Prime Medicine, Inc. SEC filings PRME
Prime Medicine, Inc. has 298 filings in SEC EDGAR's recent list, going back to Dec 20, 2021. Its latest annual report, Form ARS, was filed on Apr 23, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 6, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
| 8-K |
Current report
Other events
|
Jul 8, 2026 | Jul 6, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 5, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 8, 2026 | Jun 5, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| ARS | Annual report to shareholders | Apr 23, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 23, 2026 | — |
| DEF 14A | Proxy statement | Apr 23, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Apr 17, 2026 | Apr 16, 2026 |
| 3 | Initial insider ownership | Apr 17, 2026 | Apr 16, 2026 |
| 8-K |
Current report
Officer or director change
|
Apr 16, 2026 | Apr 7, 2026 |
| EFFECT | Filing | Mar 4, 2026 | — |
| S-8 | Employee stock plan registration | Mar 3, 2026 | — |
| POS AM | Filing | Mar 3, 2026 | — |
| 10-K | Annual report | Mar 3, 2026 | Dec 31, 2025 |
| POSASR | Filing | Mar 3, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 3, 2026 | Mar 3, 2026 |
| 4 | Insider transaction | Feb 27, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 23, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 12, 2026 | Jan 12, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 12, 2025 | — |
| S-3ASR | Automatic shelf registration | Nov 7, 2025 | — |
| 10-Q | Quarterly report | Nov 7, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2025 | Nov 7, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 5, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 8, 2025 | Sep 8, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 11, 2025 | — |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 1, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 1, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 1, 2025 | Aug 1, 2025 |
| 8-K |
Current report
Material agreement
|
Jul 31, 2025 | Jul 30, 2025 |
| 424B5 | Prospectus supplement | Jul 31, 2025 | — |
| 424B5 | Prospectus supplement | Jul 30, 2025 | — |
| 8-K |
Current report
Results of operations, Other events
|
Jul 30, 2025 | Jul 30, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 15, 2025 | Jul 14, 2025 |
| DEF 14A | Proxy statement | Jul 14, 2025 | Aug 1, 2025 |
| PRE 14A | Preliminary proxy statement | Jul 2, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Jul 1, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jun 23, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 16, 2025 | Jun 16, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 11, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 20, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| DEFA14A | Additional proxy material | May 19, 2025 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure, Other events
|
May 19, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 8, 2025 |
| ARS | Annual report to shareholders | Apr 22, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 22, 2025 | — |
| DEF 14A | Proxy statement | Apr 22, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Mar 18, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| S-8 | Employee stock plan registration | Feb 28, 2025 | — |
| 10-K | Annual report | Feb 28, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 28, 2025 | Feb 28, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 13, 2025 | Jan 13, 2025 |
| EFFECT | Filing | Dec 20, 2024 | — |
| CORRESP | Letter to the SEC | Dec 18, 2024 | — |
| UPLOAD | Letter from the SEC | Dec 17, 2024 | — |
| S-3 | Shelf registration | Dec 13, 2024 | — |
| 4 | Insider transaction | Dec 9, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Dec 9, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Dec 9, 2024 | Dec 5, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 22, 2024 | — |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2024 | Nov 12, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 24, 2024 | Oct 24, 2024 |
| 4 | Insider transaction | Oct 10, 2024 | Oct 8, 2024 |
