684,372 shares of common stock, Flagship VentureLabs V LLC (\"VentureLabs V\") holds 2,645,637 shares of common stock, Flagship Ventures Fund IV L.P. (\"Flagship Fund IV\") holds 1,836,836 shares of common stock, Flagship Ventures Fund IV-Rx, L.P. (\"Flagship Fund IV-Rx\" and, together with VentureLabs IV and Flagship Fund IV, the \"Flagship Fund IV Funds\") holds 448,911 shares of common stock,  Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") holds 4,201,284 shares of common stock, Flagship V VentureLabs Rx Fund, L.P. (\"VentureLabs Rx V\") holds 1,609,871  shares of common stock,  Nutritional Health Side Fund, L.P. (\"Nutritional Health Side Fund\") holds 795,950 shares of common stock,"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"[Continued] Nutritional Health Disruptive Innovation Fund, L.P. (\"Nutritional Innovation Fund\" and, together with VentureLabs V, Flagship Fund V, VentureLabs Rx V and Nutritional Health Side Fund, the \"Flagship Fund V Funds\") holds 3,598,177 shares of common stock, and Flagship Ventures Opportunities Fund I, L.P. (\"Flagship Opportunities I\" and, together with the Flagship Fund IV Funds and Flagship Fund V Funds, the \"Flagship Funds\") holds 2,412,365 shares of common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Flagship Fund IV is a member of VentureLabs IV and also serves as its manager. Flagship Fund V is a member of VentureLabs V and also serves as its manager."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The general partner of each of Flagship Fund IV and Flagship Fund IV-Rx is Flagship Ventures Fund IV General Partner LLC (\"Flagship Fund IV GP\"). The general partner of Flagship Fund V, VentureLabs Rx-V, Nutritional Innovation Fund and Nutritional Health Side Fund is Flagship Ventures Fund V General Partner LLC (\"Flagship Fund V GP\"). The general partner of Flagship Opportunities Fund I is Flagship Ventures Opportunities Fund I General Partner LLC (\"Flagship Opportunities GP,\" and together with Flagship Fund IV GP and Flagship Fund V GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship Fund IV GP and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship Fund IV Funds. Dr. Afeyan also serves as the managing member of the Flagship Fund V GP and Flagship Opportunities Fund GP and may be deemed to possess sole voting and investment control over the shares held by the Flagship Fund V Funds and Flagship Opportunities Fund I. Each of the Flagship General Partners, Dr. Afeyan and Mr. Kania  disclaims beneficial ownership of any shares beneficially owned by the Flagship Funds except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":2042902},"source":{"system":"sec-edgar","filing":"0000899243-18-013013","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924318013013/doc4.xml","form_type":"4"}},{"id":3933142,"issuer":{"id":108468,"kind":"organization","name":"Evelo Biosciences, Inc.","symbol":"EVLO"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":2,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159413,"kind":"organization","name":"Nutritional Health Disruptive Innovation Fund, L.P.","position":5,"cik":"0001725001","reported_name":"Nutritional Health Disruptive Innovation Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159414,"kind":"organization","name":"Nutritional Health Side Fund, L.P.","position":6,"cik":"0001725000","reported_name":"Nutritional Health Side Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69365,"kind":"person","name":"Flagship Ventures Opportunities Fund I General Partner LLC","position":8,"cik":"0001725004","reported_name":"Flagship Ventures Opportunities Fund I General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":10,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-2 Preferred Stock","published_at":"2018-05-15T20:41:27.000Z","date":"2018-05-11","kind":"exercise","acquired":false,"shares":5416667,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Following the transactions reported herein, Flagship VentureLabs IV LLC (\"VentureLabs IV\") holds 684,372 shares of common stock, Flagship VentureLabs V LLC (\"VentureLabs V\") holds 2,645,637 shares of common stock, Flagship Ventures Fund IV L.P. (\"Flagship Fund IV\") holds 1,836,836 shares of common stock, Flagship Ventures Fund IV-Rx, L.P. (\"Flagship Fund IV-Rx\" and, together with VentureLabs IV and Flagship Fund IV, the \"Flagship Fund IV Funds\") holds 448,911 shares of common stock,  Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") holds 4,201,284 shares of common stock, Flagship V VentureLabs Rx Fund, L.P. (\"VentureLabs Rx V\") holds 1,609,871  shares of common stock,  Nutritional Health Side Fund, L.P. (\"Nutritional Health Side Fund\") holds 795,950 shares of common stock,"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"[Continued] Nutritional Health Disruptive Innovation Fund, L.P. (\"Nutritional Innovation Fund\" and, together with VentureLabs V, Flagship Fund V, VentureLabs Rx V and Nutritional Health Side Fund, the \"Flagship Fund V Funds\") holds 3,598,177 shares of common stock, and Flagship Ventures Opportunities Fund I, L.P. (\"Flagship Opportunities I\" and, together with the Flagship Fund IV Funds and Flagship Fund V Funds, the \"Flagship Funds\") holds 2,412,365 shares of common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Flagship Fund IV is a member of VentureLabs IV and also serves as its manager. Flagship Fund V is a member of VentureLabs V and also serves as its manager."