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The RSUs do not have an expiration date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":27837},"source":{"system":"sec-edgar","filing":"0000950170-24-118409","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000095017024118409/ownership.xml","form_type":"4"}},{"id":1379888,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Common Stock","published_at":"2024-10-29T22:24:31.000Z","date":"2024-10-28","kind":"sale","planned":true,"acquired":false,"shares":8748,"price":0.6901,"value":6036.9948,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 4, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in column 4 is a weighted average of the sale prices. These shares were sold in multiple transactions at prices ranging from $0.69 to $ 0.69605, inclusive. The reporting person undertakes 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 set forth in this footnote."}],"balance_after":165082,"source":{"system":"sec-edgar","filing":"0000950170-24-118409","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000095017024118409/ownership.xml","form_type":"4"}},{"id":1379887,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Common Stock","published_at":"2024-10-29T22:24:31.000Z","date":"2024-10-27","kind":"exercise","planned":true,"acquired":true,"shares":27837,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On February 3, 2023, the reporting person was granted an award of 55,675 restricted stock units (\"RSUs\"), which vest in the form of shares of the Issuer's common stock in two substantially equal installments upon the satisfaction of certain performance criteria. 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The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. 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The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. 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These shares were sold in multiple transactions at prices ranging from $0.94 to $0.950451, inclusive. The reporting person undertakes 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 set forth in this footnote."}],"balance_after":140698,"source":{"system":"sec-edgar","filing":"0000950170-24-062059","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000095017024062059/ownership.xml","form_type":"4"}},{"id":1510482,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Common Stock","published_at":"2024-05-18T00:18:50.000Z","date":"2024-05-15","kind":"exercise","planned":true,"acquired":true,"shares":7812,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."}],"balance_after":143133,"source":{"system":"sec-edgar","filing":"0000950170-24-062059","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000095017024062059/ownership.xml","form_type":"4"}},{"id":1637519,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Restricted Stock Units","published_at":"2024-02-17T02:42:07.000Z","date":"2024-02-15","kind":"exercise","planned":true,"acquired":false,"shares":31250,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units will vest and settle in 12 equal quarterly installments thereafter. 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The remainder of the restricted stock units will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The restricted stock units will vest and settle as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date."}],"balance_after":106250,"derivative":{"underlying":"Common Stock","underlying_shares":106250},"source":{"system":"sec-edgar","filing":"0000950170-24-016710","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000095017024016710/ownership.xml","form_type":"4"}},{"id":1637517,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Stock Option (Right to Buy)","published_at":"2024-02-17T02:42:07.000Z","date":"2024-02-14","kind":"grant","planned":true,"acquired":true,"shares":822580,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The option will vest, if at all, in two substantially equal installments upon achievement of a 30-day trailing average public market closing price per share of the Issuer's common stock greater than or equal to $3.00 and $5.00, respectively."}],"balance_after":822580,"derivative":{"exercise_price":1.1,"expiration_date":"2034-02-13","underlying":"Common Stock","underlying_shares":822580},"source":{"system":"sec-edgar","filing":"0000950170-24-016710","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000095017024016710/ownership.xml","form_type":"4"}},{"id":1637516,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Stock Option (Right to Buy)","published_at":"2024-02-17T02:42:07.000Z","date":"2024-02-14","kind":"grant","planned":true,"acquired":true,"shares":637500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option will vest as to 25% of the shares on February 14, 2025. 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These shares were sold in multiple transactions at prices ranging from $1.08 to $1.1101, inclusive.  The reporting person undertakes 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 set forth in this footnote."}],"balance_after":135321,"source":{"system":"sec-edgar","filing":"0000950170-24-016710","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000095017024016710/ownership.xml","form_type":"4"}},{"id":1637514,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Common Stock","published_at":"2024-02-17T02:42:07.000Z","date":"2024-02-15","kind":"exercise","planned":true,"acquired":true,"shares":31250,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."}],"balance_after":146870,"source":{"system":"sec-edgar","filing":"0000950170-24-016710","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000095017024016710/ownership.xml","form_type":"4"}},{"id":1753012,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Restricted Stock Units","published_at":"2023-11-01T01:40:56.000Z","date":"2023-10-27","kind":"exercise","planned":true,"acquired":false,"shares":27838,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each RSU represents a contingent right to receive one share of Issuer common stock.  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The remaining 27,837 RSUs shall vest on October 27, 2024, the date that is eighteen months from the Initial Milestone Date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On February 3, 2023, the reporting person was granted an award of 55,675 restricted stock units (\"RSUs\"), which vest in the form of shares of the Issuer's common stock in two substantially equal installments upon the satisfaction of certain performance criteria.  