| SC 13G | Ownership over 5% (passive) | Oct 4, 2024 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Sep 30, 2024 | Sep 28, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jun 12, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | May 21, 2024 | May 17, 2024 |
| 4 | Insider transaction | May 21, 2024 | May 17, 2024 |
| 4 | Insider transaction | May 21, 2024 | May 17, 2024 |
| DEFA14A | Additional proxy material | May 21, 2024 | — |
| 8-K |
Current report
Bylaw or fiscal year change
|
May 21, 2024 | May 17, 2024 |
| 10-Q | Quarterly report | May 10, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 10, 2024 | May 10, 2024 |
| ARS | Annual report to shareholders | Apr 29, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 29, 2024 | — |
| DEF 14A | Proxy statement | Apr 29, 2024 | Jun 12, 2024 |
| PRE 14A | Preliminary proxy statement | Apr 19, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 29, 2024 |
| S-8 | Employee stock plan registration | Mar 1, 2024 | — |
| 10-K | Annual report | Mar 1, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 1, 2024 | Mar 1, 2024 |
| 3 | Initial insider ownership | Feb 29, 2024 | Feb 20, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 29, 2024 | — |
| 4 | Insider transaction | Feb 27, 2024 | Feb 25, 2024 |
| 4 | Insider transaction | Feb 23, 2024 | Feb 21, 2024 |
| 4 | Insider transaction | Feb 23, 2024 | Feb 21, 2024 |
| 4 | Insider transaction | Feb 23, 2024 | Feb 21, 2024 |
| 4 | Insider transaction | Feb 23, 2024 | Feb 21, 2024 |
| 4 | Insider transaction | Feb 23, 2024 | Feb 21, 2024 |
| SC 13D | Ownership over 5% (active) | Feb 22, 2024 | — |
| 4 | Insider transaction | Feb 20, 2024 | Feb 15, 2024 |
| 4 | Insider transaction | Feb 20, 2024 | Feb 15, 2024 |
| 4 | Insider transaction | Feb 20, 2024 | Feb 15, 2024 |
| 8-K |
Current report
Material agreement
|
Feb 16, 2024 | Feb 14, 2024 |
| 424B5 | Prospectus supplement | Feb 16, 2024 | — |
| FWP | Free writing prospectus | Feb 15, 2024 | — |
| 424B5 | Prospectus supplement | Feb 14, 2024 | — |
| 8-K |
Current report
Results of operations
|
Feb 14, 2024 | Feb 14, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| 4 | Insider transaction | Jan 19, 2024 | Jan 17, 2024 |
| 3 | Initial insider ownership | Jan 19, 2024 | Jan 17, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 8, 2024 | Jan 8, 2024 |
| 8-K |
Current report
Other events
|
Jan 5, 2024 | Jan 4, 2024 |
| 8-K |
Current report
Officer or director change
|
Jan 5, 2024 | Jan 4, 2024 |
| 4 | Insider transaction | Nov 14, 2023 | Nov 11, 2023 |
| EFFECT | Filing | Nov 13, 2023 | — |
| CORRESP | Letter to the SEC | Nov 9, 2023 | — |
| UPLOAD | Letter from the SEC | Nov 7, 2023 | — |
| S-3 | Shelf registration | Nov 3, 2023 | — |
| 10-Q | Quarterly report | Nov 3, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2023 | Nov 3, 2023 |
| 10-Q | Quarterly report | Aug 7, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 7, 2023 | Aug 7, 2023 |
| 4/A | Form 4/a | Jul 26, 2023 | Jul 21, 2023 |
| 4 | Insider transaction | Jul 25, 2023 | Jul 21, 2023 |
| 4 | Insider transaction | Jun 22, 2023 | Jun 20, 2023 |
| 144 | Notice of proposed sale | Jun 20, 2023 | — |
| 4 | Insider transaction | Jun 20, 2023 | Jun 15, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 13, 2023 | Jun 9, 2023 |
| 144 | Notice of proposed sale | Jun 12, 2023 | — |
| 4 | Insider transaction | Jun 9, 2023 | Jun 7, 2023 |
| 4 | Insider transaction | Jun 7, 2023 | Jun 5, 2023 |
| 144 | Notice of proposed sale | Jun 5, 2023 | — |
| 4 | Insider transaction | Jun 2, 2023 | May 31, 2023 |
| 4 | Insider transaction | May 31, 2023 | May 26, 2023 |
| 144 | Notice of proposed sale | May 30, 2023 | — |
| 4 | Insider transaction | May 26, 2023 | May 24, 2023 |
| 4 | Insider transaction | May 24, 2023 | May 22, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 18, 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- PRME (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Cambridge, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company, Emerging growth company
- SEC CIK
- 1894562
Other Biological Products, (No Diagnostic Substances) companies
- Amgen Inc AMGN
- Gilead Sciences, Inc. GILD
- Moderna, Inc. MRNA
- Argenx SE ARGX
- Revolution Medicines, Inc. RVMD
- Biogen Inc. BIIB
- BioNTech SE BNTX
- Exelixis, Inc. EXEL
All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.