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The general partner of each of Flagship Fund IV and Flagship Fund IV-Rx is Flagship Ventures Fund IV General Partner LLC (\"Flagship Fund IV GP\"). The general partner of Flagship Fund V, VentureLabs Rx-V, Nutritional Innovation Fund and Nutritional Health Side Fund is Flagship Ventures Fund V General Partner LLC (\"Flagship Fund V GP\"). The general partner of Flagship Opportunities Fund I is Flagship Ventures Opportunities Fund I General Partner LLC (\"Flagship Opportunities GP,\" and together with Flagship Fund IV GP and Flagship Fund V GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship Fund IV GP and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship Fund IV Funds. Dr. Afeyan also serves as the managing member of the Flagship Fund V GP and Flagship Opportunities Fund GP and may be deemed to possess sole voting and investment control over the shares held by the Flagship Fund V Funds and Flagship Opportunities Fund I. Each of the Flagship General Partners, Dr. Afeyan and Mr. Kania  disclaims beneficial ownership of any shares beneficially owned by the Flagship Funds except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1327939},"source":{"system":"sec-edgar","filing":"0000899243-18-013013","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924318013013/doc4.xml","form_type":"4"}},{"id":3933141,"issuer":{"id":108468,"kind":"organization","name":"Evelo Biosciences, Inc.","symbol":"EVLO"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":2,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159413,"kind":"organization","name":"Nutritional Health Disruptive Innovation Fund, L.P.","position":5,"cik":"0001725001","reported_name":"Nutritional Health Disruptive Innovation Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159414,"kind":"organization","name":"Nutritional Health Side Fund, L.P.","position":6,"cik":"0001725000","reported_name":"Nutritional Health Side Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69365,"kind":"person","name":"Flagship Ventures Opportunities Fund I General Partner LLC","position":8,"cik":"0001725004","reported_name":"Flagship Ventures Opportunities Fund I General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":10,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-1 Preferred Stock","published_at":"2018-05-15T20:41:27.000Z","date":"2018-05-11","kind":"exercise","acquired":false,"shares":10102055,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Following the transactions reported herein, Flagship VentureLabs IV LLC (\"VentureLabs IV\") holds 684,372 shares of common stock, Flagship VentureLabs V LLC (\"VentureLabs V\") holds 2,645,637 shares of common stock, Flagship Ventures Fund IV L.P. (\"Flagship Fund IV\") holds 1,836,836 shares of common stock, Flagship Ventures Fund IV-Rx, L.P. (\"Flagship Fund IV-Rx\" and, together with VentureLabs IV and Flagship Fund IV, the \"Flagship Fund IV Funds\") holds 448,911 shares of common stock,  Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") holds 4,201,284 shares of common stock, Flagship V VentureLabs Rx Fund, L.P. (\"VentureLabs Rx V\") holds 1,609,871  shares of common stock,  Nutritional Health Side Fund, L.P. (\"Nutritional Health Side Fund\") holds 795,950 shares of common stock,"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"[Continued] Nutritional Health Disruptive Innovation Fund, L.P. (\"Nutritional Innovation Fund\" and, together with VentureLabs V, Flagship Fund V, VentureLabs Rx V and Nutritional Health Side Fund, the \"Flagship Fund V Funds\") holds 3,598,177 shares of common stock, and Flagship Ventures Opportunities Fund I, L.P. (\"Flagship Opportunities I\" and, together with the Flagship Fund IV Funds and Flagship Fund V Funds, the \"Flagship Funds\") holds 2,412,365 shares of common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Flagship Fund IV is a member of VentureLabs IV and also serves as its manager. Flagship Fund V is a member of VentureLabs V and also serves as its manager."