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The shares were valued at $42.07 per share for purposes of determining the amount of the exchange fund interest received by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The transaction involved the contribution by the reporting person of shares of the Issuer to an exchange fund in exchange for an interest in the exchange fund.  The shares were valued at $42.07 per share for purposes of determining the amount of the exchange fund interest received by the reporting person."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The shares shown are held of record by the Roy T. 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The shares were sold in multiple transactions at prices ranging from $40.5515 to $41.0078, inclusive.  The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the price ranges set forth in this footnote (1) and in footnotes (3) - (5)  to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The shares shown are held, of record, by a charitable remainder unitrust of which the reporting person is the sole trustee and, as such, has investment and voting control over such shares, and is a lifetime beneficiary.  The reporting person disclaims as beneficial ownership of the shares except to the extent of his pecuniary interest therein."}],"balance_after":850773,"source":{"system":"sec-edgar","filing":"0001250853-18-000075","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/730272/000125085318000075/primary_doc.xml","form_type":"4/A","original_submission_date":"2018-05-09"}},{"id":3941985,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":139645,"kind":"person","name":"EDDLEMAN ROY T","position":1,"cik":"0001270264","reported_name":"EDDLEMAN ROY T","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-05-09T22:59:33.000Z","date":"2018-05-09","kind":"sale","acquired":false,"shares":25000,"price":40.37,"value":1009250.0,"ownership":{"direct":false,"nature":"As trustee"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price is a weighted-average price.  The shares were sold in multiple transactions at prices ranging from $40.2102 to $40.6022, inclusive."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The shares shown are held, of record, by a separate charitable remainder unitrust of which the reporting person is the sole trustee and, as such, has investment and voting control over such shares, and is a lifetime beneficiary.  The reporting person disclaims as beneficial ownership of the shares except to the extent of his pecuniary interest therein."}],"balance_after":850000,"source":{"system":"sec-edgar","filing":"0001250853-18-000073","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/730272/000125085318000073/primary_doc.xml","form_type":"4"}},{"id":3941984,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":139645,"kind":"person","name":"EDDLEMAN ROY T","position":1,"cik":"0001270264","reported_name":"EDDLEMAN ROY T","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-05-09T22:59:33.000Z","date":"2018-05-09","kind":"sale","acquired":false,"shares":20773,"price":40.52,"value":841721.96,"ownership":{"direct":false,"nature":"As trustee"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price is a weighted-average price.  The shares were sold in multiple transactions at prices ranging from $40.2401 to $40.70, inclusive."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The shares shown are held, of record, by a charitable remainder unitrust of which the reporting person is the sole trustee and, as such, has investment and voting control over such shares, and is a lifetime beneficiary.  The reporting person disclaims as beneficial ownership of the shares except to the extent of his pecuniary interest therein."}],"balance_after":410000,"source":{"system":"sec-edgar","filing":"0001250853-18-000073","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/730272/000125085318000073/primary_doc.xml","form_type":"4"}},{"id":3941983,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":139645,"kind":"person","name":"EDDLEMAN ROY T","position":1,"cik":"0001270264","reported_name":"EDDLEMAN ROY T","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-05-09T22:59:33.000Z","date":"2018-05-08","kind":"sale","acquired":false,"shares":25000,"price":40.66,"value":1016500.0,"ownership":{"direct":false,"nature":"As trustee"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price is a weighted-average price.  The shares were sold in multiple transactions at prices ranging from $40.5607 to $41.0107, inclusive."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The shares shown are held, of record, by a separate charitable remainder unitrust of which the reporting person is the sole trustee and, as such, has investment and voting control over such shares, and is a lifetime beneficiary.  The reporting person disclaims as beneficial ownership of the shares except to the extent of his pecuniary interest therein."}],"balance_after":875000,"source":{"system":"sec-edgar","filing":"0001250853-18-000073","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/730272/000125085318000073/primary_doc.xml","form_type":"4"}},{"id":3941982,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":139645,"kind":"person","name":"EDDLEMAN ROY T","position":1,"cik":"0001270264","reported_name":"EDDLEMAN ROY T","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-05-09T22:59:33.000Z","date":"2018-05-08","kind":"sale","acquired":false,"shares":49227,"price":40.77,"value":2006984.79,"ownership":{"direct":false,"nature":"As trustee"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is a weighted-average price.  The shares were sold in multiple transactions at prices ranging from $40.5515 to $41.0078, inclusive.  The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the price ranges set forth in this footnote (1) and in footnote (3) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The shares shown are held, of record, by a charitable remainder unitrust of which the reporting person is the sole trustee and, as such, has investment and voting control over such shares, and is a lifetime beneficiary.  The reporting person disclaims as beneficial ownership of the shares except to the extent of his pecuniary interest therein."}],"balance_after":430773,"source":{"system":"sec-edgar","filing":"0001250853-18-000073","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/730272/000125085318000073/primary_doc.xml","form_type":"4"}},{"id":4120674,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":139645,"kind":"person","name":"EDDLEMAN ROY T","position":1,"cik":"0001270264","reported_name":"EDDLEMAN ROY T","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2017-12-28T19:04:37.000Z","date":"2017-12-27","kind":"gift","acquired":false,"shares":900000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On December 27, 2017, the reporting person contributed 480,000 and 900,000 shares, respectively, of RGEN common stock to separate charitable remainder unit trusts of which the reporting person is the trustee and a lifetime beneficiary."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"The RGEN shares shown are held for the benefit of the reporting person in an escrow account established in connection with the Issuer's acquisition of Spectrum, Inc. on August 1, 2017, and are subject to potential indemnification claims of the Issuer relating to the acquisition."}],"balance_after":357518,"source":{"system":"sec-edgar","filing":"0001250853-17-000111","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/730272/000125085317000111/primary_doc.xml","form_type":"4"}},{"id":4120673,"issuer":{"id":486,"kind":"organization","name":"REPLIGEN CORP","symbol":"RGEN"},"owners":[{"id":139645,"kind":"person","name":"EDDLEMAN ROY T","position":1,"cik":"0001270264","reported_name":"EDDLEMAN ROY T","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2017-12-28T19:04:37.000Z","date":"2017-12-27","kind":"gift","acquired":false,"shares":480000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On December 27, 2017, the reporting person contributed 480,000 and 900,000 shares, respectively, of RGEN common stock to separate charitable remainder unit trusts of which the reporting person is the trustee and a lifetime beneficiary."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"The RGEN shares shown are held for the benefit of the reporting person in an escrow account established in connection with the Issuer's acquisition of Spectrum, Inc. on August 1, 2017, and are subject to potential indemnification claims of the Issuer relating to the acquisition."}],"balance_after":357518,"source":{"system":"sec-edgar","filing":"0001250853-17-000111","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/730272/000125085317000111/primary_doc.xml","form_type":"4"}}]}