Verastem, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Calkins Daniel | Chief Financial Officer | Sale | 80 | $7.86 | $629 | 109,758 | Dec 24, 2025 |
| Stuglik Brian M | — | Sale | 592 | $9.14 | $5,411 | 101,147 | Dec 16, 2025 |
| Paterson Dan | President and CEO | Sale | 393 | $9.14 | $3,592 | 410,425 | Dec 16, 2025 |
| Gagnon Robert E. | — | Sale | 283 | $9.14 | $2,587 | 41,678 | Dec 16, 2025 |
| Paterson Dan | President and CEO | Sale | 2,000 | $10.00 | $20,000 | 410,818 | Dec 10, 2025 |
| Paterson Dan | President and CEO | Sale | 2,000 | $10.61 | $21,220 | 418,818 | Dec 8, 2025 |
| Paterson Dan | President and CEO | Sale | 2,000 | $10.00 | $20,000 | 420,818 | Dec 3, 2025 |
| Paterson Dan | President and CEO | Sale | 2,000 | $10.79 | $21,580 | 428,818 | Nov 26, 2025 |
| Paterson Dan | President and CEO | Sale | 2,000 | $10.00 | $20,000 | 436,818 | Nov 24, 2025 |
| Bunn Paul A. | — | Option Exercise | 6,250 | $3.27 | $20,438 | 8,333 | Nov 21, 2025 |
| Kauffman Michael | — | Sale | 8,550 | $10.00 | $85,500 | 8,666 | Nov 21, 2025 |
| Paterson Dan | President and CEO | Sale | 2,000 | $10.00 | $20,000 | 438,818 | Nov 3, 2025 |
| Bunn Paul A. | — | Sale | 8,333 | $9.06 | $75,497 | 8,333 | Oct 9, 2025 |
| Calkins Daniel | Chief Financial Officer | Sale | 25 | $9.23 | $231 | 109,838 | Sep 22, 2025 |
| Stuglik Brian M | — | Sale | 587 | $9.99 | $5,864 | 101,739 | Sep 16, 2025 |
| Gagnon Robert E. | — | Sale | 281 | $9.99 | $2,807 | 41,961 | Sep 16, 2025 |
| Paterson Dan | President and CEO | Sale | 390 | $9.99 | $3,896 | 442,117 | Sep 16, 2025 |
| Paterson Dan | President and CEO | Sale | 1,332 | $5.81 | $7,739 | 442,507 | Aug 6, 2025 |
| Paterson Dan | President and CEO | Sale | 17,808 | $5.13 | $91,355 | 443,839 | Jun 20, 2025 |
| Calkins Daniel | Chief Financial Officer | Sale | 25 | $4.71 | $118 | 109,920 | Jun 20, 2025 |
| Paterson Dan | President and CEO | Sale | 335 | $5.65 | $1,893 | 461,647 | Jun 16, 2025 |
| Gagnon Robert E. | — | Sale | 284 | $5.65 | $1,605 | 42,242 | Jun 16, 2025 |
| Stuglik Brian M | — | Sale | 594 | $5.65 | $3,356 | 102,326 | Jun 16, 2025 |
| ROBERTSON MICHELLE | — | Award / Grant | 8,333 | — | — | 16,666 | May 22, 2025 |
| Bunn Paul A. | — | Award / Grant | 8,333 | — | — | 16,666 | May 22, 2025 |
| Kapur Anil | — | Award / Grant | 8,333 | — | — | 16,666 | May 22, 2025 |
| Stuglik Brian M | — | Award / Grant | 8,333 | — | — | 102,920 | May 22, 2025 |
| Gagnon Robert E. | — | Award / Grant | 8,333 | — | — | 42,526 | May 22, 2025 |
| Kauffman Michael | — | Award / Grant | 8,333 | — | — | 17,216 | May 22, 2025 |
| Tollefson Karin Anna | — | Award / Grant | 8,333 | — | — | 16,666 | May 22, 2025 |
| JOHNSON JOHN | — | Award / Grant | 8,333 | — | — | 16,666 | May 22, 2025 |
| Rowinsky Eric K | — | Award / Grant | 8,333 | — | — | 16,666 | May 22, 2025 |
| Calkins Daniel | Chief Financial Officer | Award / Grant | 38,850 | — | — | 125,198 | May 20, 2025 |
| Paterson Dan | President and CEO | Award / Grant | 25,000 | — | — | 370,659 | May 20, 2025 |
| Paterson Dan | President and CEO | Sale | 820 | $7.30 | $5,986 | 345,659 | May 5, 2025 |
| Ros Matthew | Chief Operating Officer | Award / Grant | 50,000 | — | — | 50,000 | Apr 1, 2025 |
| Calkins Daniel | Chief Financial Officer | Sale | 26 | $7.04 | $183 | 86,348 | Mar 20, 2025 |
| Paterson Dan | President and CEO | Sale | 244 | $6.95 | $1,696 | 346,479 | Mar 17, 2025 |
| Gagnon Robert E. | — | Sale | 284 | $6.95 | $1,974 | 34,193 | Mar 17, 2025 |
| Stuglik Brian M | — | Sale | 593 | $6.95 | $4,121 | 94,587 | Mar 17, 2025 |
| Paterson Dan | President and CEO | Sale | 858 | $5.70 | $4,891 | 346,723 | Feb 4, 2025 |
| Paterson Dan | President and CEO | Award / Grant | 25,000 | — | — | 356,149 | Jan 10, 2025 |
| Calkins Daniel | Chief Financial Officer | Award / Grant | 38,800 | — | — | 86,439 | Jan 10, 2025 |
| Calkins Daniel | Chief Financial Officer | Sale | 6 | $6.94 | $42 | 47,639 | Jan 6, 2025 |
| Calkins Daniel | Chief Financial Officer | Sale | 28 | $3.91 | $109 | 47,368 | Dec 20, 2024 |
| Paterson Dan | President and CEO | Sale | 244 | $4.54 | $1,108 | 231,332 | Dec 19, 2024 |
| Gagnon Robert E. | — | Sale | 130 | $4.37 | $568 | 34,477 | Dec 16, 2024 |
| Stuglik Brian M | — | Sale | 334 | $4.37 | $1,460 | 95,180 | Dec 16, 2024 |
| Paterson Dan | President and CEO | Sale | 812 | $3.84 | $3,118 | 231,576 | Nov 5, 2024 |
| Calkins Daniel | Chief Financial Officer | Sale | 6 | $2.86 | $17 | 47,461 | Oct 7, 2024 |