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Verastem, Inc.

VSTM
Healthcare|Biotechnology|US
$8.41
-0.97 (-10.34%)
Cash / Share
$1.71

Ownership Breakdown

90.5%
Float
121.5M
Shares Outstanding
110.0M
Float Shares

Major Holders (40)

Combined: 273.2%

Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.

HolderType% of ClassSharesFiledFiling
Deep Track Capital, LPIA, OO9.99%7,719,390Nov 21, 202513D/G
Deep Track Biotechnology Master Fund, Ltd.Corporation9.99%7,719,390Nov 21, 202513D/G
David KroinHC, IN9.99%7,719,390Nov 21, 202513D/G
BVF Inc/IlCorporation9.99%5,720,831Aug 13, 202513D/G
Lampert Mark NIndividual9.99%5,720,831Aug 13, 202513D/G
BVF Partners L.P.IA, PN9.99%4,279,521Nov 14, 202413D/G
BVF Inc.Corporation9.99%4,279,521Nov 14, 202413D/G
Mark N. LampertIndividual9.99%4,279,521Nov 14, 202413D/G
Roderick WongHC, IN9.90%9,018,724May 15, 202613D/G
RTW Investments, LPIA, PN9.90%9,018,724May 15, 202613D/G
BVF GP Holdings LLCOther9.50%5,418,108Aug 13, 202513D/G
Barclays PLCHolding company8.87%3,949,801Mar 21, 202513D/G
Ramya RaoHolding company8.87%3,949,801Feb 14, 202513D/G
Roderick Wong, M.D.HC, IN8.30%4,245,476May 15, 202513D/G
OrbiMed Capital GP IX LLCOther7.90%3,247,092Nov 14, 202413D/G
Armistice Capital, LLCIA, OO7.76%7,024,000Aug 14, 202613D/G
Steven BoydHC, IN7.76%7,024,000Aug 14, 202613D/G
Soleus GP LLCOther7.30%3,350,692Feb 11, 202513D/G
Biotechnology Value Fund, L.P.Partnership7.20%3,056,359Nov 14, 202413D/G
BlackRock, Inc.Holding company7.00%6,187,012Jul 30, 202613D/G
State Street CorporationHolding company5.80%5,133,859Aug 7, 202613D/G
Foresite Capital Management VI, LLCOther5.10%3,135,120Oct 23, 202513D/G
Vanguard Capital ManagementInvestment adviser4.83%4,382,030Oct 30, 202613D/G
Polar Capital Funds PLC - Biotechnology FundOther4.80%3,700,000Jul 8, 202613D/G
Polar Capital Holdings PlcHolding company4.80%3,700,000Jul 8, 202613D/G
Polar Capital LLPInvestment adviser4.80%3,700,000Jul 8, 202613D/G
Arsani WilliamHC, IN4.80%3,175,000Nov 14, 202513D/G
Logos GP LLCHC, OO4.80%3,175,000Nov 14, 202513D/G
Logos Global Master Fund LPPartnership4.80%3,175,000Nov 14, 202513D/G
Logos Global Management GP LLCHC, OO4.80%3,175,000Nov 14, 202513D/G
Logos Global Management LPIA, PN4.80%3,175,000Nov 14, 202513D/G
Daniel MackHolding company4.72%3,795,473Feb 13, 202613D/G
Nantahala Capital Management, LLCInvestment adviser4.72%3,795,473Feb 13, 202613D/G
Wilmot B. HarkeyHolding company4.72%3,795,473Feb 13, 202613D/G
Stonepine GP, LLCOther4.30%2,670,032Nov 13, 202513D/G
Jon M. PlexicoHC, IN4.30%2,670,032Nov 13, 202513D/G
Stonepine Capital Management, LLCIA, OO4.30%2,670,032Nov 13, 202513D/G
Stonepine Capital, L.P.Partnership4.30%2,670,032Nov 13, 202513D/G
BVF Partners L P/IlIA, PN3.90%2,500,000Aug 13, 202513D/G
Foresite Capital Fund VI LPPartnership3.60%3,146,631May 15, 202613D/G

Insider Trades (100)

