Verastem Ownership | Who Owns Verastem?
Verastem Ownership Summary
Verastem is owned by 12.54% institutional investors, 0.67% insiders, and 86.79% retail investors. Rtw investments, lp is the largest institutional shareholder, holding 9.49% of VSTM shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.76% of its assets in Verastem shares.
VSTM Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Verastem | 12.54% | 0.67% | 86.79% |
| Sector | Healthcare Stocks | 35.58% | 11.87% | 52.55% |
| Industry | Biotech Stocks | 35.75% | 11.83% | 52.41% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Rtw investments, lp | 6.58M | 9.49% | $34.85M |
| Blackrock funding, inc. /de | 6.19M | 8.94% | $32.83M |
| Deep track capital, lp | 5.74M | 8.28% | $30.43M |
| Armistice capital | 4.59M | 6.63% | $24.34M |
| Vanguard group | 4.15M | 5.68% | $32.06M |
| Nantahala capital management | 3.58M | 5.17% | $19.00M |
| State street | 3.52M | 5.07% | $18.64M |
| Stonepine capital management | 3.30M | 4.76% | $17.50M |
| Foresite capital management vi | 3.15M | 4.54% | $16.68M |
| Millennium management | 2.41M | 3.48% | $12.78M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Stonepine capital management | 3.30M | 7.01% | $17.50M |
| Rosalind advisors | 2.14M | 4.55% | $11.33M |
| Foresite capital management vi | 3.15M | 3.62% | $16.68M |
| Acorn capital advisors | 1.47M | 2.21% | $7.79M |
| Exome asset management | 636.70K | 1.75% | $3.37M |
| Aigh capital management | 2.00M | 1.45% | $10.60M |
| Nantahala capital management | 3.58M | 0.70% | $19.00M |
| Deep track capital, lp | 5.74M | 0.50% | $30.43M |
| Birchview capital, lp | 150.00K | 0.45% | $795.00K |
| Armistice capital | 4.59M | 0.43% | $24.34M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Nantahala capital management | 3.58M | 0.70% | 3.12M |
| Alyeska investment group | 2.05M | 0.03% | 2.05M |
| Aigh capital management | 2.00M | 1.45% | 2.00M |
| Millennium management | 2.41M | 0.01% | 1.86M |
| Blackrock funding, inc. /de | 6.19M | 0.00% | 1.44M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Polar capital | - | - | -3.93M |
| Bvf inc/il | - | - | -3.40M |
| Balyasny asset management | 409.78K | 0.00% | -2.79M |
| Farallon capital management | - | - | -2.00M |
| Octagon capital advisors lp | - | - | -1.72M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Alyeska investment group | 2.05M | 0.03% | 2.05M | $10.87M |
| Aigh capital management | 2.00M | 1.45% | 2.00M | $10.60M |
| Longaeva partners | 807.75K | 0.16% | 807.75K | $4.28M |
| Baker bros. advisors lp | 584.76K | 0.02% | 584.76K | $3.10M |
| Vanguard fiduciary trust | 494.69K | 0.00% | 494.69K | $2.62M |
Sold Out
| Holder | Change |
|---|---|
| Evermay wealth management | -6.00 |
| Grove bank & trust | -8.00 |
| Federation des caisses desjardins du quebec | -13.00 |
| Wealthspire advisors | -20.00 |
| True wealth design | -23.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 56 | -62.67% | 10,462,403 | -86.32% | 12 | 0.11% | 35 | -63.54% | 13 | -58.06% |
| Dec 31, 2025 | 81 | -34.15% | 38,606,066 | -35.25% | 52 | 0.65% | 52 | -24.64% | 16 | -56.76% |
| Sep 30, 2025 | 118 | 2.61% | 56,748,047 | 7.93% | 85 | 1.36% | 66 | -12.00% | 36 | 63.64% |
| Jun 30, 2025 | 115 | 12.75% | 52,579,832 | 21.50% | 79 | 1.25% | 74 | 34.55% | 22 | -18.52% |
| Mar 31, 2025 | 102 | 9.68% | 43,276,247 | 24.92% | 79 | 1.08% | 55 | -17.91% | 27 | 200.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 2.42M | 2.76% | - |
| State Street® SPDR® S&P® Biotech ETF | 2.29M | 2.61% | -22.60K |
| RTW Biotech Opportunities Ord | 1.92M | 2.55% | 1.92M |
| Vanguard US Total Market Shares ETF | 1.22M | 2.37% | - |
| SPDR® S&P Biotech ETF | 1.28M | 2.08% | 2.85K |
| iShares Russell 2000 ETF | 1.55M | 1.76% | 13.07K |
| Kennedy Micro Cap | 547.19K | 1.36% | 359.19K |
| Vanguard Institutional Extnd Mkt Idx Tr | 825.98K | 0.94% | 5.12K |
| Polar Capital Biotech S Inc | 787.74K | 0.90% | -2.71M |
| Franklin Biotechnology Discv A(acc)USD | 703.22K | 0.80% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| May 04, 2026 | Paterson Dan | President and CEO | Sell | $4.69K |
| Feb 04, 2026 | Paterson Dan | President and CEO | Sell | $6.49K |
| Jan 12, 2026 | Paterson Dan | President and CEO | Sell | $73.90K |
| Jan 12, 2026 | Calkins Daniel | Chief Financial Officer | Sell | $36.08K |
| Dec 24, 2025 | Calkins Daniel | Chief Financial Officer | Sell | $628.80 |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 1 |
| 2026 Q1 | - | 3 |
| 2025 Q4 | - | 23 |
| 2025 Q3 | - | 6 |
| 2025 Q2 | - | 9 |
VSTM Ownership FAQ
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