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Dr. Parmar is a director of the Issuer and files separate Section 16 reports."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Shares are held directly by Opportunities I."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001209191-22-059372","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1722271/000120919122059372/doc4.xml","form_type":"4"}},{"id":2098370,"issuer":{"id":11574,"kind":"organization","name":"Akouos, Inc.","symbol":"AKUS"},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":5,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":6,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-12-02T15:38:15.000Z","date":"2022-11-30","kind":"other","acquired":false,"shares":3153333,"ownership":{"direct":false,"nature":"By 5AM Ventures V, L.P."},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Pursuant to the terms of that certain Agreement and Plan of Merger (the \"Merger Agreement\"), by and among the Issuer, Eli Lilly and Company (\"Parent\") and Kearny Acquisition Corporation (\"Merger Sub\"), dated as of October 17, 2022, these shares of common stock, par value $0.0001 per share, of the Issuer (\"Shares\") were tendered prior to the Expiration Date (as defined in the Merger Agreement) and disposed of at the Acceptance Time (as defined in the Merger Agreement) in exchange for..."},{"field":"shares","element":"transactionShares","label":"F2","text":"(cont. from footnote 1)...(i) $12.50 per Share, net to the stockholder in cash, without interest (the \"Cash Consideration\") and less any applicable tax withholding, plus (ii) one non-tradable contingent value right (\"CVR\")  per Share, which represents the contractual right to receive contingent payments of up to $3.00 per CVR, net to the stockholder in cash, without interest and less any applicable tax withholding, upon the achievement of certain specified milestones in accordance with the terms and subject to the conditions of a Contingent Value Rights Agreement, dated as of November 30, 2022, by and among Parent, Merger Sub, Computershare Inc. and Computershare Trust Company, N.A."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to the terms of that certain Agreement and Plan of Merger (the \"Merger Agreement\"), by and among the Issuer, Eli Lilly and Company (\"Parent\") and Kearny Acquisition Corporation (\"Merger Sub\"), dated as of October 17, 2022, these shares of common stock, par value $0.0001 per share, of the Issuer (\"Shares\") were tendered prior to the Expiration Date (as defined in the Merger Agreement) and disposed of at the Acceptance Time (as defined in the Merger Agreement) in exchange for..."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held directly by 5AM Ventures V, L.P. (\"Ventures V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"5AM Partners V, LLC (\"Partners V\") is the general partner of Ventures V and may be deemed to have sole investment and voting power over the shares held by Ventures V. Each of Andrew Schwab, Dr. Kush Parmar and Dr. Scott Rocklage is a Managing Member of Partners V, and may be deemed to have shared voting and dispositive power over the shares held by Ventures V. Therefore, each of Mr. Schwab, Dr. Parmar, Dr. Rocklage, and Partners V may be deemed to beneficially own the shares held by Ventures V. Each of Mr. Schwab, Dr. Rocklage, and Partners V disclaims beneficial ownership over the shares held by Ventures V except to the extent of his or its pecuniary interest therein. Dr. Parmar is a director of the Issuer and files separate Section 16 reports."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001209191-22-059372","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1722271/000120919122059372/doc4.xml","form_type":"4"}},{"id":2240287,"issuer":{"id":6838,"kind":"organization","name":"Rallybio Corp","symbol":"RLYB"},"owners":[{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":1,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":2,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":3,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":4,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":5,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":6,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-06-07T21:02:08.000Z","date":"2022-06-03","kind":"sale","acquired":false,"shares":99671,"price":12.5,"value":1245887.5,"ownership":{"direct":false,"nature":"By 5AM Ventures V, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by 5AM Ventures V, L.P. (\"Ventures V\"). 5AM Partners V, LLC is the general partner of Ventures V and may be deemed to have sole investment and voting power over the shares held by Ventures V. Each of Andrew Schwab, Dr. Kush Parmar and Dr. Scott Rocklage is a Managing Member of 5AM Partners V, LLC, and may be deemed to have shared voting and dispositive power over the shares held by Ventures V. Therefore, each of Andrew  Schwab, Dr. Kush Parmar, Dr. Scott Rocklage, and 5AM Partners V, LLC may be deemed to beneficially own the shares held by Ventures V, and each disclaims beneficial ownership over the shares held by Ventures V except to the extent of his or its pecuniary interest therein. Dr. Parmar is a director of the issuer and files separate Section 16 reports."