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The general partner of each of Flagship Fund IV and Flagship Fund IV-Rx is Flagship Ventures Fund IV General Partner LLC (\"Flagship Fund IV GP\"). The general partner of Flagship Fund V, VentureLabs Rx-V, Nutritional Innovation Fund and Nutritional Health Side Fund is Flagship Ventures Fund V General Partner LLC (\"Flagship Fund V GP\"). The general partner of Flagship Opportunities Fund I is Flagship Ventures Opportunities Fund I General Partner LLC (\"Flagship Opportunities GP,\" and together with Flagship Fund IV GP and Flagship Fund V GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship Fund IV GP and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship Fund IV Funds. Dr. Afeyan also serves as the managing member of the Flagship Fund V GP and Flagship Opportunities Fund GP and may be deemed to possess sole voting and investment control over the shares held by the Flagship Fund V Funds and Flagship Opportunities Fund I. Each of the Flagship General Partners, Dr. Afeyan and Mr. Kania  disclaims beneficial ownership of any shares beneficially owned by the Flagship Funds except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":2476600},"source":{"system":"sec-edgar","filing":"0000899243-18-013013","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924318013013/doc4.xml","form_type":"4"}},{"id":3933140,"issuer":{"id":108468,"kind":"organization","name":"Evelo Biosciences, Inc.","symbol":"EVLO"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":2,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159413,"kind":"organization","name":"Nutritional Health Disruptive Innovation Fund, L.P.","position":5,"cik":"0001725001","reported_name":"Nutritional Health Disruptive Innovation Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159414,"kind":"organization","name":"Nutritional Health Side Fund, L.P.","position":6,"cik":"0001725000","reported_name":"Nutritional Health Side Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69365,"kind":"person","name":"Flagship Ventures Opportunities Fund I General Partner LLC","position":8,"cik":"0001725004","reported_name":"Flagship Ventures Opportunities Fund I General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":10,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Preferred Stock","published_at":"2018-05-15T20:41:27.000Z","date":"2018-05-11","kind":"exercise","acquired":false,"shares":12536945,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Upon closing of the Issuer's initial public offering, each share of preferred stock was automatically converted into the Issuer's common stock on a 0.2452-for-one basis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Following the transactions reported herein, Flagship VentureLabs IV LLC (\"VentureLabs IV\") holds 684,372 shares of common stock, Flagship VentureLabs V LLC (\"VentureLabs V\") holds 2,645,637 shares of common stock, Flagship Ventures Fund IV L.P. (\"Flagship Fund IV\") holds 1,836,836 shares of common stock, Flagship Ventures Fund IV-Rx, L.P. (\"Flagship Fund IV-Rx\" and, together with VentureLabs IV and Flagship Fund IV, the \"Flagship Fund IV Funds\") holds 448,911 shares of common stock,  Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") holds 4,201,284 shares of common stock, Flagship V VentureLabs Rx Fund, L.P. (\"VentureLabs Rx V\") holds 1,609,871  shares of common stock,  Nutritional Health Side Fund, L.P. (\"Nutritional Health Side Fund\") holds 795,950 shares of common stock,"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"[Continued] Nutritional Health Disruptive Innovation Fund, L.P. (\"Nutritional Innovation Fund\" and, together with VentureLabs V, Flagship Fund V, VentureLabs Rx V and Nutritional Health Side Fund, the \"Flagship Fund V Funds\") holds 3,598,177 shares of common stock, and Flagship Ventures Opportunities Fund I, L.P. (\"Flagship Opportunities I\" and, together with the Flagship Fund IV Funds and Flagship Fund V Funds, the \"Flagship Funds\") holds 2,412,365 shares of common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Flagship Fund IV is a member of VentureLabs IV and also serves as its manager. Flagship Fund V is a member of VentureLabs V and also serves as its manager."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The general partner of each of Flagship Fund IV and Flagship Fund IV-Rx is Flagship Ventures Fund IV General Partner LLC (\"Flagship Fund IV GP\"). The general partner of Flagship Fund V, VentureLabs Rx-V, Nutritional Innovation Fund and Nutritional Health Side Fund is Flagship Ventures Fund V General Partner LLC (\"Flagship Fund V GP\"). The general partner of Flagship Opportunities Fund I is Flagship Ventures Opportunities Fund I General Partner LLC (\"Flagship Opportunities GP,\" and together with Flagship Fund IV GP and Flagship Fund V GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship Fund IV GP and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship Fund IV Funds. Dr. Afeyan also serves as the managing member of the Flagship Fund V GP and Flagship Opportunities Fund GP and may be deemed to possess sole voting and investment control over the shares held by the Flagship Fund V Funds and Flagship Opportunities Fund I. Each of the Flagship General Partners, Dr. Afeyan