VSTM Verastem, Inc.
Nasdaq · SEC CIK 1526119 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $787.8K 21 sales by 6 insiders
- Filings on record
- 186 since 2021-11-17, latest 2026-09-23 20:10
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Paterson Dan | Pres, CEO, Dir | — | $502.1K |
| Bunn Paul A. | Dir | — | $138.0K |
| Kauffman Michael | Dir | — | $85.5K |
| Calkins Daniel | CFO | — | $54.2K |
| Stuglik Brian M | Dir | — | $5,411 |
| Gagnon Robert E. | Dir | — | $2,587 |
| Tollefson Karin Anna | Dir | — | — |
| ROBERTSON MICHELLE | Dir | — | — |
| Kapur Anil | Dir | — | — |
| JOHNSON JOHN | Dir | — | — |
Transactions 164
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2026-09-23 20:10 | 2026-09-21 | VSTM | Calkins Daniel | CFO | S - Sale | $7.70 | -55 | 118.0K | -0.0% | -$423.50 |
| T | 2026-08-05 16:37 | 2026-08-03 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $5.81 | -1,302 | 589.9K | -0.2% | -$7,565 |
| T | 2026-06-24 16:45 | 2026-06-22 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $4.18 | -20.9K | 591.2K | -3% | -$87.2K |
| MT | 2026-06-24 16:44 | 2026-06-22 | VSTM | Calkins Daniel | CFO | S - Sale | $4.18 | -4,089 | 117.2K | -3% | -$17.1K |
| 2026-05-27 17:45 | 2026-05-21 | VSTM | BAILEY MICHAEL P | Dir | A - Grant | $0.00 | +108.0K | 108.0K | New | $0 | |
| 2026-05-26 18:23 | 2026-05-21 | VSTM | Tollefson Karin Anna | Dir | A - Grant | $0.00 | +36.0K | 52.7K | +216% | $0 | |
| 2026-05-26 18:22 | 2026-05-21 | VSTM | Stuglik Brian M | Dir | A - Grant | $0.00 | +36.0K | 137.1K | +36% | $0 | |
| 2026-05-26 18:21 | 2026-05-21 | VSTM | Rowinsky Eric K | Dir | A - Grant | $0.00 | +36.0K | 52.7K | +216% | $0 | |
| 2026-05-26 18:19 | 2026-05-21 | VSTM | ROBERTSON MICHELLE | Dir | A - Grant | $0.00 | +36.0K | 52.7K | +216% | $0 | |
| 2026-05-26 18:18 | 2026-05-21 | VSTM | Kapur Anil | Dir | A - Grant | $0.00 | +36.0K | 52.7K | +216% | $0 | |
| 2026-05-26 18:12 | 2026-05-21 | VSTM | Bunn Paul A. | Dir | A - Grant | $0.00 | +36.0K | 44.3K | +432% | $0 | |
| 2026-05-26 18:12 | 2026-05-21 | VSTM | JOHNSON JOHN | Dir | A - Grant | $0.00 | +36.0K | 52.7K | +216% | $0 | |
| T | 2026-05-06 16:01 | 2026-05-04 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $5.82 | -806 | 612.1K | -0.1% | -$4,691 |
| 2026-03-23 | 2026-03-20 | VSTM | Calkins Daniel | CFO | A - Grant | $5.74 | -57 | 121.3K | -0.0% | -$327.18 | |
| 2026-02-05 | 2026-02-04 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $6.69 | -970 | 612.9K | -0.2% | -$6,489 | |
| 2026-01-23 | 2026-01-21 | VSTM | Calkins Daniel | CFO | A - Grant | $0.00 | +16.7K | 121.4K | +16% | $0 | |
| 2026-01-23 | 2026-01-21 | VSTM | Paterson Dan | Pres, CEO, Dir | A - Grant | $0.00 | +213.8K | 613.9K | +53% | $0 | |
| 2026-01-14 | 2026-01-12 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $7.16 | -10.3K | 400.1K | -3% | -$73.9K | |
| 2026-01-14 | 2026-01-12 | VSTM | Calkins Daniel | CFO | S - Sale | $7.16 | -5,039 | 104.7K | -5% | -$36.1K | |
| 2025-12-29 | 2025-12-24 | VSTM | Calkins Daniel | CFO | S - Sale | $7.86 | -80 | 109.8K | -0.1% | -$628.80 | |
