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Each restricted stock unit represents a contingent right to receive one share of Repligen Corporation's Common Stock. The restricted stock units vest on the earlier of May 14, 2027, one year from the grant date, or the date of the next annual meeting of the Company's shareholders, which has not yet been determined. The restricted stock units may be settled only by delivering shares of Repligen Corporation's Common Stock, and thus, the grant is being reported in Table 1 as allowed per SEC guidance."}],"balance_after":3011,"source":{"system":"sec-edgar","filing":"0001193125-26-228886","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/730272/000119312526228886/ownership.xml","form_type":"4"}},{"id":1144316,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":46695,"kind":"person","name":"Pax Margaret","position":1,"cik":"0001999772","reported_name":"Pax Margaret","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-05-19T18:59:34.000Z","date":"2025-05-15","kind":"grant","planned":false,"acquired":true,"shares":1800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Award vests in full on the earlier of May 15, 2026, one year from grant date, or on the date of the next annual meeting of the Company's shareholders, which has not yet been determined."}],"balance_after":1800,"derivative":{"exercise_price":123.26,"exercise_date":"2026-05-15","expiration_date":"2035-05-15","underlying":"Common Stock","underlying_shares":1800},"source":{"system":"sec-edgar","filing":"0000950170-25-074216","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/730272/000095017025074216/ownership.xml","form_type":"4"}},{"id":1144315,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":46695,"kind":"person","name":"Pax Margaret","position":1,"cik":"0001999772","reported_name":"Pax Margaret","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-05-19T18:59:34.000Z","date":"2025-05-15","kind":"grant","planned":false,"acquired":true,"shares":973,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Ms. Pax was awarded 973 restricted stock units. Each restricted stock unit represents a contingent right to receive one share of Repligen Corporation's Common Stock. The restricted stock units vest on the earlier of May 15, 2026, one year from the grant date, or the date of the next annual meeting of the Company's shareholders, which has not yet been determined. The restricted stock units may be settled only by delivering shares of Repligen Corporation's Common Stock, and thus, the grant is being reported in Table 1 as allowed per SEC guidance."}],"balance_after":2016,"source":{"system":"sec-edgar","filing":"0000950170-25-074216","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/730272/000095017025074216/ownership.xml","form_type":"4"}},{"id":1202583,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":46695,"kind":"person","name":"Pax Margaret","position":1,"cik":"0001999772","reported_name":"Pax Margaret","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-18T19:58:05.000Z","date":"2025-03-17","kind":"purchase","planned":false,"acquired":true,"shares":250,"price":150.69,"value":37672.5,"ownership":{"direct":true},"balance_after":1043,"source":{"system":"sec-edgar","filing":"0000950170-25-041119","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/730272/000095017025041119/ownership.xml","form_type":"4"}},{"id":1403408,"issuer":{"id":11664,"kind":"organization","name":"ALIMERA SCIENCES INC","symbol":"ALIM"},"owners":[{"id":46695,"kind":"person","name":"Pax Margaret","position":1,"cik":"0001999772","reported_name":"Pax Margaret","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2024-09-18T21:53:22.000Z","date":"2024-09-16","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":36713,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to the terms of the Agreement and Plan of Merger, dated as of June 21, 2024 (the \"Merger Agreement\"), by and among the Issuer, ANI Pharmaceuticals, Inc., a Delaware corporation (\"Parent\") and ANIP Merger Sub INC., a Delaware corporation and a wholly owned indirect subsidiary of Parent, as of the effective time of the merger (the \"Effective Time\"), at the Effective Time, each stock option granted by the Issuer to purchase shares (each, an \"Option\") that was outstanding and unvested immediately prior to the Effective Time vested in full, and each Option that was outstanding and unexercised which had a per share exercise price that was less than ) $5.50 in cash, without interest (such amount, the \"Closing Cash Consideration\") was converted into the right to receive the sum of an amount in cash (without interest and subject to deduction for any required withholding as contemplated in the Merger Agreement) equal to:"},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(A) the excess, if any, of the Closing Cash Consideration over the exercise price per share of such Option; multiplied by the number of shares underlying such Option and (B) one contingent value right (\"CVR\") representing the right to receive contingent cash payments subject to the achievement of certain milestones and the terms and conditions set forth in a contingent value rights agreement entered into between Parent and a rights agent."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Pursuant to the terms of the Agreement and Plan of Merger, dated as of June 21, 2024 (the \"Merger Agreement\"), by and among the Issuer, ANI Pharmaceuticals, Inc., a Delaware corporation (\"Parent\") and ANIP Merger Sub INC., a Delaware corporation and a wholly owned indirect subsidiary of Parent, as of the effective time of the merger (the \"Effective Time\"), at the Effective Time, each stock option granted by the Issuer to purchase shares (each, an \"Option\") that was outstanding and unvested immediately prior to the Effective Time vested in full, and each Option that was outstanding and unexercised which had a per share exercise price that was less than ) $5.50 in cash, without interest (such amount, the \"Closing Cash Consideration\") was converted into the right to receive the sum of an amount in cash (without interest and subject to deduction for any required withholding as contemplated in the Merger Agreement) equal to:"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(A) the excess, if any, of the Closing Cash Consideration over the exercise price per share of such Option; multiplied by the number of shares underlying such Option and (B) one contingent value right (\"CVR\") representing the right to receive contingent cash payments subject to the achievement of certain milestones and the terms and conditions set forth in a contingent value rights agreement entered into between Parent and a rights agent."