}],"balance_after":2478969,"source":{"system":"sec-edgar","filing":"0001209191-22-034858","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1739410/000120919122034858/doc4.xml","form_type":"4"}},{"id":2240286,"issuer":{"id":6838,"kind":"organization","name":"Rallybio Corp","symbol":"RLYB"},"owners":[{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":1,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":2,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":3,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":4,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":5,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":6,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-06-07T21:02:08.000Z","date":"2022-06-03","kind":"sale","acquired":false,"shares":50329,"price":12.5,"value":629112.5,"ownership":{"direct":false,"nature":"By 5AM Opportunities I, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Shares are held by 5AM Opportunities I, L.P. 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Dr. Parmar is a director of the issuer and files separate Section 16 reports."}],"balance_after":1251755,"source":{"system":"sec-edgar","filing":"0001209191-22-034858","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1739410/000120919122034858/doc4.xml","form_type":"4"}},{"id":2256844,"issuer":{"id":6838,"kind":"organization","name":"Rallybio Corp","symbol":"RLYB"},"owners":[{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":1,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":2,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":3,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":4,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":5,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":6,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-05-25T22:31:58.000Z","date":"2022-05-23","kind":"sale","acquired":false,"shares":66447,"price":13,"value":863811.0,"ownership":{"direct":false,"nature":"By 5AM Ventures V, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by 5AM Ventures V, L.P. (\"Ventures V\"). 5AM Partners V, LLC is the general partner of Ventures V and may be deemed to have sole investment and voting power over the shares held by Ventures V. Each of Andrew Schwab, Dr. Kush Parmar and Dr. Scott Rocklage is a Managing Member of 5AM Partners V, LLC, and may be deemed to have shared voting and dispositive power over the shares held by Ventures V. Therefore, each of Andrew  Schwab, Dr. Kush Parmar, Dr. Scott Rocklage, and 5AM Partners V, LLC may be deemed to beneficially own the shares held by Ventures V, and each disclaims beneficial ownership over the shares held by Ventures V except to the extent of his or its pecuniary interest therein. Dr. Parmar is a director of the issuer and files separate Section 16 reports."}],"balance_after":2578640,"source":{"system":"sec-edgar","filing":"0001209191-22-031966","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1739410/000120919122031966/doc4.xml","form_type":"4"}},{"id":2256843,"issuer":{"id":6838,"kind":"organization","name":"Rallybio Corp","symbol":"RLYB"},"owners":[{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":1,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":2,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":3,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":4,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":5,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":6,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-05-25T22:31:58.000Z","date":"2022-05-23","kind":"sale","acquired":false,"shares":33553,"price":13,"value":436189.0,"ownership":{"direct":false,"nature":"By 5AM Opportunities I, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Shares are held by 5AM Opportunities I, L.P. 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Dr. Parmar is a director of the issuer and files separate Section 16 reports."}],"balance_after":1302084,"source":{"system":"sec-edgar","filing":"0001209191-22-031966","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1739410/000120919122031966/doc4.xml","form_type":"4"}},{"id":2404544,"issuer":{"id":6838,"kind":"organization","name":"Rallybio Corp","symbol":"RLYB"},"owners":[{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":1,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":2,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":3,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":4,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":5,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":6,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-02-10T23:24:23.000Z","date":"2022-02-08","kind":"sale","acquired":false,"shares":139539,"price":13.05,"value":1820983.95,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by 5AM Ventures V, L.P. (\"Ventures V\"). 