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Repligen Corp. SEC filings

In the twelve months since 9 October 2025 Repligen Corp. filed 19 documents with the SEC of the kinds listed here: 10 current reports (8-K), about 5 results of operations; 3 regulation fd disclosure; 2 officer or director change; 2 other events; 1 acquisition or disposition completed; 3 quarterly reports (10-Q), 2 additional proxy materials (DEFA14A), 1 merger registration (S-4), 1 annual report to shareholders (ARS), 1 proxy statement (DEF 14A), 1 annual report (10-K). The latest, filed 6 October 2026: 8-K, acquisition or disposition completed, regulation fd disclosure.

FiledFormWhat it was aboutPeriod or event dateFiling
6 October 20268-KAcquisition or disposition completed, Regulation FD disclosure6 October 2026EDGAR
15 September 20268-KOfficer or director change10 September 2026EDGAR
8 September 20268-KOther events3 September 2026EDGAR
25 August 2026S-4merger registrationEDGAR
29 July 202610-Qquarterly report30 June 2026EDGAR
28 July 20268-KResults of operations28 July 2026EDGAR
22 July 20268-KMaterial agreement, Results of operations, Regulation FD disclosure, Other events21 July 2026EDGAR
15 May 20268-KShareholder vote14 May 2026EDGAR
6 May 202610-Qquarterly report31 March 2026EDGAR
5 May 20268-KResults of operations5 May 2026EDGAR
27 April 2026DEFA14Aadditional proxy materialEDGAR
2 April 2026ARSannual report to shareholders31 December 2025EDGAR
2 April 2026DEFA14Aadditional proxy materialEDGAR
2 April 2026DEF 14Aproxy statement14 May 2026EDGAR
26 February 202610-Kannual report31 December 2025EDGAR
24 February 20268-KResults of operations24 February 2026EDGAR
6 January 20268-KOfficer or director change, Regulation FD disclosure6 January 2026EDGAR
4 November 202510-Qquarterly report30 September 2025EDGAR
28 October 20258-KResults of operations28 October 2025EDGAR
An 8-K is what a company files within four business days of a material event; the SEC numbers the events, and the words here are the SEC's own headings, shortened.
Read moreForm 4, Form 144, 13F and Schedule 13D and 13G have their own pages. Prospectus supplements and correspondence are not listed.

Source

The company's filing index on EDGAR, read from the SEC's submissions feed.

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