Repligen Corp SEC filings RGEN
Repligen Corp has 1,003 filings in SEC EDGAR's recent list, going back to May 13, 2010. Its latest annual report, Form ARS, was filed on Apr 2, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 30, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 30, 2026 (unregistered share sale, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 8, 2026 | Oct 6, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 7, 2026 | — |
| 4 | Insider transaction | Oct 6, 2026 | Oct 5, 2026 |
| 144 | Notice of proposed sale | Oct 5, 2026 | — |
| 4 | Insider transaction | Oct 5, 2026 | Oct 2, 2026 |
| 144 | Notice of proposed sale | Oct 5, 2026 | — |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 25, 2026 | Sep 24, 2026 |
| 144 | Notice of proposed sale | Sep 24, 2026 | — |
| 4 | Insider transaction | Sep 22, 2026 | Sep 21, 2026 |
| 144 | Notice of proposed sale | Sep 21, 2026 | — |
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| 144 | Notice of proposed sale | Sep 4, 2026 | — |
| 4 | Insider transaction | Sep 2, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Aug 21, 2026 | Aug 20, 2026 |
| 144 | Notice of proposed sale | Aug 20, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 31, 2026 | — |
| 4 | Insider transaction | Jul 17, 2026 | Jul 16, 2026 |
| 144 | Notice of proposed sale | Jul 16, 2026 | — |
| 4 | Insider transaction | Jun 26, 2026 | Jun 25, 2026 |
| 144 | Notice of proposed sale | Jun 25, 2026 | — |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 8, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 8, 2026 | May 7, 2026 |
| 4 | Insider transaction | Apr 22, 2026 | Apr 21, 2026 |
| 144 | Notice of proposed sale | Apr 21, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 23, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 2, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 5, 2026 | — |
| 4 | Insider transaction | Jan 12, 2026 | Dec 31, 2025 |
| 3 | Initial insider ownership | Jan 12, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 17, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 16, 2025 |
| 144 | Notice of proposed sale | Dec 17, 2025 | — |
| 4 | Insider transaction | Dec 8, 2025 | Dec 4, 2025 |
| 4 | Insider transaction | Nov 26, 2025 | Nov 25, 2025 |
| 144 | Notice of proposed sale | Nov 25, 2025 | — |
| 4 | Insider transaction | Nov 19, 2025 | Nov 18, 2025 |
| 144 | Notice of proposed sale | Nov 18, 2025 | — |
| 4 | Insider transaction | Nov 14, 2025 | Nov 13, 2025 |
| 4 | Insider transaction | Nov 13, 2025 | Nov 12, 2025 |
| 144 | Notice of proposed sale | Nov 13, 2025 | — |
| 144 | Notice of proposed sale | Nov 12, 2025 | — |
| 4 | Insider transaction | Oct 6, 2025 | Oct 2, 2025 |
| 4 | Insider transaction | Sep 26, 2025 | Sep 25, 2025 |
| 4 | Insider transaction | Sep 11, 2025 | Sep 10, 2025 |
| 144 | Notice of proposed sale | Sep 10, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Sep 8, 2025 | — |
| 4 | Insider transaction | Sep 4, 2025 | Sep 2, 2025 |
| 4 | Insider transaction | Sep 4, 2025 | Sep 3, 2025 |
| 3 | Initial insider ownership | Sep 4, 2025 | Sep 1, 2025 |
| 4 | Insider transaction | Aug 12, 2025 | Aug 8, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 144 | Notice of proposed sale | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2025 | — |
| 4 | Insider transaction | Apr 2, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 13, 2025 |
| 4 | Insider transaction | Mar 19, 2025 | Mar 17, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 17, 2025 |
| 144 | Notice of proposed sale | Mar 17, 2025 | — |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 24, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2025 | — |
| 4 | Insider transaction | Dec 5, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Nov 22, 2024 | Nov 21, 2024 |