Last 4 quarters: 790,450 acquired · 206,722 disposed
InsiderPositionDateTypeSharesPriceValueFiling
Paterson Dandirector, officer: President and CEONov 3, 2026SELL1,299$9.60$12.5KForm 4
Paterson Dandirector, officer: President and CEOSep 30, 2026AWARD106,893——Form 4
Paterson Dandirector, officer: President and CEOOct 1, 2026SELL44,121$8.00$353.0KForm 4
Calkins DanielChief Financial OfficerSep 30, 2026AWARD8,333——Form 4
Calkins DanielChief Financial OfficerOct 1, 2026SELL2,566$8.00$20.5KForm 4
Calkins DanielChief Financial OfficerSep 21, 2026SELL55$7.70$423.50Form 4
Paterson Dandirector, officer: President and CEOAug 3, 2026SELL1,302$5.81$7.6KForm 4
Paterson Dandirector, officer: President and CEOJun 22, 2026SELL20,871$4.18$87.2KForm 4
Calkins DanielChief Financial OfficerJun 22, 2026SELL4,032$4.18$16.9KForm 4
Calkins DanielChief Financial OfficerJun 22, 2026SELL57$4.13$235.41Form 4
BAILEY MICHAEL PdirectorMay 21, 2026AWARD108,000——Form 4
BAILEY MICHAEL Pdirector: May 21, 2026OTHER0——Form 4
Tollefson Karin AnnadirectorMay 21, 2026AWARD36,000——Form 4
Stuglik Brian MdirectorMay 21, 2026AWARD36,000——Form 4
Rowinsky Eric KdirectorMay 21, 2026AWARD36,000——Form 4
ROBERTSON MICHELLEdirectorMay 21, 2026AWARD36,000——Form 4
Kapur AnildirectorMay 21, 2026AWARD36,000——Form 4
Bunn Paul A.directorMay 21, 2026AWARD36,000——Form 4
JOHNSON JOHNdirectorMay 21, 2026AWARD36,000——Form 4
Paterson Dandirector, officer: President and CEOMay 4, 2026SELL806$5.82$4.7KForm 4
Calkins DanielChief Financial OfficerMar 20, 2026AWARD57$5.74$327.18Form 4
Paterson Dandirector, officer: President and CEOFeb 4, 2026SELL970$6.69$6.5KForm 4
Calkins DanielChief Financial OfficerJan 21, 2026AWARD16,665——Form 4
Paterson Dandirector, officer: President and CEOJan 21, 2026AWARD213,785——Form 4
Paterson Dandirector, officer: President and CEOJan 12, 2026SELL10,321$7.16$73.9KForm 4
Calkins DanielChief Financial OfficerJan 12, 2026SELL5,039$7.16$36.1KForm 4
Kauffman Michaeldirector, officer: President of DevelopmentJan 6, 2026AWARD200,000$6.88$1.4MForm 4
Calkins DanielChief Financial OfficerDec 24, 2025SELL80$7.86$628.80Form 4
Stuglik Brian MdirectorDec 16, 2025SELL592$9.14$5.4KForm 4
Paterson Dandirector, officer: President and CEODec 16, 2025SELL393$9.14$3.6KForm 4
Gagnon Robert E.directorDec 16, 2025SELL283$9.14$2.6KForm 4
Paterson Dandirector, officer: President and CEODec 10, 2025SELL2,000$10.07$20.1KForm 4
Paterson Dandirector, officer: President and CEODec 11, 2025SELL2,000$10.00$20.0KForm 4
Paterson Dandirector, officer: President and CEODec 5, 2025SELL2,000$10.61$21.2KForm 4
Paterson Dandirector, officer: President and CEODec 8, 2025SELL2,000$10.50$21.0KForm 4
Paterson Dandirector, officer: President and CEODec 9, 2025SELL2,000$10.25$20.5KForm 4
Paterson Dandirector, officer: President and CEODec 2, 2025SELL2,000$10.32$20.6KForm 4
Paterson Dandirector, officer: President and CEODec 3, 2025SELL2,000$10.00$20.0KForm 4
Paterson Dandirector, officer: President and CEODec 4, 2025SELL2,000$10.00$20.0KForm 4
Paterson Dandirector, officer: President and CEONov 26, 2025SELL2,000$10.32$20.6KForm 4
Paterson Dandirector, officer: President and CEONov 28, 2025SELL2,000$10.79$21.6KForm 4
Paterson Dandirector, officer: President and CEODec 1, 2025SELL2,000$10.39$20.8KForm 4
Bunn Paul A.directorNov 21, 2025OPTION EX.6,250$3.27$20.4KForm 4
Bunn Paul A.directorNov 21, 2025OPTION EX.6,250$3.27$20.4KForm 4
Bunn Paul A.directorNov 21, 2025SELL6,250$10.00$62.5KForm 4
