Verastem, Inc. (VSTM) ownership: Top institutional holder: RTW INVESTMENTS, LP ($34.85M). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| RTW INVESTMENTS, LP | 6576306.00 | $34.85M | 2026-03-31 |
| BlackRock, Inc. | 6194925.00 | $32.83M | 2026-03-31 |
| VANGUARD GROUP INC | 4152706.00 | $32.06M | 2025-12-31 |
| Deep Track Capital, LP | 5740850.00 | $30.43M | 2026-03-31 |
| Polar Capital Holdings Plc | 3925126.00 | $30.30M | 2025-12-31 |
| ARMISTICE CAPITAL, LLC | 4592000.00 | $24.34M | 2026-03-31 |
| Nantahala Capital Management, LLC | 3584820.00 | $19.00M | 2026-03-31 |
| STATE STREET CORP | 3516651.00 | $18.64M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-22 | |
| Sell | null | 2026-06-22 | |
| Sell | null | 2026-06-22 | |
| Sell | null | 2026-05-21 | |
| Sell | null | 2026-05-21 | |
| Sell | null | 2026-05-21 | |
| Sell | null | 2026-05-21 | |
| Sell | null | 2026-05-21 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.