{"url_path":"/sec/rgen/8-k/2026-07-22/item-8-01","section_key":"item-8-01","section_title":"Item 8.01 Other Events","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-07-22","source_url":"https://www.sec.gov/Archives/edgar/data/730272/0001193125-26-311402-index.html","accession_number":"0001193125-26-311402","cik":"0000730272","ticker":"RGEN","issuer_name":"REPLIGEN CORP","edgar_url":"https://www.sec.gov/Archives/edgar/data/730272/0001193125-26-311402-index.html","primary_entity_key":"0000730272","primary_entity_name":"REPLIGEN CORP"},"word_count":157,"has_tables":true,"body_markdown":"Item 8.01\n\nOther Events\n\nRepligen’s management also delivered an Employee Frequently Asked Questions memorandum on July 22, 2026. A copy of Repligen’s Employee Frequently Asked Questions memorandum is attached hereto as Exhibit 99.3 and is incorporated herein by reference. In addition, the Chief Executive Officer of Repligen, Olivier Loeillot, sent an email to the Company’s employees to notify them of the execution of the Merger Agreement. A copy of Mr. Loellot’s email is attached hereto as Exhibit 99.4 and is incorporated herein by reference.\n\nThe information contained in Item 7.01 of this Current Report on Form 8-K (including Exhibits 99.1 and 99.2 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, except as expressly provided by specific reference in such a filing."}