}],"balance_after":0,"derivative":{"exercise_price":3.42,"expiration_date":"2033-11-06","underlying":"Common Stock","underlying_shares":36713},"source":{"system":"sec-edgar","filing":"0001104659-24-101111","document":"tm2424353-8_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1267602/000110465924101111/tm2424353-8_4seq1.xml","form_type":"4"}},{"id":1510033,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":46695,"kind":"person","name":"Pax Margaret","position":1,"cik":"0001999772","reported_name":"Pax Margaret","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2024-05-20T23:30:31.000Z","date":"2024-05-16","kind":"grant","planned":false,"acquired":true,"shares":1376,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Award vests in full on the earlier of May 16, 2025, one year from grant date, or on the date of the next annual meeting of the Company's shareholders, which has not yet been determined."}],"balance_after":1376,"derivative":{"exercise_price":171.03,"exercise_date":"2025-05-16","expiration_date":"2034-05-16","underlying":"Common Stock","underlying_shares":1376},"source":{"system":"sec-edgar","filing":"0000950170-24-062616","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/730272/000095017024062616/ownership.xml","form_type":"4"}},{"id":1510032,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":46695,"kind":"person","name":"Pax Margaret","position":1,"cik":"0001999772","reported_name":"Pax Margaret","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-05-20T23:30:31.000Z","date":"2024-05-16","kind":"grant","planned":false,"acquired":true,"shares":701,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Ms. Pax was awarded 701 restricted stock units. Each restricted stock unit represents a contingent right to receive one share of Repligen Corporation's Common Stock. The restricted stock units vest on the earlier of May 16, 2025, one year from the grant date, or the date of the next annual meeting of the Company's shareholders, which has not yet been determined. The restricted stock units may be settled only by delivering shares of Repligen Corporation's Common Stock, and thus, the grant is being reported in Table 1 as allowed per SEC guidance."}],"balance_after":793,"source":{"system":"sec-edgar","filing":"0000950170-24-062616","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/730272/000095017024062616/ownership.xml","form_type":"4"}},{"id":1571287,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":46695,"kind":"person","name":"Pax Margaret","position":1,"cik":"0001999772","reported_name":"Pax Margaret","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2024-03-19T22:19:33.000Z","date":"2024-03-18","kind":"grant","planned":false,"acquired":true,"shares":2236,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The shares vest in equal annual instalments over a three-year period with each such vesting date occurring on the earlier of the anniversary of the grant date or the date of the annual meeting of the Company's shareholders of the applicable year of such three-year period."}],"balance_after":2236,"derivative":{"exercise_price":194.25,"exercise_date":"2025-03-18","expiration_date":"2034-03-18","underlying":"Common Stock","underlying_shares":2236},"source":{"system":"sec-edgar","filing":"0000950170-24-033756","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/730272/000095017024033756/ownership.xml","form_type":"4"}},{"id":1571286,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":46695,"kind":"person","name":"Pax Margaret","position":1,"cik":"0001999772","reported_name":"Pax Margaret","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2024-03-19T22:19:33.000Z","date":"2024-03-18","kind":"grant","planned":false,"acquired":true,"shares":195,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Award vests in full on May 16, 2024, the date of the annual meeting of the Company's shareholders."}],"balance_after":195,"derivative":{"exercise_price":194.25,"exercise_date":"2024-05-16","expiration_date":"2034-03-18","underlying":"Common Stock","underlying_shares":195},"source":{"system":"sec-edgar","filing":"0000950170-24-033756","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/730272/000095017024033756/ownership.xml","form_type":"4"}},{"id":1571285,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":46695,"kind":"person","name":"Pax Margaret","position":1,"cik":"0001999772","reported_name":"Pax Margaret","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-03-19T22:19:33.000Z","date":"2024-03-18","kind":"grant","planned":false,"acquired":true,"shares":92,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Ms. Pax was awarded 92 restricted stock units. Each restricted stock unit represents a contingent right to receive one share of Repligen Corporation's Common Stock. The restricted stock units vest on May 16, 2024, the date of the annual meeting of the Company's shareholders. The restricted stock units may be settled only by delivering shares of Repligen Corporation's Common Stock, and thus, the grant is being reported in Table 1 as allowed per SEC guidance."}],"balance_after":92,"source":{"system":"sec-edgar","filing":"0000950170-24-033756","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/730272/000095017024033756/ownership.xml","form_type":"4"}},{"id":1746627,"issuer":{"id":11664,"kind":"organization","name":"ALIMERA SCIENCES INC","symbol":"ALIM"},"owners":[{"id":46695,"kind":"person","name":"Pax Margaret","position":1,"cik":"0001999772","reported_name":"Pax Margaret","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2023-11-08T18:58:14.000Z","date":"2023-11-07","kind":"grant","planned":false,"acquired":true,"shares":36713,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests and becomes exercisable in equal monthly installments beginning on November 7, 2023. Vests in full on the earlier of August 1, 2024 or the date of the Issuer's 2024 annual meeting of stockholders, provided the Reporting Person provides continuous service to the Issuer through such date, with the final installment adjusted as necessary to avoid any fractional shares in any installment."}],"balance_after":36713,"derivative":{"exercise_price":3.42,"expiration_date":"2033-11-06","underlying":"Common Stock","underlying_shares":36713},"source":{"system":"sec-edgar","filing":"0000950170-23-061355","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1267602/000095017023061355/ownership.xml","form_type":"4"}}]}