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Who owns Verastem (VSTM) stock

148 funds reported Verastem (VSTM) shares in their latest 13F filings, worth $420M in all. The largest holder is BlackRock ($35.1M). Last quarter 92 funds added to their stakes and 57 cut them.

Largest holders of VSTM (13F)Largest holders of VSTM (13F)BlackRock$35.1MVanguard Group$32.1MNantahala Capital Management, LLC$27.4MArmistice Capital, LLC$26.8MRTW Investments, LP$25.3MDeep Track Capital, LP$21.9MState Street$19.6MRosalind Advisors$15.2MVanguard Capital Management LLC$14.7MStonepine Capital Management, LLC$12.8M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock9,192,447$35.1Mincrease2026-06-30
Vanguard Group4,152,706$32.1Mincrease2025-12-31
Nantahala Capital Management, LLC7,169,640$27.4Mincrease2026-06-30
Armistice Capital, LLC7,024,000$26.8Mincrease2026-06-30
RTW Investments, LP6,635,793$25.3Mincrease2026-06-30
Deep Track Capital, LP5,740,850$21.9Munchanged2026-06-30
State Street5,133,859$19.6Mincrease2026-06-30
Rosalind Advisors3,986,509$15.2Mincrease2026-06-30
Vanguard Capital Management LLC3,851,508$14.7Mincrease2026-06-30
Stonepine Capital Management, LLC3,349,627$12.8Mincrease2026-06-30
Vanguard Portfolio Management LLC3,266,870$12.5Mincrease2026-06-30
Foresite Capital Management VI LLC3,146,631$12.0Munchanged2026-06-30
Goldman Sachs Group2,721,178$10.4Mincrease2026-06-30
Baker Bros. Advisors LP2,499,338$9.5Mincrease2026-06-30
Aigh Capital Management LLC1,121,682$9.0Mdecrease2026-09-30

Verastem's latest quarter

Verastem, Q3 2026: revenue $24.0M (+114% year over year), operating margin -313.3%, net loss $74.7M, operating cash flow −$33.6M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most VSTM stock?

By the latest 13F filings: BlackRock ($35.1M); Vanguard Group ($32.1M); Nantahala Capital Management, LLC ($27.4M); Armistice Capital, LLC ($26.8M); RTW Investments, LP ($25.3M).

What is the short interest in VSTM?

17,201,810 shares were sold short at the 2026-10-15 settlement, 14.95% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.