5AM Partners V, LLC is the general partner of Ventures V and may be deemed to have sole investment and voting power over the shares held by Ventures V. Each of Andrew Schwab, Dr. Kush Parmar and Dr. Scott Rocklage is a Managing Member of 5AM Partners V, LLC, and may be deemed to have shared voting and dispositive power over the shares held by Ventures V. Therefore, each of Andrew  Schwab, Dr. Kush Parmar, Dr. Scott Rocklage, and 5AM Partners V, LLC may be deemed to beneficially own the shares held by Ventures V, and each disclaims beneficial ownership over the shares held by Ventures V except to the extent of his or its pecuniary interest therein. Dr. Parmar is a director of the issuer and files separate Section 16 reports."}],"balance_after":2645087,"source":{"system":"sec-edgar","filing":"0001209191-22-008584","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1739410/000120919122008584/doc4.xml","form_type":"4"}},{"id":2404543,"issuer":{"id":6838,"kind":"organization","name":"Rallybio Corp","symbol":"RLYB"},"owners":[{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":1,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":2,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":3,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":4,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":5,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":6,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-02-10T23:24:23.000Z","date":"2022-02-08","kind":"sale","acquired":false,"shares":70461,"price":13.05,"value":919516.05,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Shares are held by 5AM Opportunities I, L.P. 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The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On June 30, 2020, the Series B Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On June 30, 2020, the Series B Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"Ventures V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"5AM Partners V, LLC is the general partner of Ventures V and may be deemed to have sole investment and voting power over the shares held by Ventures V. Each of Andrew Schwab, Dr. Kush Parmar and Dr. Scott Rocklage is a Managing Member of 5AM Partners V, LLC, and may be deemed to have shared voting and dispositive power over the shares held by Ventures V. 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The Series A Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"On June 30, 2020, the Series A Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series A Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On June 30, 2020, the Series A Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series A Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"Ventures V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"5AM Partners V, LLC is the general partner of Ventures V and may be deemed to have sole investment and voting power over the shares held by Ventures V. Each of Andrew Schwab, Dr. Kush Parmar and Dr. Scott Rocklage is a Managing Member of 5AM Partners V, LLC, and may be deemed to have shared voting and dispositive power over the shares held by Ventures V. Therefore, each of Andrew Schwab, Dr. Kush Parmar, Dr. Scott Rocklage, and 5AM Partners V, LLC may be deemed to beneficially own the shares held by Ventures V, and each disclaims beneficial ownership over the shares held by Ventures V except to the extent of his or its pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1997946},"source":{"system":"sec-edgar","filing":"0001209191-20-040794","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1722271/000120919120040794/doc4.xml","form_type":"4"}},{"id":3092233,"issuer":{"id":11574,"kind":"organization","name":"Akouos, Inc.","symbol":"AKUS"},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":5,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":6,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series Seed  Preferred Stock","published_at":"2020-07-02T20:50:48.000Z","date":"2020-06-30","kind":"exercise","acquired":false,"shares":10826417,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On June 30, 2020, the Series Seed Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series Seed Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On June 30, 2020, the Series Seed Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series Seed Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On June 30, 2020, the Series Seed Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series Seed Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"Ventures V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"5AM Partners V, LLC is the general partner of Ventures V and may be deemed to have sole investment and voting power over the shares held by Ventures V. Each of Andrew Schwab, Dr. Kush Parmar and Dr. Scott Rocklage is a Managing Member of 5AM Partners V, LLC, and may be deemed to have shared voting and dispositive power over the shares held by Ventures