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 |
|---|---|---|---|
| 10-Q | Quarterly report | Oct 30, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Oct 30, 2026 | Oct 29, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2026 | Oct 27, 2026 |
| 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 |
| 8-K |
Current report
Acquisition or sale of assets, Regulation FD disclosure
|
Oct 6, 2026 | Oct 6, 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 | — |
| 425 | Filing | Sep 30, 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 | — |
| 8-K |
Current report
Officer or director change
|
Sep 15, 2026 | Sep 10, 2026 |
| 425 | Filing | Sep 8, 2026 | — |
| 8-K |
Current report
Other events
|
Sep 8, 2026 | Sep 3, 2026 |
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| EFFECT | Filing | Sep 4, 2026 | — |
| 424B3 | Prospectus | Sep 4, 2026 | — |
| 144 | Notice of proposed sale | Sep 4, 2026 | — |
| S-4/A | Filing | Sep 4, 2026 | — |
| 4 | Insider transaction | Sep 2, 2026 | Mar 5, 2026 |
| S-4 | Registration for a merger or exchange | Aug 25, 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 | — |
| 425 | Filing | Aug 4, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 31, 2026 | — |
| 10-Q | Quarterly report | Jul 29, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2026 | Jul 28, 2026 |
| 425 | Filing | Jul 24, 2026 | — |
| 425 | Filing | Jul 22, 2026 | — |
| 425 | Filing | Jul 22, 2026 | — |
| 8-K |
Current report
Material agreement, Results of operations, Regulation FD disclosure, Other events
|
Jul 22, 2026 | Jul 21, 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 |
| 8-K |
Current report
Shareholder vote results
|
May 15, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 8, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 8, 2026 | May 7, 2026 |
| 10-Q | Quarterly report | May 6, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 5, 2026 | May 5, 2026 |
| DEFA14A | Additional proxy material | Apr 27, 2026 | — |
| 4 | Insider transaction | Apr 22, 2026 | Apr 21, 2026 |
| 144 | Notice of proposed sale | Apr 21, 2026 | — |
| ARS | Annual report to shareholders | Apr 2, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 2, 2026 | — |
| DEF 14A | Proxy statement | Apr 2, 2026 | May 14, 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 |
| 10-K | Annual report | Feb 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 24, 2026 | Feb 24, 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jan 6, 2026 | Jan 6, 2026 |
| 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 | — |
| 10-Q | Quarterly report | Nov 4, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2025 | Oct 28, 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 | — |
| UPLOAD | Letter from the SEC | 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 |
| 8-K |
Current report
Officer or director change
|
Sep 2, 2025 | Sep 1, 2025 |
| CORRESP | Letter to the SEC | Aug 26, 2025 | — |
| UPLOAD | Letter from the SEC | Aug 14, 2025 | — |
| 4 | Insider transaction | Aug 12, 2025 | Aug 8, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 29, 2025 | Jul 29, 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 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
May 15, 2025 | May 15, 2025 |
| 144 | Notice of proposed sale | May 15, 2025 | — |
| 10-Q | Quarterly report | Apr 29, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 29, 2025 | Apr 29, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2025 | — |
| ARS | Annual report to shareholders | Apr 4, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 4, 2025 | — |
| DEF 14A | Proxy statement | Apr 4, 2025 | Apr 3, 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 |
| PRE 14A | Preliminary proxy statement | Mar 17, 2025 | Mar 17, 2025 |
| 144 | Notice of proposed sale | Mar 17, 2025 | — |
| 10-K | Annual report | Mar 14, 2025 | Dec 31, 2024 |
| 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 |
| NT 10-K | Filing | Mar 3, 2025 | Dec 31, 2024 |
| 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 |
| 8-K |
Current report
Results of operations
|
Feb 20, 2025 | Feb 20, 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 |
| 10-Q | Quarterly report | Nov 18, 2024 | Sep 30, 2024 |
| 10-Q/A | Amended quarterly report | Nov 18, 2024 | Jun 30, 2024 |
| 10-Q/A | Amended quarterly report | Nov 18, 2024 | Mar 31, 2024 |
| 10-K/A | Amended annual report | Nov 18, 2024 | Dec 31, 2023 |
| 10-Q/A | Amended quarterly report | Nov 18, 2024 | Sep 30, 2023 |
| 10-Q/A | Amended quarterly report | Nov 18, 2024 | Jun 30, 2023 |
| 10-Q/A | Amended quarterly report | Nov 18, 2024 | Mar 31, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| NT 10-Q | Filing | Nov 12, 2024 | Sep 30, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 12, 2024 | Nov 12, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 23, 2024 | — |
| 8-K |
Current report
Results of operations, Restatement, Regulation FD disclosure
|
Sep 18, 2024 | Sep 12, 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 |
| UPLOAD | Letter from the SEC | Aug 12, 2024 | — |
| CORRESP | Letter to the SEC | Aug 6, 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 | — |
| 10-Q | Quarterly report | Jul 30, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2024 | Jul 30, 2024 |
| UPLOAD | Letter from the SEC | Jul 24, 2024 | — |
| 8-K |
Current report
Other events
|
Jul 15, 2024 | Jul 15, 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 |
| 8-K |
Current report
Officer or director change
|
Jun 14, 2024 | Jun 12, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 13, 2024 | Jun 13, 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 |
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.