Verastem, Inc. SEC filings VSTM
Verastem, Inc. has 1,005 filings in SEC EDGAR's recent list, going back to Mar 8, 2012. Its latest annual report, Form 10-K, was filed on Mar 4, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 5, 2026 | Nov 3, 2026 |
| S-3ASR | Automatic shelf registration | Nov 5, 2026 | — |
| S-8 | Employee stock plan registration | Nov 5, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 5, 2026 | Nov 5, 2026 |
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2026 | — |
| 8-K |
Current report
Other events
|
Oct 14, 2026 | Oct 14, 2026 |
| 424B5 | Prospectus supplement | Oct 14, 2026 | — |
| 424B5 | Prospectus supplement | Oct 14, 2026 | — |
| 8-K |
Current report
Results of operations, Officer or director change, Regulation FD disclosure, Other events
|
Oct 14, 2026 | Oct 12, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 144 | Notice of proposed sale | Oct 1, 2026 | — |
| 4 | Insider transaction | Sep 23, 2026 | Sep 21, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 7, 2026 | — |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Aug 7, 2026 | Aug 6, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Aug 5, 2026 | Aug 3, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 31, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 30, 2026 | — |
| 144 | Notice of proposed sale | Jul 23, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 8, 2026 | — |
| 144 | Notice of proposed sale | Jun 25, 2026 | — |
| 4 | Insider transaction | Jun 24, 2026 | Jun 22, 2026 |
| 4 | Insider transaction | Jun 24, 2026 | Jun 22, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 23, 2026 | Jun 23, 2026 |
| 144 | Notice of proposed sale | Jun 22, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 17, 2026 | Jun 16, 2026 |
| S-8 | Employee stock plan registration | May 29, 2026 | — |
| 4 | Insider transaction | May 27, 2026 | May 21, 2026 |
| 3 | Initial insider ownership | May 27, 2026 | May 21, 2026 |
| 144 | Notice of proposed sale | May 27, 2026 | — |
| 4 | Insider transaction | May 26, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 21, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 26, 2026 | May 21, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
May 7, 2026 | May 7, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| DEF 14A | Proxy statement | Apr 9, 2026 | May 21, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 23, 2026 | Mar 20, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 4, 2026 | Mar 4, 2026 |
| 10-K | Annual report | Mar 4, 2026 | Dec 31, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| 4 | Insider transaction | Feb 5, 2026 | Feb 4, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 4, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Jan 23, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 23, 2026 | Jan 21, 2026 |
| 144 | Notice of proposed sale | Jan 14, 2026 | — |
| 144 | Notice of proposed sale | Jan 14, 2026 | — |
| 4 | Insider transaction | Jan 14, 2026 | Jan 12, 2026 |
| 4 | Insider transaction | Jan 14, 2026 | Jan 12, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 8, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 8, 2026 | Jan 6, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 5, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Dec 31, 2025 | Dec 29, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 24, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 19, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 12, 2025 | Dec 10, 2025 |
| 144/A | Filing | Dec 10, 2025 | — |
| 4 | Insider transaction | Dec 9, 2025 | Dec 5, 2025 |
| 144 | Notice of proposed sale | Dec 9, 2025 | — |
| 4 | Insider transaction | Dec 4, 2025 | Dec 2, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 26, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 21, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 21, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 21, 2025 |
| 144 | Notice of proposed sale | Nov 21, 2025 | — |
| 144 | Notice of proposed sale | Nov 21, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 21, 2025 | — |
| 8-K |
Current report
Other events
|
Nov 17, 2025 | Nov 13, 2025 |
| 424B5 | Prospectus supplement | Nov 17, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| FWP | Free writing prospectus | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 13, 2025 | — |
| 424B5 | Prospectus supplement | Nov 13, 2025 | — |
| 4 | Insider transaction | Nov 6, 2025 | Nov 3, 2025 |
| S-8 | Employee stock plan registration | Nov 4, 2025 | — |