On April 27, 2023 (the \"Initial Milestone Date\"), the Issuer's Administrator determined that the performance criteria for the first installment were met, resulting in the vesting and settlement of the award as to 27,838 RSUs on October 27, 2023, the date that was six months from the Initial Milestone Date.  The remaining 27,837 RSUs shall vest on October 27, 2024, the date that is eighteen months from the Initial Milestone Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Each RSU represents a contingent right to receive one share of Issuer common stock.  The RSUs do not have an expiration date."}],"balance_after":27837,"derivative":{"underlying":"Common Stock","underlying_shares":27838},"source":{"system":"sec-edgar","filing":"0000899243-23-020080","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000089924323020080/doc4.xml","form_type":"4"}},{"id":1753011,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Restricted Stock Units","published_at":"2023-11-01T01:40:56.000Z","date":"2023-04-27","kind":"grant","planned":true,"acquired":true,"shares":55675,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each RSU represents a contingent right to receive one share of Issuer common stock.  The RSUs do not have an expiration date."},{"field":"shares","element":"transactionShares","label":"F1","text":"On February 3, 2023, the reporting person was granted an award of 55,675 restricted stock units (\"RSUs\"), which vest in the form of shares of the Issuer's common stock in two substantially equal installments upon the satisfaction of certain performance criteria.  On April 27, 2023 (the \"Initial Milestone Date\"), the Issuer's Administrator determined that the performance criteria for the first installment were met, resulting in the vesting and settlement of the award as to 27,838 RSUs on October 27, 2023, the date that was six months from the Initial Milestone Date.  The remaining 27,837 RSUs shall vest on October 27, 2024, the date that is eighteen months from the Initial Milestone Date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On February 3, 2023, the reporting person was granted an award of 55,675 restricted stock units (\"RSUs\"), which vest in the form of shares of the Issuer's common stock in two substantially equal installments upon the satisfaction of certain performance criteria.  On April 27, 2023 (the \"Initial Milestone Date\"), the Issuer's Administrator determined that the performance criteria for the first installment were met, resulting in the vesting and settlement of the award as to 27,838 RSUs on October 27, 2023, the date that was six months from the Initial Milestone Date.  The remaining 27,837 RSUs shall vest on October 27, 2024, the date that is eighteen months from the Initial Milestone Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Each RSU represents a contingent right to receive one share of Issuer common stock.  The RSUs do not have an expiration date."}],"balance_after":55675,"derivative":{"underlying":"Common Stock","underlying_shares":55675},"source":{"system":"sec-edgar","filing":"0000899243-23-020080","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000089924323020080/doc4.xml","form_type":"4"}},{"id":1753010,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Common Stock","published_at":"2023-11-01T01:40:56.000Z","date":"2023-10-30","kind":"sale","planned":true,"acquired":false,"shares":8552,"price":1.35,"value":11545.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 4, 2023, solely with the intent to cover taxes in connection with the vesting of the RSUs."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in column 4 is a weighted average of the price.  These shares were sold in multiple transactions at prices ranging from $1.35 to $1.385, inclusive.  The reporting person undertakes 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 set forth in this footnote."}],"balance_after":115620,"source":{"system":"sec-edgar","filing":"0000899243-23-020080","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000089924323020080/doc4.xml","form_type":"4"}},{"id":1753009,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Common Stock","published_at":"2023-11-01T01:40:56.000Z","date":"2023-10-27","kind":"exercise","planned":true,"acquired":true,"shares":27838,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On February 3, 2023, the reporting person was granted an award of 55,675 restricted stock units (\"RSUs\"), which vest in the form of shares of the Issuer's common stock in two substantially equal installments upon the satisfaction of certain performance criteria.  On April 27, 2023 (the \"Initial Milestone Date\"), the Issuer's Administrator determined that the performance criteria for the first installment were met, resulting in the vesting and settlement of the award as to 27,838 RSUs on October 27, 2023, the date that was six months from the Initial Milestone Date.  The remaining 27,837 RSUs shall vest on October 27, 2024, the date that is eighteen months from the Initial Milestone Date."}],"balance_after":124172,"source":{"system":"sec-edgar","filing":"0000899243-23-020080","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000089924323020080/doc4.xml","form_type":"4"}},{"id":1809507,"issuer":{"id":11481,"kind":"organization","name":"Sigilon Therapeutics, Inc.","symbol":"SGTX"},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2023-08-11T20:10:31.000Z","date":"2023-08-11","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":683,"price":4.9984,"value":3413.9072,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Effective May 22, 2023, the Issuer effected a 1-for-13 reverse stock split (the \"Reverse Split\") of its issued and outstanding shares of Common Stock. Cash was paid in lieu of any fractional shares resulting from the Reverse Split. The Reporting Person's beneficial ownership in this Form 4 has been adjusted for the Reverse Split."