V. Therefore, each of Andrew Schwab, Dr. Kush Parmar, Dr. Scott Rocklage, and 5AM Partners V, LLC may be deemed to beneficially own the shares held by Ventures V, and each disclaims beneficial ownership over the shares held by Ventures V except to the extent of his or its pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":513757},"source":{"system":"sec-edgar","filing":"0001209191-20-040794","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1722271/000120919120040794/doc4.xml","form_type":"4"}},{"id":3092232,"issuer":{"id":11574,"kind":"organization","name":"Akouos, Inc.","symbol":"AKUS"},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":5,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":6,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-07-02T20:50:48.000Z","date":"2020-06-30","kind":"purchase","acquired":true,"shares":294117,"price":17,"value":4999989.0,"ownership":{"direct":false,"nature":"footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"5AM Opportunities I (GP), LLC is the general partner of 5AM Opportunities I, L.P. 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Therefore, each of Andrew Schwab, Dr. Kush Parmar and 5AM Opportunities I (GP), LLC may be deemed to beneficially own the shares held by Opportunities I, and each disclaims beneficial ownership over the shares held by Opportunities I except to the extent of his or its pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"Shares are held directly by Opportunities I."}],"balance_after":1094101,"source":{"system":"sec-edgar","filing":"0001209191-20-040794","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1722271/000120919120040794/doc4.xml","form_type":"4"}},{"id":3092231,"issuer":{"id":11574,"kind":"organization","name":"Akouos, Inc.","symbol":"AKUS"},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":5,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":6,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-07-02T20:50:48.000Z","date":"2020-06-30","kind":"exercise","acquired":true,"shares":799984,"ownership":{"direct":false,"nature":"footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"On June 30, 2020, the Series B Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"5AM Opportunities I (GP), LLC is the general partner of 5AM Opportunities I, L.P. (\"Opportunities I\") and may be deemed to have sole investment and voting power over the shares held by Opportunities I. Each of Andrew Schwab and Dr. Kush Parmar is a Managing Member of 5AM Opportunities I (GP), LLC, and may be deemed to have shared voting and dispositive power over the shares held by Opportunities I. Therefore, each of Andrew Schwab, Dr. Kush Parmar and 5AM Opportunities I (GP), LLC may be deemed to beneficially own the shares held by Opportunities I, and each disclaims beneficial ownership over the shares held by Opportunities I except to the extent of his or its pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"Shares are held directly by Opportunities I."}],"balance_after":799984,"source":{"system":"sec-edgar","filing":"0001209191-20-040794","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1722271/000120919120040794/doc4.xml","form_type":"4"}},{"id":3092230,"issuer":{"id":11574,"kind":"organization","name":"Akouos, Inc.","symbol":"AKUS"},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":5,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":6,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-07-02T20:50:48.000Z","date":"2020-06-30","kind":"exercise","acquired":true,"shares":999980,"ownership":{"direct":false,"nature":"footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"On June 30, 2020, the Series B Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"Ventures V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"5AM Partners V, LLC is the general partner of Ventures V and may be deemed to have sole investment and voting power over the shares held by Ventures V. Each of Andrew Schwab, Dr. Kush Parmar and Dr. Scott Rocklage is a Managing Member of 5AM Partners V, LLC, and may be deemed to have shared voting and dispositive power over the shares held by Ventures V. Therefore, each of Andrew Schwab, Dr. Kush Parmar, Dr. Scott Rocklage, and 5AM Partners V, LLC may be deemed to beneficially own the shares held by Ventures V, and each disclaims beneficial ownership over the shares held by Ventures V except to the extent of his or its pecuniary interest therein."