| 2025-12-18 | 2025-12-16 | VSTM | Gagnon Robert E. | Dir | S - Sale | $9.14 | -283 | 41.7K | -0.7% | -$2,587 | |
| 2025-12-18 | 2025-12-16 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $9.14 | -393 | 410.4K | -0.1% | -$3,592 | |
| 2025-12-18 | 2025-12-16 | VSTM | Stuglik Brian M | Dir | S - Sale | $9.14 | -592 | 101.1K | -0.6% | -$5,411 | |
| M | 2025-12-12 | 2025-12-10+ | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $10.04 | -4,000 | 410.8K | -1.0% | -$40.1K |
| M | 2025-12-09 | 2025-12-05+ | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $10.45 | -6,000 | 418.8K | -1% | -$62.7K |
| M | 2025-12-04 | 2025-12-02+ | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $10.11 | -6,000 | 420.8K | -1% | -$60.6K |
| M | 2025-12-01 | 2025-11-26+ | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $10.50 | -6,000 | 428.8K | -1% | -$63.0K |
| D | 2025-11-25 | 2025-11-21 | VSTM | Bunn Paul A. | Dir | S - Sale+OE | $10.00 | -6,250 | 2,083 | -75% | -$62.5K |
| D | 2025-11-25 | 2025-11-21 | VSTM | Bunn Paul A. | Dir | M - OptEx | $3.27 | +6,250 | 8,333 | +300% | +$20.4K |
| 2025-11-25 | 2025-11-21 | VSTM | Kauffman Michael | Dir | S - Sale | $10.00 | -8,550 | 8,666 | -50% | -$85.5K | |
| M | 2025-11-25 | 2025-11-21+ | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $10.00 | -6,000 | 436.8K | -1% | -$60.0K |
| M | 2025-11-06 | 2025-11-03 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $9.74 | -3,299 | 438.8K | -0.7% | -$32.1K |
| 2025-10-14 | 2025-10-09 | VSTM | Bunn Paul A. | Dir | S - Sale | $9.06 | -8,333 | 8,333 | -50% | -$75.5K | |
| M | 2025-09-24 | 2025-09-22+ | VSTM | Calkins Daniel | CFO | S - Sale | $9.13 | -82 | 109.8K | -0.1% | -$748.31 |
| 2025-09-18 | 2025-09-16 | VSTM | Gagnon Robert E. | Dir | S - Sale | $9.99 | -281 | 42.0K | -0.7% | -$2,807 | |
| 2025-09-18 | 2025-09-16 | VSTM | Stuglik Brian M | Dir | S - Sale | $9.99 | -587 | 101.7K | -0.6% | -$5,864 | |
| 2025-09-18 | 2025-09-16 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $9.99 | -390 | 442.1K | -0.1% | -$3,896 | |
| 2025-08-06 | 2025-08-06 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $5.81 | -1,332 | 442.5K | -0.3% | -$7,739 | |
| M | 2025-06-24 | 2025-06-20+ | VSTM | Calkins Daniel | CFO | S - Sale | $5.13 | -4,135 | 109.9K | -4% | -$21.2K |
| 2025-06-24 | 2025-06-20 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $5.13 | -17.8K | 443.8K | -4% | -$91.4K | |
| 2025-06-20 | 2025-06-16 | VSTM | Gagnon Robert E. | Dir | S - Sale | $5.65 | -284 | 42.2K | -0.7% | -$1,605 | |
| 2025-06-20 | 2025-06-16 | VSTM | Stuglik Brian M | Dir | S - Sale | $5.65 | -594 | 102.3K | -0.6% | -$3,356 | |
| 2025-06-20 | 2025-06-16 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $5.65 | -335 | 461.6K | -0.1% | -$1,893 | |
| D | 2025-05-27 | 2025-05-22 | VSTM | Kapur Anil | Dir | A - Grant | $0.00 | +8,333 | 16.7K | +100% | $0 |
| D | 2025-05-27 | 2025-05-22 | VSTM | JOHNSON JOHN | Dir | A - Grant | $0.00 | +8,333 | 16.7K | +100% | $0 |
| D | 2025-05-27 | 2025-05-22 | VSTM | Kauffman Michael | Dir | A - Grant | $0.00 | +8,333 | 17.2K | +94% | $0 |
| D | 2025-05-27 | 2025-05-22 | VSTM | Gagnon Robert E. | Dir | A - Grant | $0.00 | +8,333 | 42.5K | +24% | $0 |