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Pursuant to the Merger Agreement, these stock options were cancelled and the Reporting Person was entitled to receive (without interest) (x) an amount in cash (less applicable Tax withholdings) equal to the product of (A) the total number of Shares subject to such option immediately prior to the Acceptance Time multiplied by (B) the excess, if any, of the Closing Amount over the applicable exercise price per Share under such option and (y) one Contingent Value Right per Share subject to such stock option immediately prior to the Acceptance Time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Pursuant to the Merger Agreement, these stock options were cancelled and the Reporting Person was entitled to receive (without interest) (x) an amount in cash (less applicable Tax withholdings) equal to the product of (A) the total number of Shares subject to such option immediately prior to the Acceptance Time multiplied by (B) the excess, if any, of the Closing Amount over the applicable exercise price per Share under such option and (y) one Contingent Value Right per Share subject to such stock option immediately prior to the Acceptance Time."}],"balance_after":0,"derivative":{"exercise_price":9.9216,"expiration_date":"2032-05-25","underlying":"Common Stock","underlying_shares":683},"source":{"system":"sec-edgar","filing":"0001415889-23-012132","document":"form4-08112023_040813.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1643734/000141588923012132/form4-08112023_040813.xml","form_type":"4"}},{"id":1809506,"issuer":{"id":11481,"kind":"organization","name":"Sigilon Therapeutics, Inc.","symbol":"SGTX"},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2023-08-11T20:10:31.000Z","date":"2023-08-11","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":683,"price":6.6439,"value":4537.7837,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Effective May 22, 2023, the Issuer effected a 1-for-13 reverse stock split (the \"Reverse Split\") of its issued and outstanding shares of Common Stock. Cash was paid in lieu of any fractional shares resulting from the Reverse Split. The Reporting Person's beneficial ownership in this Form 4 has been adjusted for the Reverse Split."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Pursuant to the Merger Agreement, these stock options were cancelled and the Reporting Person was entitled to receive (without interest) (x) an amount in cash (less applicable Tax withholdings) equal to the product of (A) the total number of Shares subject to such option immediately prior to the Acceptance Time multiplied by (B) the excess, if any, of the Closing Amount over the applicable exercise price per Share under such option and (y) one Contingent Value Right per Share subject to such stock option immediately prior to the Acceptance Time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Pursuant to the Merger Agreement, these stock options were cancelled and the Reporting Person was entitled to receive (without interest) (x) an amount in cash (less applicable Tax withholdings) equal to the product of (A) the total number of Shares subject to such option immediately prior to the Acceptance Time multiplied by (B) the excess, if any, of the Closing Amount over the applicable exercise price per Share under such option and (y) one Contingent Value Right per Share subject to such stock option immediately prior to the Acceptance Time."}],"balance_after":0,"derivative":{"exercise_price":8.2761,"expiration_date":"2033-05-18","underlying":"Common Stock","underlying_shares":683},"source":{"system":"sec-edgar","filing":"0001415889-23-012132","document":"form4-08112023_040813.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1643734/000141588923012132/form4-08112023_040813.xml","form_type":"4"}},{"id":1882078,"issuer":{"id":11481,"kind":"organization","name":"Sigilon Therapeutics, Inc.","symbol":"SGTX"},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2023-05-22T20:20:16.000Z","date":"2023-05-19","kind":"grant","planned":false,"acquired":true,"shares":8888,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option was issued pursuant to the Sigilon Therapeutics, Inc. 2020 Equity Incentive Plan. The option will vest as to 100% on May 19, 2024."}],"balance_after":8888,"derivative":{"exercise_price":0.6366,"expiration_date":"2033-05-18","underlying":"Common Stock","underlying_shares":8888},"source":{"system":"sec-edgar","filing":"0001415889-23-008493","document":"form4-05222023_040505.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1643734/000141588923008493/form4-05222023_040505.xml","form_type":"4"}},{"id":2027998,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"Stock Option (Right to Buy)","published_at":"2023-02-07T22:45:04.000Z","date":"2023-02-03","kind":"grant","acquired":true,"shares":250000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option will vest as to 25% of the shares on February 3, 2024. 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The remainder of the restricted stock units will vest and settle in 12 equal quarterly installments thereafter."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units will vest and settle as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units will vest and settle in 12 equal quarterly installments thereafter."}],"balance_after":125000,"derivative":{"underlying":"Common Stock","underlying_shares":125000},"source":{"system":"sec-edgar","filing":"0000899243-23-004206","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000089924323004206/doc4.xml","form_type":"4"}},{"id":2211306,"issuer":{"id":7191,"kind":"organization","name":"Seres Therapeutics, Inc."},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and President"}}],"security":"COMMON STOCK","published_at":"2022-07-06T23:21:15.000Z","date":"2022-07-05","kind":"grant","acquired":true,"shares":63492,"price":3.15,"value":199999.8,"ownership":{"direct":true},"balance_after":96334,"source":{"system":"sec-edgar","filing":"0000899243-22-025509","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1609809/000089924322025509/doc4.xml","form_type":"4"}},{"id":2252709,"issuer":{"id":11481,"kind":"organization","name":"Sigilon Therapeutics, Inc.","symbol":"SGTX"},"owners":[{"id":22047,"kind":"person","name":"Shaff Eric D.","position":1,"cik":"0001643734","reported_name":"Shaff Eric D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2022-05-27T21:01:28.000Z","date":"2022-05-26","kind":"grant","acquired":true,"shares":8888,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option was issued pursuant to the Sigilon Therapeutics, Inc. 2020 Equity Incentive Plan. 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