}],"balance_after":3511683,"source":{"system":"sec-edgar","filing":"0001209191-20-040794","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1722271/000120919120040794/doc4.xml","form_type":"4"}},{"id":3092229,"issuer":{"id":11574,"kind":"organization","name":"Akouos, Inc.","symbol":"AKUS"},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":5,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":6,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-07-02T20:50:48.000Z","date":"2020-06-30","kind":"exercise","acquired":true,"shares":1997946,"ownership":{"direct":false,"nature":"footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"On June 30, 2020, the Series A Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series A Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"Ventures V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"5AM Partners V, LLC is the general partner of Ventures V and may be deemed to have sole investment and voting power over the shares held by Ventures V. Each of Andrew Schwab, Dr. Kush Parmar and Dr. Scott Rocklage is a Managing Member of 5AM Partners V, LLC, and may be deemed to have shared voting and dispositive power over the shares held by Ventures V. Therefore, each of Andrew Schwab, Dr. Kush Parmar, Dr. Scott Rocklage, and 5AM Partners V, LLC may be deemed to beneficially own the shares held by Ventures V, and each disclaims beneficial ownership over the shares held by Ventures V except to the extent of his or its pecuniary interest therein."}],"balance_after":2511703,"source":{"system":"sec-edgar","filing":"0001209191-20-040794","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1722271/000120919120040794/doc4.xml","form_type":"4"}},{"id":3092228,"issuer":{"id":11574,"kind":"organization","name":"Akouos, Inc.","symbol":"AKUS"},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":5,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":6,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-07-02T20:50:48.000Z","date":"2020-06-30","kind":"exercise","acquired":true,"shares":513757,"ownership":{"direct":false,"nature":"footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On June 30, 2020, the Series Seed Preferred Stock converted into Common Stock on a 21.073-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series Seed Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"Ventures V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"5AM Partners V, LLC is the general partner of Ventures V and may be deemed to have sole investment and voting power over the shares held by Ventures V. Each of Andrew Schwab, Dr. Kush Parmar and Dr. Scott Rocklage is a Managing Member of 5AM Partners V, LLC, and may be deemed to have shared voting and dispositive power over the shares held by Ventures V. Therefore, each of Andrew Schwab, Dr. Kush Parmar, Dr. Scott Rocklage, and 5AM Partners V, LLC may be deemed to beneficially own the shares held by Ventures V, and each disclaims beneficial ownership over the shares held by Ventures V except to the extent of his or its pecuniary interest therein."}],"balance_after":513757,"source":{"system":"sec-edgar","filing":"0001209191-20-040794","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1722271/000120919120040794/doc4.xml","form_type":"4"}},{"id":3384654,"issuer":{"id":5418,"kind":"organization","name":"Cabaletta Bio, Inc."},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21276,"kind":"person","name":"PARMAR KUSH","position":5,"cik":"0001664281","reported_name":"PARMAR KUSH","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":6,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":7,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Preferred Stock","published_at":"2019-10-31T22:03:28.000Z","date":"2019-10-29","kind":"exercise","acquired":false,"shares":1675532,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These shares of Series A Preferred Stock and Series B Preferred Stock (collectively, \"Preferred Stock\") automatically converted into shares of the Issuer's Voting Common Stock (\"Common Stock\"), on a 1-for-1.5 basis, immediately prior to the completion of the Issuer's initial public offering for no additional consideration.  The Preferred Stock had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These shares of Series A Preferred Stock and Series B Preferred Stock (collectively, \"Preferred Stock\") automatically converted into shares of the Issuer's Voting Common Stock (\"Common Stock\"), on a 1-for-1.5 basis, immediately prior to the completion of the Issuer's initial public offering for no additional consideration.  The Preferred Stock had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These shares of Series A Preferred Stock and Series B Preferred Stock (collectively, \"Preferred Stock\") automatically converted into shares of the Issuer's Voting Common Stock (\"Common Stock\"), on a 1-for-1.5 basis, immediately prior to the completion of the Issuer's initial public offering for no additional consideration.  The Preferred Stock had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These shares of Series A Preferred Stock and Series B Preferred Stock (collectively, \"Preferred Stock\") automatically converted into shares of the Issuer's Voting Common Stock (\"Common Stock\"), on a 1-for-1.5 basis, immediately prior to the completion of the Issuer's initial public offering for no additional consideration.  The Preferred Stock had no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"5AM V\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"5AM Partners V, LLC (\"5AM Partners\") is the sole general partner of 5AM V.  