and Mr. Kania  disclaims beneficial ownership of any shares beneficially owned by the Flagship Funds except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":3073533},"source":{"system":"sec-edgar","filing":"0000899243-18-013013","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924318013013/doc4.xml","form_type":"4"}},{"id":3933139,"issuer":{"id":108468,"kind":"organization","name":"Evelo Biosciences, Inc.","symbol":"EVLO"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":2,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159413,"kind":"organization","name":"Nutritional Health Disruptive Innovation Fund, L.P.","position":5,"cik":"0001725001","reported_name":"Nutritional Health Disruptive Innovation Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159414,"kind":"organization","name":"Nutritional Health Side Fund, L.P.","position":6,"cik":"0001725000","reported_name":"Nutritional Health Side Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69365,"kind":"person","name":"Flagship Ventures Opportunities Fund I General Partner LLC","position":8,"cik":"0001725004","reported_name":"Flagship Ventures Opportunities Fund I General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":10,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-05-15T20:41:27.000Z","date":"2018-05-11","kind":"purchase","acquired":true,"shares":281250,"price":16,"value":4500000.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F6","text":"Includes 35,156, 105,469, and 140,625 shares purchased by Nutritional Health Side Fund, Nutritional Innovation Fund, and  Flagship Opportunities I, respectively, in connection with the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Following the transactions reported herein, Flagship VentureLabs IV LLC (\"VentureLabs IV\") holds 684,372 shares of common stock, Flagship VentureLabs V LLC (\"VentureLabs V\") holds 2,645,637 shares of common stock, Flagship Ventures Fund IV L.P. (\"Flagship Fund IV\") holds 1,836,836 shares of common stock, Flagship Ventures Fund IV-Rx, L.P. (\"Flagship Fund IV-Rx\" and, together with VentureLabs IV and Flagship Fund IV, the \"Flagship Fund IV Funds\") holds 448,911 shares of common stock,  Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") holds 4,201,284 shares of common stock, Flagship V VentureLabs Rx Fund, L.P. (\"VentureLabs Rx V\") holds 1,609,871  shares of common stock,  Nutritional Health Side Fund, L.P. (\"Nutritional Health Side Fund\") holds 795,950 shares of common stock,"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"[Continued] Nutritional Health Disruptive Innovation Fund, L.P. (\"Nutritional Innovation Fund\" and, together with VentureLabs V, Flagship Fund V, VentureLabs Rx V and Nutritional Health Side Fund, the \"Flagship Fund V Funds\") holds 3,598,177 shares of common stock, and Flagship Ventures Opportunities Fund I, L.P. (\"Flagship Opportunities I\" and, together with the Flagship Fund IV Funds and Flagship Fund V Funds, the \"Flagship Funds\") holds 2,412,365 shares of common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Flagship Fund IV is a member of VentureLabs IV and also serves as its manager. Flagship Fund V is a member of VentureLabs V and also serves as its manager."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The general partner of each of Flagship Fund IV and Flagship Fund IV-Rx is Flagship Ventures Fund IV General Partner LLC (\"Flagship Fund IV GP\"). The general partner of Flagship Fund V, VentureLabs Rx-V, Nutritional Innovation Fund and Nutritional Health Side Fund is Flagship Ventures Fund V General Partner LLC (\"Flagship Fund V GP\"). The general partner of Flagship Opportunities Fund I is Flagship Ventures Opportunities Fund I General Partner LLC (\"Flagship Opportunities GP,\" and together with Flagship Fund IV GP and Flagship Fund V GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship Fund IV GP and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship Fund IV Funds. Dr. Afeyan also serves as the managing member of the Flagship Fund V GP and Flagship Opportunities Fund GP and may be deemed to possess sole voting and investment control over the shares held by the Flagship Fund V Funds and Flagship Opportunities Fund I. Each of the Flagship General Partners, Dr. Afeyan and Mr. Kania  disclaims beneficial ownership of any shares beneficially owned by the Flagship Funds except to the extent of its or his pecuniary interest therein."