0000899243-23-010599.txt : 20230404 0000899243-23-010599.hdr.sgml : 20230404 20230404213748 ACCESSION NUMBER: 0000899243-23-010599 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230404 FILED AS OF DATE: 20230404 DATE AS OF CHANGE: 20230404 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Bylund James CENTRAL INDEX KEY: 0001849642 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-14656 FILM NUMBER: 23801013 MAIL ADDRESS: STREET 1: C/O REPLIGEN CORPORATION STREET 2: 41 SYON ST. BLDG. SUITE 100 CITY: WALTHAM STATE: MA ZIP: 02453 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: REPLIGEN CORP CENTRAL INDEX KEY: 0000730272 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 042729386 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 41 SEYON STREET STREET 2: BUILDING 1, SUITE 100 CITY: WALTHAM STATE: MA ZIP: 02453 BUSINESS PHONE: 7814499560 MAIL ADDRESS: STREET 1: 41 SEYON STREET STREET 2: BUILDING 1, SUITE 100 CITY: WALTHAM STATE: MA ZIP: 02453 4 1 doc4.xml FORM 4 SUBMISSION X0407 4 2023-04-04 0 0000730272 REPLIGEN CORP RGEN 0001849642 Bylund James C/O REPLIGEN CORPORATION 41 SEYON ST., BLDG 1, STE 100 WALTHAM MA 02453 0 1 0 0 Chief Operating Officer 0 Common Stock 2023-04-04 4 F 0 334 163.45 D 17568 D Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations of the reporting person that arose upon the release of restricted stock units. /s/ Kimberly Brown (Attorney in Fact) 2023-04-04