Dr. Kush Parmar, Andrew J. Schwab and Dr. Scott M. Rocklage are managing members of 5AM Partners and may be deemed to have shared voting and investment power over the shares beneficially owned by 5AM V.  Each of 5AM Partners, Dr. Parmar, Mr. Schwab and Dr. Rocklage disclaims beneficial ownership of the shares of Preferred Stock held directly by 5AM V, except to the extent of its or his pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"5AM V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"5AM Partners V, LLC (\"5AM Partners\") is the sole general partner of 5AM V.  Dr. Kush Parmar, Andrew J. Schwab and Dr. Scott M. Rocklage are managing members of 5AM Partners and may be deemed to have shared voting and investment power over the shares beneficially owned by 5AM V.  Each of 5AM Partners, Dr. Parmar, Mr. Schwab and Dr. Rocklage disclaims beneficial ownership of the shares of Preferred Stock held directly by 5AM V, except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1117021},"source":{"system":"sec-edgar","filing":"0001104659-19-058504","document":"a4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1759138/000110465919058504/a4.xml","form_type":"4"}},{"id":3384653,"issuer":{"id":5418,"kind":"organization","name":"Cabaletta Bio, Inc."},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21276,"kind":"person","name":"PARMAR KUSH","position":5,"cik":"0001664281","reported_name":"PARMAR KUSH","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":6,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":7,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Preferred Stock","published_at":"2019-10-31T22:03:28.000Z","date":"2019-10-29","kind":"exercise","acquired":false,"shares":3146551,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These shares of Series A Preferred Stock and Series B Preferred Stock (collectively, \"Preferred Stock\") automatically converted into shares of the Issuer's Voting Common Stock (\"Common Stock\"), on a 1-for-1.5 basis, immediately prior to the completion of the Issuer's initial public offering for no additional consideration.  The Preferred Stock had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These shares of Series A Preferred Stock and Series B Preferred Stock (collectively, \"Preferred Stock\") automatically converted into shares of the Issuer's Voting Common Stock (\"Common Stock\"), on a 1-for-1.5 basis, immediately prior to the completion of the Issuer's initial public offering for no additional consideration.  The Preferred Stock had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These shares of Series A Preferred Stock and Series B Preferred Stock (collectively, \"Preferred Stock\") automatically converted into shares of the Issuer's Voting Common Stock (\"Common Stock\"), on a 1-for-1.5 basis, immediately prior to the completion of the Issuer's initial public offering for no additional consideration.  The Preferred Stock had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These shares of Series A Preferred Stock and Series B Preferred Stock (collectively, \"Preferred Stock\") automatically converted into shares of the Issuer's Voting Common Stock (\"Common Stock\"), on a 1-for-1.5 basis, immediately prior to the completion of the Issuer's initial public offering for no additional consideration.  The Preferred Stock had no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"5AM V\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"5AM Partners V, LLC (\"5AM Partners\") is the sole general partner of 5AM V.  Dr. Kush Parmar, Andrew J. Schwab and Dr. Scott M. Rocklage are managing members of 5AM Partners and may be deemed to have shared voting and investment power over the shares beneficially owned by 5AM V.  Each of 5AM Partners, Dr. Parmar, Mr. Schwab and Dr. Rocklage disclaims beneficial ownership of the shares of Preferred Stock held directly by 5AM V, except to the extent of its or his pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"5AM V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"5AM Partners V, LLC (\"5AM Partners\") is the sole general partner of 5AM V.  Dr. Kush Parmar, Andrew J. Schwab and Dr. Scott M. Rocklage are managing members of 5AM Partners and may be deemed to have shared voting and investment power over the shares beneficially owned by 5AM V.  Each of 5AM Partners, Dr. Parmar, Mr. Schwab and Dr. Rocklage disclaims beneficial ownership of the shares of Preferred Stock held directly by 5AM V, except to the extent of its or his pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":2097700},"source":{"system":"sec-edgar","filing":"0001104659-19-058504","document":"a4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1759138/000110465919058504/a4.xml","form_type":"4"}},{"id":3384652,"issuer":{"id":5418,"kind":"organization","name":"Cabaletta Bio, Inc."