}],"balance_after":18233403,"source":{"system":"sec-edgar","filing":"0000899243-18-013013","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924318013013/doc4.xml","form_type":"4"}},{"id":3933138,"issuer":{"id":108468,"kind":"organization","name":"Evelo Biosciences, Inc.","symbol":"EVLO"},"owners":[{"id":69363,"kind":"person","name":"Flagship Ventures Fund V General Partner LLC","position":1,"cik":"0001724575","reported_name":"Flagship Ventures Fund V General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109679,"kind":"organization","name":"Flagship VentureLabs V LLC","position":2,"cik":"0001724959","reported_name":"Flagship VentureLabs V LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69364,"kind":"person","name":"Flagship Ventures Fund V, L.P.","position":3,"cik":"0001627639","reported_name":"Flagship Ventures Fund V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":109677,"kind":"organization","name":"Flagship V VentureLabs Rx Fund, L.P.","position":4,"cik":"0001724939","reported_name":"Flagship V VentureLabs Rx Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159413,"kind":"organization","name":"Nutritional Health Disruptive Innovation Fund, L.P.","position":5,"cik":"0001725001","reported_name":"Nutritional Health Disruptive Innovation Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":159414,"kind":"organization","name":"Nutritional Health Side Fund, L.P.","position":6,"cik":"0001725000","reported_name":"Nutritional Health Side Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69366,"kind":"person","name":"Flagship Ventures Opportunities Fund I, L.P.","position":7,"cik":"0001677345","reported_name":"Flagship Ventures Opportunities Fund I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":69365,"kind":"person","name":"Flagship Ventures Opportunities Fund I General Partner LLC","position":8,"cik":"0001725004","reported_name":"Flagship Ventures Opportunities Fund I General Partner LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44731,"kind":"person","name":"Afeyan Noubar","position":9,"cik":"0001222012","reported_name":"AFEYAN NOUBAR","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44658,"kind":"person","name":"Kania Edwin","position":10,"cik":"0001255927","reported_name":"KANIA EDWIN M JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-05-15T20:41:27.000Z","date":"2018-05-11","kind":"exercise","acquired":true,"shares":14622143,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Following the transactions reported herein, Flagship VentureLabs IV LLC (\"VentureLabs IV\") holds 684,372 shares of common stock, Flagship VentureLabs V LLC (\"VentureLabs V\") holds 2,645,637 shares of common stock, Flagship Ventures Fund IV L.P. (\"Flagship Fund IV\") holds 1,836,836 shares of common stock, Flagship Ventures Fund IV-Rx, L.P. (\"Flagship Fund IV-Rx\" and, together with VentureLabs IV and Flagship Fund IV, the \"Flagship Fund IV Funds\") holds 448,911 shares of common stock,  Flagship Ventures Fund V, L.P. (\"Flagship Fund V\") holds 4,201,284 shares of common stock, Flagship V VentureLabs Rx Fund, L.P. (\"VentureLabs Rx V\") holds 1,609,871  shares of common stock,  Nutritional Health Side Fund, L.P. (\"Nutritional Health Side Fund\") holds 795,950 shares of common stock,"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"[Continued] Nutritional Health Disruptive Innovation Fund, L.P. (\"Nutritional Innovation Fund\" and, together with VentureLabs V, Flagship Fund V, VentureLabs Rx V and Nutritional Health Side Fund, the \"Flagship Fund V Funds\") holds 3,598,177 shares of common stock, and Flagship Ventures Opportunities Fund I, L.P. (\"Flagship Opportunities I\" and, together with the Flagship Fund IV Funds and Flagship Fund V Funds, the \"Flagship Funds\") holds 2,412,365 shares of common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Flagship Fund IV is a member of VentureLabs IV and also serves as its manager. Flagship Fund V is a member of VentureLabs V and also serves as its manager."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The general partner of each of Flagship Fund IV and Flagship Fund IV-Rx is Flagship Ventures Fund IV General Partner LLC (\"Flagship Fund IV GP\"). The general partner of Flagship Fund V, VentureLabs Rx-V, Nutritional Innovation Fund and Nutritional Health Side Fund is Flagship Ventures Fund V General Partner LLC (\"Flagship Fund V GP\"). The general partner of Flagship Opportunities Fund I is Flagship Ventures Opportunities Fund I General Partner LLC (\"Flagship Opportunities GP,\" and together with Flagship Fund IV GP and Flagship Fund V GP, the \"Flagship General Partners\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship Fund IV GP and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship Fund IV Funds. Dr. Afeyan also serves as the managing member of the Flagship Fund V GP and Flagship Opportunities Fund GP and may be deemed to possess sole voting and investment control over the shares held by the Flagship Fund V Funds and Flagship Opportunities Fund I. Each of the Flagship General Partners, Dr. Afeyan and Mr. Kania  disclaims beneficial ownership of any shares beneficially owned by the Flagship Funds except to the extent of its or his pecuniary interest therein."}],"balance_after":17952153,"source":{"system":"sec-edgar","filing":"0000899243-18-013013","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724939/000089924318013013/doc4.xml","form_type":"4"}}]}