Companies / Verastem, Inc.
Verastem, Inc.
Nasdaq: VSTMCIK 1526119NEEDHAM, MA
Financials · FY2025
Ownership
90.6M shares outstanding · as of Aug 3, 2026
Ownership
| Insiders | 0.99% | 894,912 |
| 10%+ / strategic | 13.33% | 12,068,758 |
| Institutions | 80.68% | 73,062,557 |
| Public float | 5.01% | 4,537,214 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 5
View all →| Insider | % of shares | Shares |
|---|---|---|
Paterson DanCEOPresident and CEO · Director | 0.68% | 612,919 |
Calkins DanielChief Financial Officer | 0.13% | 121,327 |
Bailey Michael PDirector | 0.12% | 108,000 |
Rowinsky Eric KDirector | 0.06% | 52,666 |
Kauffman MichaelPresident of Development · Director | — | — |
Institutional holders 152
View all →| Holder | Value | % of shares |
|---|---|---|
| $50.77M | 7.26% | |
| $44.32M | 6.34% | |
| $35.12M | 10.15% | |
| $32.06M | 4.59% | |
| $30.30M | 4.33% | |
| $27.30M | 3.90% | |
| $24.20M | 3.46% | |
| $21.09M | 3.02% | |
| $19.61M | 5.67% | |
| $18.17M | 2.60% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Jan 12, 2026 | Paterson Dan CEO | Sell | Common Stock | $73.9K | -10K -2.51% | 400,104 0.44% of shares | low |
| Jan 12, 2026 | Calkins Daniel Executive | Sell | Common Stock | $36.1K | -5K -4.59% | 104,719 0.12% of shares | low |
| Feb 4, 2026 | Paterson Dan CEO | Sell | Common Stock | $6.5K | -970 -0.16% | 612,919 0.68% of shares | low |
| Mar 20, 2026 | Calkins Daniel Executive | Grant | Common Stock | $327 | -57 -0.05% | 121,327 0.13% of shares | low |
| May 21, 2026 | Rowinsky Eric K Director | Grant | Common Stock | $0 | +36K +216.01% | 52,666 0.06% of shares | low |
| May 21, 2026 | Bailey Michael P Director | Grant | Common Stock | $0 | +108K | 108,000 0.12% of shares | low |
| Jan 21, 2026 | Paterson Dan CEO | Grant | Common Stock | $0 | +214K +53.43% | 613,889 0.68% of shares | low |
| Jan 21, 2026 | Calkins Daniel Executive | Grant | Common Stock | $0 | +17K +15.91% | 121,384 0.13% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| State Street Corporation | Passive13G | — |
| Vanguard Group Inc | Passive13G/A | — |
| Balyasny Asset Management L.P. | Passive13G/A | — |
| Nantahala Capital Management, LLC | Passive13G/A | — |
| RTW Investments, LP | Passive13G/A | — |
| Point72 Asset Management, L.P. | Passive13G/A | — |
| Polar Capital Holdings Plc | Passive13G | — |
| Armistice Capital, LLC | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| VSTM | — | 92337C203 |