},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21276,"kind":"person","name":"PARMAR KUSH","position":5,"cik":"0001664281","reported_name":"PARMAR KUSH","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":6,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":7,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-10-31T22:03:28.000Z","date":"2019-10-29","kind":"purchase","acquired":true,"shares":454545,"price":11,"value":4999995.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F4","text":"Shares are held directly by 5AM Opportunities I, L.P. (\"Opportunities\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F5","text":"5AM Opportunities I (GP), LLC (\"Opportunities GP\") is the sole general partner of Opportunities.  Andrew J. Schwab and Dr. Kush Parmar are managing members of Opportunities GP and may be deemed to have shared voting and investment power over the shares beneficially owned by Opportunities.  Each of Opportunities GP, Mr. Schwab and Dr. Parmar disclaims beneficial ownership of the shares of Common Stock held directly by Opportunities, except to the extent of its or his pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Shares are held directly by 5AM Opportunities I, L.P. (\"Opportunities\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"5AM Opportunities I (GP), LLC (\"Opportunities GP\") is the sole general partner of Opportunities.  Andrew J. Schwab and Dr. Kush Parmar are managing members of Opportunities GP and may be deemed to have shared voting and investment power over the shares beneficially owned by Opportunities.  Each of Opportunities GP, Mr. Schwab and Dr. Parmar disclaims beneficial ownership of the shares of Common Stock held directly by Opportunities, except to the extent of its or his pecuniary interest therein."}],"balance_after":454545,"source":{"system":"sec-edgar","filing":"0001104659-19-058504","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1759138/000110465919058504/a4.xml","form_type":"4"}},{"id":3384651,"issuer":{"id":5418,"kind":"organization","name":"Cabaletta Bio, Inc."},"owners":[{"id":25023,"kind":"organization","name":"5AM Ventures V, L.P.","position":1,"cik":"0001674324","reported_name":"5AM Ventures V, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25024,"kind":"organization","name":"5AM Partners V, LLC","position":2,"cik":"0001791889","reported_name":"5AM Partners V, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25025,"kind":"organization","name":"5AM Opportunities I, L.P.","position":3,"cik":"0001753000","reported_name":"5AM Opportunities I, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":25026,"kind":"organization","name":"5AM Opportunities I (GP), LLC","position":4,"cik":"0001790778","reported_name":"5AM Opportunities I (GP), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21276,"kind":"person","name":"PARMAR KUSH","position":5,"cik":"0001664281","reported_name":"PARMAR KUSH","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21277,"kind":"person","name":"ROCKLAGE SCOTT M","position":6,"cik":"0001219014","reported_name":"ROCKLAGE SCOTT M","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18314,"kind":"person","name":"Schwab Andrew J.","position":7,"cik":"0001598549","reported_name":"Schwab Andrew J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-10-31T22:03:28.000Z","date":"2019-10-29","kind":"exercise","acquired":true,"shares":3214721,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These shares of Series A Preferred Stock and Series B Preferred Stock (collectively, \"Preferred Stock\") automatically converted into shares of the Issuer's Voting Common Stock (\"Common Stock\"), on a 1-for-1.5 basis, immediately prior to the completion of the Issuer's initial public offering for no additional consideration.  The Preferred Stock had no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"5AM V\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"5AM Partners V, LLC (\"5AM Partners\") is the sole general partner of 5AM V.  Dr. Kush Parmar, Andrew J. Schwab and Dr. Scott M. Rocklage are managing members of 5AM Partners and may be deemed to have shared voting and investment power over the shares beneficially owned by 5AM V.  Each of 5AM Partners, Dr. Parmar, Mr. Schwab and Dr. Rocklage disclaims beneficial ownership of the shares of Preferred Stock held directly by 5AM V, except to the extent of its or his pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held directly by 5AM Ventures V, L.P. (\"5AM V\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"5AM Partners V, LLC (\"5AM Partners\") is the sole general partner of 5AM V.  Dr. Kush Parmar, Andrew J. Schwab and Dr. Scott M. Rocklage are managing members of 5AM Partners and may be deemed to have shared voting and investment power over the shares beneficially owned by 5AM V.  Each of 5AM Partners, Dr. Parmar, Mr. Schwab and Dr. Rocklage disclaims beneficial ownership of the shares of Preferred Stock held directly by 5AM V, except to the extent of its or his pecuniary interest therein."}],"balance_after":3214721,"source":{"system":"sec-edgar","filing":"0001104659-19-058504","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1759138/000110465919058504/a4.xml","form_type":"4"}}]}