13 insiders reported 72 Form 4 transactions for Verastem, Inc. (VSTM) over the past 18 months (most recent 2026-09-23). Recent activity: Calkins Daniel (Chief Financial Officer) Sell 55 shares, Paterson Dan (President and CEO) Sell 1,302 shares, Paterson Dan (President and CEO) Sell 20,871 shares, Calkins Daniel (Chief Financial Officer) Sell 4,032 shares, Calkins Daniel (Chief Financial Officer) Sell 57 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-23 | Calkins Daniel | Chief Financial Officer | Sell | 55 | $424 |
| 2026-08-05 | Paterson Dan | President and CEO | Sell | 1,302 | $7,565 |
| 2026-06-24 | Paterson Dan | President and CEO | Sell | 20,871 | $87,241 |
| 2026-06-24 | Calkins Daniel | Chief Financial Officer | Sell | 4,032 | $16,854 |
| 2026-06-24 | Calkins Daniel | Chief Financial Officer | Sell | 57 | $235 |
| 2026-05-27 | BAILEY MICHAEL P | Director | Buy | 108,000 | $0 |
| 2026-05-26 | Kapur Anil | Director | Buy | 36,000 | $0 |
| 2026-05-26 | Tollefson Karin Anna | Director | Buy | 36,000 | $0 |
| 2026-05-26 | Bunn Paul A. | Director | Buy | 36,000 | $0 |
| 2026-05-26 | ROBERTSON MICHELLE | Director | Buy | 36,000 | $0 |
| 2026-05-26 | Stuglik Brian M | Director | Buy | 36,000 | $0 |
| 2026-05-26 | Rowinsky Eric K | Director | Buy | 36,000 | $0 |
| 2026-05-26 | JOHNSON JOHN | Director | Buy | 36,000 | $0 |
| 2026-05-06 | Paterson Dan | President and CEO | Sell | 806 | $4,691 |
| 2026-03-23 | Calkins Daniel | Chief Financial Officer | Sell | 57 | $327 |
| 2026-02-05 | Paterson Dan | President and CEO | Sell | 970 | $6,489 |
| 2026-01-23 | Calkins Daniel | Chief Financial Officer | Buy | 16,665 | $0 |
| 2026-01-23 | Paterson Dan | President and CEO | Buy | 213,785 | $0 |
| 2026-01-14 | Paterson Dan | President and CEO | Sell | 10,321 | $73,898 |
| 2026-01-14 | Calkins Daniel | Chief Financial Officer | Sell | 5,039 | $36,079 |
| 2025-12-29 | Calkins Daniel | Chief Financial Officer | Sell | 80 | $629 |
| 2025-12-18 | Stuglik Brian M | Director | Sell | 592 | $5,411 |
| 2025-12-18 | Paterson Dan | President and CEO | Sell | 393 | $3,592 |
| 2025-12-18 | Gagnon Robert E. | Director | Sell | 283 | $2,587 |
| 2025-12-12 | Paterson Dan | President and CEO | Sell | 2,000 | $20,140 |
Source: SEC Form 4 filings · as of 2026-09-23