| D | 2025-05-27 | 2025-05-22 | VSTM | Rowinsky Eric K | Dir | A - Grant | $0.00 | +8,333 | 16.7K | +100% | $0 |
| D | 2025-05-27 | 2025-05-22 | VSTM | ROBERTSON MICHELLE | Dir | A - Grant | $0.00 | +8,333 | 16.7K | +100% | $0 |
| D | 2025-05-27 | 2025-05-22 | VSTM | Tollefson Karin Anna | Dir | A - Grant | $0.00 | +8,333 | 16.7K | +100% | $0 |
| D | 2025-05-27 | 2025-05-22 | VSTM | Bunn Paul A. | Dir | A - Grant | $0.00 | +8,333 | 16.7K | +100% | $0 |
| D | 2025-05-27 | 2025-05-22 | VSTM | Stuglik Brian M | Dir | A - Grant | $0.00 | +8,333 | 102.9K | +9% | $0 |
| 2025-05-20 | 2025-05-20 | VSTM | Calkins Daniel | CFO | S - Sale | $8.13 | -11.1K | 114.1K | -9% | -$90.6K | |
| 2025-05-20 | 2025-05-16 | VSTM | Calkins Daniel | CFO | A - Grant | $0.00 | -38.9K | 125.2K | -24% | $0 | |
| 2025-05-20 | 2025-05-20 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $8.13 | -58.7K | 462.0K | -11% | -$477.0K | |
| M | 2025-05-20 | 2025-05-16 | VSTM | Paterson Dan | Pres, CEO, Dir | A - Grant | $0.00 | -175.0K | 370.7K | -32% | $0 |
| 2025-05-07 | 2025-05-05 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $7.30 | -820 | 345.7K | -0.2% | -$5,986 | |
| 2025-04-03 | 2025-04-01 | VSTM | Ros Matthew | COO | A - Grant | $0.00 | +50.0K | 50.0K | New | $0 | |
| M | 2025-03-24 | 2025-03-20+ | VSTM | Calkins Daniel | CFO | S - Sale | $6.93 | -91 | 86.3K | -0.1% | -$630.89 |
| 2025-03-19 | 2025-03-17 | VSTM | Gagnon Robert E. | Dir | S - Sale | $6.95 | -284 | 34.2K | -0.8% | -$1,974 | |
| 2025-03-19 | 2025-03-17 | VSTM | Stuglik Brian M | Dir | S - Sale | $6.95 | -593 | 94.6K | -0.6% | -$4,121 | |
| 2025-03-19 | 2025-03-17 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $6.95 | -244 | 346.5K | -0.1% | -$1,696 | |
| 2025-02-05 | 2025-02-04 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $5.70 | -858 | 346.7K | -0.2% | -$4,891 | |
| 2025-01-14 | 2025-01-10 | VSTM | Calkins Daniel | CFO | A - Grant | $0.00 | +38.8K | 86.4K | +81% | $0 | |
| M | 2025-01-14 | 2025-01-10 | VSTM | Paterson Dan | Pres, CEO, Dir | A - Grant | $0.00 | +125.0K | 356.1K | +54% | $0 |
| 2025-01-14 | 2025-01-13 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $5.24 | -8,568 | 347.6K | -2% | -$44.9K | |
| 2025-01-08 | 2025-01-06 | VSTM | Calkins Daniel | CFO | S - Sale | $6.94 | -6 | 47.6K | -0.0% | -$41.64 | |
| M | 2024-12-26 | 2024-12-20+ | VSTM | Calkins Daniel | CFO | S - Sale | $4.21 | -93 | 47.4K | -0.2% | -$391.58 |
| M | 2024-12-20 | 2024-12-16+ | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $4.47 | -427 | 231.3K | -0.2% | -$1,907 |
| M | 2024-12-20 | 2024-12-16+ | VSTM | Gagnon Robert E. | Dir | S - Sale | $4.49 | -415 | 34.5K | -1% | -$1,862 |
| M | 2024-12-20 | 2024-12-16+ | VSTM | Stuglik Brian M | Dir | S - Sale | $4.48 | -929 | 95.2K | -1.0% | -$4,161 |
| 2024-11-07 | 2024-11-05 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $3.84 | -812 | 231.6K | -0.3% | -$3,118 | |
| 2024-10-09 | 2024-10-07 | VSTM | Calkins Daniel | CFO | S - Sale | $2.86 | -6 | 47.5K | -0.0% | -$17.16 | |
