VSTM Verastem, Inc.
Verastem, Inc. (VSTM) Institutional Ownership
What the institutions did with VSTM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 9.2M | 9.3% |
| Nantahala Capital Management, LLC | 7.2M | 7.3% |
| ARMISTICE CAPITAL, LLC | 7.0M | 7.1% |
| RTW INVESTMENTS, LP | 6.6M | 6.7% |
| Deep Track Capital, LP | 5.7M | 5.8% |
| STATE STREET CORP | 5.1M | 5.2% |
| Rosalind Advisors, Inc. | 4.0M | 4.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.9M | 3.9% |
| Stonepine Capital Management, LLC | 3.3M | 3.4% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.3M | 3.3% |
| Foresite Capital Management VI LLC | 3.1M | 3.2% |
| GOLDMAN SACHS GROUP INC | 2.7M | 2.8% |
| BAKER BROS. ADVISORS LP | 2.5M | 2.5% |
| Alyeska Investment Group, L.P. | 2.3M | 2.3% |
| MILLENNIUM MANAGEMENT LLC | 2.1M | 2.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.1M | 2.1% |
| AIGH Capital Management LLC | 1.9M | 1.9% |
| Opaleye Management Inc. | 1.8M | 1.8% |
| Balyasny Asset Management L.P. | 1.7M | 1.7% |
| Qube Research & Technologies Ltd | 1.6M | 1.6% |
| ACORN CAPITAL ADVISORS, LLC | 1.5M | 1.5% |
| NEXTBio Capital Management LP | 1.3M | 1.3% |
| FRANKLIN RESOURCES INC | 1.1M | 1.1% |
| Pinnacle Financial Partners, Inc. | 1.1M | 1.1% |
| AQR CAPITAL MANAGEMENT LLC | 934.6K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Nantahala Capital Management, LLC | Increased | 3.6M | 7.2M | +3.6M |
| BlackRock, Inc. | Increased | 6.2M | 9.2M | +3.0M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 756.9K | 3.3M | +2.5M |
| ARMISTICE CAPITAL, LLC | Increased | 4.6M | 7.0M | +2.4M |
| CITADEL ADVISORS LLC | Reduced | 2.3M | 317.3K | -2.0M |
| BAKER BROS. ADVISORS LP | Increased | 584.8K | 2.5M | +1.9M |
| Rosalind Advisors, Inc. | Increased | 2.1M | 4.0M | +1.8M |
| Opaleye Management Inc. | New | 0 | 1.8M | +1.8M |
| STATE STREET CORP | Increased | 3.5M | 5.1M | +1.6M |
| MORGAN STANLEY | Reduced | 2.2M | 715.8K | -1.5M |
| Balyasny Asset Management L.P. | Increased | 409.8K | 1.7M | +1.3M |
| GOLDMAN SACHS GROUP INC | Increased | 1.5M | 2.7M | +1.2M |
| J. Goldman & Co LP | Reduced | 1.7M | 650.1K | -1.0M |
| Logos Global Management LP | Sold Out | 1.0M | 0 | -1.0M |
| AQR CAPITAL MANAGEMENT LLC | Increased | 66.1K | 934.6K | +868.5K |
| Ishara Investments LP | Sold Out | 820.0K | 0 | -820.0K |
| Longaeva Partners L.P. | Sold Out | 807.8K | 0 | -807.8K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 667.0K | 50.0K | -617.1K |
| Pinnacle Financial Partners, Inc. | Increased | 495.3K | 1.1M | +591.2K |
| JANE STREET GROUP, LLC | Sold Out | 570.6K | 0 | -570.6K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 3.3M | 3.9M | +528.7K |
| BANK OF AMERICA CORP /DE/ | Increased | 417.0K | 890.0K | +473.0K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 244.1K | 666.9K | +422.8K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.7M | 2.1M | +356.6K |
| Hennion & Walsh Asset Management, Inc. | Increased | 221.3K | 569.2K | +347.9K |
| Y-Intercept (Hong Kong) Ltd | Sold Out | 345.6K | 0 | -345.6K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 2.4M | 2.1M | -334.0K |
| SPHERA FUNDS MANAGEMENT LTD. | Increased | 343.7K | 632.6K | +289.0K |
| Squarepoint Ops LLC | Sold Out | 270.6K | 0 | -270.6K |
| Diametric Capital, LP | New | 0 | 265.5K | +265.5K |
| Virtus Investment Advisers, LLC | Increased | 28.4K | 283.6K | +255.3K |
| ALGERT GLOBAL LLC | Reduced | 305.2K | 51.3K | -253.9K |
| Alyeska Investment Group, L.P. | Increased | 2.1M | 2.3M | +239.6K |
| DIMENSIONAL FUND ADVISORS LP | New | 0 | 235.2K | +235.2K |
| Exome Asset Management LLC | Reduced | 636.7K | 429.0K | -207.7K |
| Jump Financial, LLC | Increased | 118.5K | 307.5K | +189.0K |
| Torray Investment Partners LLC | Increased | 299.0K | 477.5K | +178.5K |
| XTX Topco Ltd | Increased | 395.8K | 561.8K | +166.0K |
| FMR LLC | Increased | 473.7K | 626.3K | +152.6K |
| Qube Research & Technologies Ltd | Increased | 1.5M | 1.6M | +152.5K |
| Janney Montgomery Scott LLC | New | 0 | 152.4K | +152.4K |
| Birchview Capital, LP | Sold Out | 150.0K | 0 | -150.0K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 91.8K | 238.4K | +146.7K |
| NORTHERN TRUST CORP | Increased | 515.8K | 651.5K | +135.7K |
| PRELUDE CAPITAL MANAGEMENT, LLC | Reduced | 144.7K | 19.7K | -125.0K |
| Seven Fleet Capital Management LP | Sold Out | 123.4K | 0 | -123.4K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 494.7K | 616.9K | +122.2K |
| Susquehanna Portfolio Strategies, LLC | Sold Out | 114.9K | 0 | -114.9K |
| CITIGROUP INC | Increased | 12.3K | 120.2K | +108.0K |
| Quarry LP | Sold Out | 100.0K | 0 | -100.0K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 151.2K | 51.7K | -99.5K |
| ExodusPoint Capital Management, LP | Reduced | 184.0K | 99.2K | -84.7K |
| CANTOR FITZGERALD, L. P. | Reduced | 363.1K | 280.0K | -83.1K |
| AIGH Capital Management LLC | Reduced | 2.0M | 1.9M | -73.0K |
| Virtu Financial LLC | Increased | 10.1K | 82.3K | +72.2K |
| Palo Alto Investors LP | Increased | 246.1K | 309.7K | +63.6K |
| UBS Group AG | Increased | 543.7K | 604.5K | +60.8K |
| RTW INVESTMENTS, LP | Increased | 6.6M | 6.6M | +59.5K |
| Jefferies Financial Group Inc. | Reduced | 556.0K | 496.5K | -59.5K |
| Jain Global LLC | New | 0 | 55.2K | +55.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.