| 144 | Notice of proposed sale | Nov 21, 2024 | — |
| 4 | Insider transaction | Nov 21, 2024 | Nov 20, 2024 |
| 4 | Insider transaction | Nov 21, 2024 | Nov 20, 2024 |
| 4 | Insider transaction | Nov 20, 2024 | Nov 19, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 23, 2024 | — |
| 4 | Insider transaction | Sep 12, 2024 | Sep 10, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 10, 2024 | — |
| 144 | Notice of proposed sale | Sep 10, 2024 | — |
| 4 | Insider transaction | Sep 4, 2024 | Sep 3, 2024 |
| 4 | Insider transaction | Sep 4, 2024 | Sep 3, 2024 |
| 4/A | Filing | Aug 19, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | Aug 5, 2024 | Aug 2, 2024 |
| 144 | Notice of proposed sale | Aug 2, 2024 | — |
| 4 | Insider transaction | Aug 1, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | Aug 1, 2024 | Aug 1, 2024 |
| 144 | Notice of proposed sale | Aug 1, 2024 | — |
| 144 | Notice of proposed sale | Aug 1, 2024 | — |
| 4 | Insider transaction | Jun 14, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | May 22, 2024 | May 21, 2024 |
| 144 | Notice of proposed sale | May 21, 2024 | — |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 15, 2024 | May 14, 2024 |
| 4 | Insider transaction | May 15, 2024 | May 14, 2024 |
| 4 | Insider transaction | Apr 4, 2024 | Apr 2, 2024 |
| 4 | Insider transaction | Mar 20, 2024 | Mar 18, 2024 |
| 4 | Insider transaction | Mar 19, 2024 | Mar 18, 2024 |
| 3 | Initial insider ownership | Mar 19, 2024 | Mar 18, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 11, 2024 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 8, 2024 |
| 144 | Notice of proposed sale | Mar 11, 2024 | — |
| 144 | Notice of proposed sale | Mar 8, 2024 | — |
| 4 | Insider transaction | Mar 7, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 6, 2024 | Mar 4, 2024 |
| 4 | Insider transaction | Mar 6, 2024 | Mar 4, 2024 |
| 4 | Insider transaction | Mar 6, 2024 | Mar 4, 2024 |
| 4 | Insider transaction | Mar 6, 2024 | Mar 4, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 29, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 29, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 29, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 29, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 28, 2024 | Feb 27, 2024 |
| 144 | Notice of proposed sale | Feb 27, 2024 | — |
| 4 | Insider transaction | Feb 26, 2024 | Feb 23, 2024 |
| 144 | Notice of proposed sale | Feb 23, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2024 | — |
| 4/A | Filing | Dec 15, 2023 | May 18, 2023 |
| 4 | Insider transaction | Nov 16, 2023 | Nov 14, 2023 |
| 4 | Insider transaction | Nov 13, 2023 | Nov 10, 2023 |
| 144 | Notice of proposed sale | Nov 13, 2023 | — |
| 4 | Insider transaction | Oct 3, 2023 | Oct 2, 2023 |
| 3 | Initial insider ownership | Oct 3, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Sep 27, 2023 | Sep 25, 2023 |
| 3 | Initial insider ownership | Sep 27, 2023 | Sep 25, 2023 |
| 4 | Insider transaction | Aug 30, 2023 | Aug 29, 2023 |
| 144 | Notice of proposed sale | Aug 29, 2023 | — |
| 4 | Insider transaction | May 22, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 16, 2023 | May 16, 2023 |
| 4 | Insider transaction | May 16, 2023 | May 16, 2023 |
| 4 | Insider transaction | May 16, 2023 | May 16, 2023 |
| 4 | Insider transaction | May 8, 2023 | Mar 24, 2023 |
| 3/A | Form 3/a submission | May 5, 2023 | Feb 6, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Apr 4, 2023 |
| 4 | Insider transaction | Mar 6, 2023 | Mar 2, 2023 |
| 4 | Insider transaction | Mar 6, 2023 | Mar 2, 2023 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- RGEN (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Waltham, MA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 730272
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.