| M | 2024-09-24 | 2024-09-20+ | VSTM | Calkins Daniel | CFO | S - Sale | $2.76 | -93 | 47.5K | -0.2% | -$257.04 |
| 2024-09-20 | 2024-09-19 | VSTM | Gagnon Robert E. | Dir | S - Sale | $2.79 | -131 | 34.9K | -0.4% | -$365.49 | |
| 2024-09-20 | 2024-09-19 | VSTM | Stuglik Brian M | Dir | S - Sale | $2.79 | -336 | 96.1K | -0.3% | -$937.44 | |
| 2024-09-20 | 2024-09-19 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $2.79 | -184 | 232.4K | -0.1% | -$513.36 | |
| 2024-09-18 | 2024-09-16 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $2.80 | -246 | 232.6K | -0.1% | -$688.80 | |
| 2024-09-18 | 2024-09-16 | VSTM | Stuglik Brian M | Dir | S - Sale | $2.80 | -600 | 96.4K | -0.6% | -$1,680 | |
| 2024-09-18 | 2024-09-16 | VSTM | Gagnon Robert E. | Dir | S - Sale | $2.80 | -287 | 35.0K | -0.8% | -$803.60 | |
| 2024-08-07 | 2024-08-05 | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $2.16 | -3,245 | 232.8K | -1% | -$7,009 | |
| 2024-07-11 | 2024-07-09 | VSTM | Calkins Daniel | CFO | S - Sale | $2.62 | -7 | 47.6K | -0.0% | -$18.34 | |
| 2024-06-26 | 2024-06-24 | VSTM | Calkins Daniel | CFO | S - Sale | $3.15 | -28 | 47.3K | -0.1% | -$88.20 | |
| M | 2024-06-20 | 2024-06-17+ | VSTM | Paterson Dan | Pres, CEO, Dir | S - Sale | $3.37 | -427 | 236.1K | -0.2% | -$1,439 |
| 2024-06-20 | 2024-06-18 | VSTM | Paterson Dan | Pres, CEO, Dir | A - Grant | $0.00 | +150.0K | 236.2K | +174% | $0 | |
| D | 2024-06-20 | 2024-06-18 | VSTM | ROBERTSON MICHELLE | Dir | A - Grant | $0.00 | +8,333 | 8,333 | New | $0 |
| D | 2024-06-20 | 2024-06-18 | VSTM | JOHNSON JOHN | Dir | A - Grant | $0.00 | +8,333 | 8,333 | New | $0 |
| D | 2024-06-20 | 2024-06-18 | VSTM | Tollefson Karin Anna | Dir | A - Grant | $0.00 | +8,333 | 8,333 | New | $0 |
| DM | 2024-06-20 | 2024-06-17+ | VSTM | Gagnon Robert E. | Dir | S - Sale | $3.40 | -414 | 35.3K | -1% | -$1,408 |
| D | 2024-06-20 | 2024-06-18 | VSTM | Gagnon Robert E. | Dir | A - Grant | $0.00 | +8,333 | 35.4K | +31% | $0 |
| D | 2024-06-20 | 2024-06-18 | VSTM | Kauffman Michael | Dir | A - Grant | $0.00 | +8,333 | 8,883 | +1,515% | $0 |
| 2024-06-20 | 2024-06-18 | VSTM | Calkins Daniel | CFO | A - Grant | $0.00 | +38.9K | 47.4K | +455% | $0 | |
| 2024-06-20 | 2024-06-20 | VSTM | Calkins Daniel | CFO | S - Sale | $3.16 | -67 | 47.3K | -0.1% | -$211.72 | |
| D | 2024-06-20 | 2024-06-18 | VSTM | Bunn Paul A. | Dir | A - Grant | $0.00 | +8,333 | 8,333 | New | $0 |
| DM | 2024-06-20 | 2024-06-17+ | VSTM | Stuglik Brian M | Dir | S - Sale | $3.39 | -928 | 97.0K | -0.9% | -$3,145 |
| D | 2024-06-20 | 2024-06-18 | VSTM | Stuglik Brian M | Dir | A - Grant | $0.00 | +8,333 | 97.4K | +9% | $0 |
| D | 2024-06-20 | 2024-06-18 | VSTM | Kapur Anil | Dir | A - Grant | $0.00 | +8,333 | 8,333 | New | $0 |
| D | 2024-06-20 | 2024-06-18 | VSTM | Rowinsky Eric K | Dir | A - Grant | $0.00 | +8,333 | 8,333 | New | $0 |
| 2024-04-08 | 2024-04-05 | VSTM | Calkins Daniel | CFO | S - Sale | $10.87 | -6 | 8,535 | -0.1% | -$65.22 | |
| 2024-03-27 | 2024-03-25 | VSTM | Calkins Daniel | CFO | S - Sale | $12.02 | -25 | 8,541 | -0.3% | -$300.50 |
Purchase Sale Sale after option exercise All abbreviations