Verastem, Inc. insider trading
VSTM$7.75-0.25 (-3.13% today)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 6, 2025 to Oct 6, 2026. Price (-10.0%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ3 '25Q4 '25Q1 '26Q2 '26Q3 '26Q4 '26
Unlock quarterly net flowKey players
- DPDan Paterson0.7207%
- BMBrian M. Stuglik0.1514%
- DCDaniel Calkins0.1367%
- MPMichael P. Bailey0.1193%
- EKEric K. Rowinsky0.0582%
- JJJohn Johnson0.0582%
- MRMichelle Robertson0.0582%
- KAKarin Anna Tollefson0.0582%
- AKAnil Kapur0.0582%
- MRMatthew Ros0.0552%
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| VSTM | Dan Paterson | Open market sell$353K | -6.3% | $8.00 | $353K | Oct 1, 2026 | Oct 2, 2026 |
| VSTM | Daniel Calkins | Open market sell$20.5K | -2.0% | $8.00 | $20.5K | Oct 1, 2026 | Oct 2, 2026 |
| VSTM | Daniel Calkins | Open market sell$424 | -0.1% | $7.70 | $424 | Sep 21, 2026 | Sep 23, 2026 |
| VSTM | Dan Paterson | Open market sell$7.56K | -0.2% | $5.81 | $7.56K | Aug 3, 2026 | Aug 5, 2026 |
| VSTM | Dan Paterson | Open market sell$87.2K | -3.4% | $4.18 | $87.2K | Jun 22, 2026 | Jun 24, 2026 |
| VSTM | Daniel Calkins | Open market sell$235 | -0.1% | $4.13 | $235 | Jun 22, 2026 | Jun 24, 2026 |
| VSTM | Daniel Calkins | Open market sell$16.9K | -3.3% | $4.18 | $16.9K | Jun 22, 2026 | Jun 24, 2026 |
| VSTM | Dan Paterson | Open market sell$4.69K | -0.1% | $5.82 | $4.69K | May 4, 2026 | May 6, 2026 |
| VSTM | Dan Paterson | Open market sell$6.49K | -0.2% | $6.69 | $6.49K | Feb 4, 2026 | Feb 5, 2026 |
| VSTM | Dan Paterson | Open market sell$73.9K | -2.5% | $7.16 | $73.9K | Jan 12, 2026 | Jan 14, 2026 |
| VSTM | Daniel Calkins | Open market sell$36.1K | -4.6% | $7.16 | $36.1K | Jan 12, 2026 | Jan 14, 2026 |
| VSTM | Daniel Calkins | Open market sell$629 | -0.1% | $7.86 | $629 | Dec 24, 2025 | Dec 29, 2025 |
| VSTM | Brian M. Stuglik | Open market sell$5.41K | -0.6% | $9.14 | $5.41K | Dec 16, 2025 | Dec 18, 2025 |
| VSTM | Dan Paterson | Open market sell$3.59K | -0.1% | $9.14 | $3.59K | Dec 16, 2025 | Dec 18, 2025 |
| VSTM | Robert E. Gagnon | Open market sell$2.59K | -0.7% | $9.14 | $2.59K | Dec 16, 2025 | Dec 18, 2025 |
| VSTM | Dan Paterson | Open market sell$20K | -0.5% | $10.00 | $20K | Dec 11, 2025 | Dec 12, 2025 |
| VSTM | Dan Paterson | Open market sell$20.1K | -0.5% | $10.07 | $20.1K | Dec 10, 2025 | Dec 12, 2025 |
| VSTM | Dan Paterson | Open market sell$20.5K | -0.5% | $10.25 | $20.5K | Dec 9, 2025 | Dec 9, 2025 |
| VSTM | Dan Paterson | Open market sell$21K | -0.5% | $10.50 | $21K | Dec 8, 2025 | Dec 9, 2025 |
| VSTM | Dan Paterson | Open market sell$21.2K | -0.5% | $10.61 | $21.2K | Dec 5, 2025 | Dec 9, 2025 |
| VSTM | Dan Paterson | Open market sell$20K | -0.5% | $10.00 | $20K | Dec 4, 2025 | Dec 4, 2025 |
| VSTM | Dan Paterson | Open market sell$20K | -0.5% | $10.00 | $20K | Dec 3, 2025 | Dec 4, 2025 |
| VSTM | Dan Paterson | Open market sell$20.6K | -0.5% | $10.32 | $20.6K | Dec 2, 2025 | Dec 4, 2025 |
| VSTM | Dan Paterson | Open market sell$20.8K | -0.5% | $10.39 | $20.8K | Dec 1, 2025 | Dec 1, 2025 |
| VSTM | Dan Paterson | Open market sell$21.6K | -0.5% | $10.79 | $21.6K | Nov 28, 2025 | Dec 1, 2025 |
| VSTM | Dan Paterson | Open market sell$20.6K | -0.5% | $10.32 | $20.6K | Nov 26, 2025 | Dec 1, 2025 |
| VSTM | Dan Paterson | Open market sell$20K | -0.5% | $10.00 | $20K | Nov 25, 2025 | Nov 25, 2025 |
| VSTM | Dan Paterson | Open market sell$20K | -0.5% | $10.00 | $20K | Nov 24, 2025 | Nov 25, 2025 |
| VSTM | Michael Kauffman | Open market sell$85.5K | -49.7% | $10.00 | $85.5K | Nov 21, 2025 | Nov 25, 2025 |
| VSTM | Dan Paterson | Open market sell$20K | -0.5% | $10.00 | $20K | Nov 21, 2025 | Nov 25, 2025 |
| VSTM | Dan Paterson | Open market sell$20K | -0.5% | $10.00 | $20K | Nov 3, 2025 | Nov 6, 2025 |
| VSTM | Dan Paterson | Open market sell$12.1K | -0.3% | $9.35 | $12.1K | Nov 3, 2025 | Nov 6, 2025 |
| VSTM | Paul A. Bunn | Open market sell$75.5K | -50.0% | $9.06 | $75.5K | Oct 9, 2025 | Oct 14, 2025 |