Verastem, Inc.
VSTM- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001526119
In the last 90 days, Verastem, Inc. insiders filed 0 open-market purchases and 2 sales; 157 institutions reported holding it in 13F filings for Q2 2026, worth $377.9M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $7.99K in total
- 2
- 13F holdersQ2 2026, +4 vs. previous quarter
- 157
- 13F valueReported value at the end of Q2 2026
- $377.9M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding VSTM, Q2 2026
No superinvestor reported holding VSTM at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Verastem, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 23, 2026 (view filing)8:10 PM ET | Sep 21 | 2 days | Calkins DanielChief Financial Officer | SSale | −55 | $7.70 | −$423.5 | 0.0%118.0K after | 10b5-1 |
| Aug 5, 2026 (view filing)4:37 PM ET | Aug 3 | 2 days | Paterson DanPresident and CEO | SSale | −1.30K | $5.81 | −$7.56K | −0.2%589.9K after | 10b5-1 |
| Jun 24, 2026 (view filing) | Jun 22 | 2 days | Paterson DanPresident and CEO | SSale | −20.9K | $4.18 | −$87.2K | −3.4%591.2K after | 10b5-1 |
| Jun 24, 2026 (view filing) | Jun 22 | 2 days | Calkins DanielChief Financial Officer | SSale | −4.09K | $4.18 | −$17.1K | −3.4%117.2K after | 2 lots10b5-1 |
| May 6, 2026 (view filing) | May 4 | 2 days | Paterson DanPresident and CEO | SSale | −806 | $5.82 | −$4.69K | −0.1%612.1K after | 10b5-1 |
| Feb 5, 2026 (view filing) | Feb 4 | 1 day | Paterson DanPresident and CEO | SSale | −970 | $6.69 | −$6.49K | −0.2%612.9K after | 10b5-1 |
| Jan 14, 2026 (view filing) | Jan 12 | 2 days | Paterson DanPresident and CEO | SSale | −10.3K | $7.16 | −$73.9K | −2.5%400.1K after | 10b5-1 |
| Jan 14, 2026 (view filing) | Jan 12 | 2 days | Calkins DanielChief Financial Officer | SSale | −5.04K | $7.16 | −$36.1K | −4.6%104.7K after | 10b5-1 |
| Dec 29, 2025 (view filing) | Dec 24 | 5 days | Calkins DanielChief Financial Officer | SSale | −80 | $7.86 | −$628.8 | −0.1%109.8K after | 10b5-1 |
| Dec 18, 2025 (view filing) | Dec 16 | 2 days | Stuglik Brian MDirector | SSale | −592 | $9.14 | −$5.41K | −0.6%101.1K after | 10b5-1 |
Top 10 13F holders, Q2 2026
The largest institutional positions in Verastem, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9,192,447 | $35.1M | 0.00% | +2,997,522+48.4% | Added |
| Nantahala Capital Management, LLC | 7,169,640 | $27.4M | 0.83% | +3,584,820+100.0% | Added |
| Armistice Capital, LLC | 7,024,000 | $26.8M | 0.74% | +2,432,000+53.0% | Added |
| RTW Investments, LP | 6,635,793 | $25.3M | 0.22% | +59,487+0.9% | Added |
| Deep Track Capital, LP | 5,740,850 | $21.9M | 0.32% | 00.0% | Unchanged |
| State Street Corp | 5,133,859 | $19.6M | 0.00% | +1,617,208+46.0% | Added |
| Rosalind Advisors, Inc. | 3,986,509 | $15.2M | 5.72% | +1,848,034+86.4% | Added |
| Vanguard Capital Management LLC | 3,851,508 | $14.7M | 0.00% | +528,738+15.9% | Added |
| Stonepine Capital Management, LLC | 3,349,627 | $12.8M | 9.74% | +47,327+1.4% | Added |
| Vanguard Portfolio Management LLC | 3,266,870 | $12.5M | 0.00% | +2,509,995+331.6% | Added |