| 10-Q | Quarterly report | Nov 4, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 4, 2025 | Nov 4, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 23, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 23, 2025 | Oct 23, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 20, 2025 | Oct 19, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 17, 2025 | — |
| 4 | Insider transaction | Oct 14, 2025 | Oct 9, 2025 |
| 144 | Notice of proposed sale | Oct 9, 2025 | — |
| 4 | Insider transaction | Sep 24, 2025 | Sep 22, 2025 |
| 4 | Insider transaction | Sep 18, 2025 | Sep 16, 2025 |
| 4 | Insider transaction | Sep 18, 2025 | Sep 16, 2025 |
| 4 | Insider transaction | Sep 18, 2025 | Sep 16, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 8, 2025 | Sep 8, 2025 |
| 144 | Notice of proposed sale | Sep 4, 2025 | — |
| EFFECT | Filing | Aug 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Aug 13, 2025 | Aug 13, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2025 | — |
| CORRESP | Letter to the SEC | Aug 13, 2025 | — |
| UPLOAD | Letter from the SEC | Aug 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 12, 2025 | — |
| S-3/A | Filing | Aug 12, 2025 | — |
| S-3 | Shelf registration | Aug 8, 2025 | — |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Aug 6, 2025 | Aug 6, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 6, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 29, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 29, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 28, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 28, 2025 | — |
| 4 | Insider transaction | Jun 24, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 24, 2025 | Jun 20, 2025 |
| 144 | Notice of proposed sale | Jun 20, 2025 | — |
| 4 | Insider transaction | Jun 20, 2025 | Jun 16, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 16, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 16, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 2, 2025 | Jun 2, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 2, 2025 | Jun 2, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure, Other events
|
May 23, 2025 | May 22, 2025 |
| EFFECT | Filing | May 20, 2025 | — |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 144 | Notice of proposed sale | May 20, 2025 | — |
| 144 | Notice of proposed sale | May 20, 2025 | — |
| 424B3 | Prospectus | May 20, 2025 | — |
| CORRESP | Letter to the SEC | May 16, 2025 | — |
| UPLOAD | Letter from the SEC | May 16, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| S-3 | Shelf registration | May 13, 2025 | — |
| 10-Q | Quarterly report | May 13, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 8, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 7, 2025 | May 5, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 2, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 30, 2025 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Apr 25, 2025 | Apr 25, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2025 | — |
| DEF 14A | Proxy statement | Apr 8, 2025 | May 22, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| EFFECT | Filing | Mar 28, 2025 | — |
| 424B3 | Prospectus | Mar 28, 2025 | — |
| CORRESP | Letter to the SEC | Mar 26, 2025 | — |
| UPLOAD | Letter from the SEC | Mar 26, 2025 | — |
| 4 | Insider transaction | Mar 24, 2025 | Mar 20, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 21, 2025 | — |
| S-3 | Shelf registration | Mar 20, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 20, 2025 | Mar 20, 2025 |
| 10-K | Annual report | Mar 20, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Mar 19, 2025 | Mar 17, 2025 |
| 4 | Insider transaction | Mar 19, 2025 | Mar 17, 2025 |
| 4 | Insider transaction | Mar 19, 2025 | Mar 17, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 11, 2025 | — |
| 4 | Insider transaction | Feb 5, 2025 | Feb 4, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 31, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 23, 2025 | Jan 14, 2025 |
| 8-K |
Current report
Officer or director change
|
Jan 21, 2025 | Jan 14, 2025 |
| 3 | Initial insider ownership | Jan 21, 2025 | Jan 14, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 21, 2025 | — |
| 4 | Insider transaction | Jan 14, 2025 | Jan 10, 2025 |
| 4 | Insider transaction | Jan 14, 2025 | Jan 10, 2025 |
| 144 | Notice of proposed sale | Jan 13, 2025 | — |
| 8-K |
Current report
Material agreement, Agreement ended, Results of operations, New debt, Unregistered share sale, Other events
|
Jan 13, 2025 | Jan 13, 2025 |
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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- VSTM (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- MA
- Headquarters
- Needham, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1526119
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.