Kauffman MichaeldirectorNov 21, 2025SELL8,550$10.00$85.5KForm 4
Paterson Dandirector, officer: President and CEONov 21, 2025SELL2,000$10.00$20.0KForm 4
Paterson Dandirector, officer: President and CEONov 24, 2025SELL2,000$10.00$20.0KForm 4
Paterson Dandirector, officer: President and CEONov 25, 2025SELL2,000$10.00$20.0KForm 4
Paterson Dandirector, officer: President and CEONov 3, 2025SELL1,299$9.35$12.1KForm 4
Paterson Dandirector, officer: President and CEONov 3, 2025SELL2,000$10.00$20.0KForm 4
Bunn Paul A.directorOct 9, 2025SELL8,333$9.06$75.5KForm 4
Calkins DanielChief Financial OfficerSep 22, 2025SELL57$9.08$517.56Form 4
Calkins DanielChief Financial OfficerSep 24, 2025SELL25$9.23$230.75Form 4
Stuglik Brian MdirectorSep 16, 2025SELL587$9.99$5.9KForm 4
Gagnon Robert E.directorSep 16, 2025SELL281$9.99$2.8KForm 4
Paterson Dandirector, officer: President and CEOSep 16, 2025SELL390$9.99$3.9KForm 4
Paterson Dandirector, officer: President and CEOAug 6, 2025SELL1,332$5.81$7.7KForm 4
Paterson Dandirector, officer: President and CEOJun 20, 2025SELL17,808$5.13$91.4KForm 4
Calkins DanielChief Financial OfficerJun 20, 2025SELL4,110$5.13$21.1KForm 4
Calkins DanielChief Financial OfficerJun 23, 2025SELL25$4.71$117.75Form 4
Paterson Dandirector, officer: President and CEOJun 16, 2025SELL335$5.65$1.9KForm 4
Gagnon Robert E.directorJun 16, 2025SELL284$5.65$1.6KForm 4
Stuglik Brian MdirectorJun 16, 2025SELL594$5.65$3.4KForm 4
ROBERTSON MICHELLEdirectorMay 22, 2025AWARD8,333——Form 4
ROBERTSON MICHELLEdirectorMay 22, 2025AWARD12,500$7.48$93.5KForm 4
Bunn Paul A.directorMay 22, 2025AWARD8,333——Form 4
Bunn Paul A.directorMay 22, 2025AWARD12,500$7.48$93.5KForm 4
Kapur AnildirectorMay 22, 2025AWARD8,333——Form 4
Kapur AnildirectorMay 22, 2025AWARD12,500$7.48$93.5KForm 4
Stuglik Brian MdirectorMay 22, 2025AWARD8,333——Form 4
Stuglik Brian MdirectorMay 22, 2025AWARD12,500$7.48$93.5KForm 4
Gagnon Robert E.directorMay 22, 2025AWARD8,333——Form 4
Gagnon Robert E.directorMay 22, 2025AWARD12,500$7.48$93.5KForm 4
Kauffman MichaeldirectorMay 22, 2025AWARD8,333——Form 4
Kauffman MichaeldirectorMay 22, 2025AWARD12,500$7.48$93.5KForm 4
Tollefson Karin AnnadirectorMay 22, 2025AWARD8,333——Form 4
Tollefson Karin AnnadirectorMay 22, 2025AWARD12,500$7.48$93.5KForm 4
JOHNSON JOHNdirectorMay 22, 2025AWARD8,333——Form 4
JOHNSON JOHNdirectorMay 22, 2025AWARD12,500$7.48$93.5KForm 4
Rowinsky Eric KdirectorMay 22, 2025AWARD8,333——Form 4
Rowinsky Eric KdirectorMay 22, 2025AWARD12,500$7.48$93.5KForm 4
Calkins DanielChief Financial OfficerMay 16, 2025AWARD38,850——Form 4
Calkins DanielChief Financial OfficerMay 20, 2025SELL11,143$8.13$90.6KForm 4
Paterson Dandirector, officer: President and CEOMay 16, 2025AWARD150,000——Form 4
Paterson Dandirector, officer: President and CEOMay 20, 2025SELL58,677$8.13$477.0KForm 4
Paterson Dandirector, officer: President and CEOMay 16, 2025AWARD25,000——Form 4
Paterson Dandirector, officer: President and CEOMay 5, 2025SELL820$7.30$6.0KForm 4
Ros MatthewChief Operating OfficerApr 1, 2025AWARD50,000——Form 4
Calkins DanielChief Financial OfficerMar 20, 2025SELL65$6.89$447.85Form 4
Calkins DanielChief Financial OfficerMar 24, 2025SELL26$7.04$183.04Form 4
Paterson Dandirector, officer: President and CEOMar 17, 2025SELL244$6.95$1.7KForm 4
Gagnon Robert E.directorMar 17, 2025SELL284$6.95$2.0KForm 4
Stuglik Brian MdirectorMar 17, 2025SELL593$6.95$4.1KForm 4
Paterson Dandirector, officer: President and CEOFeb 4, 2025SELL858$5.70$4.9KForm 4
Ros MatthewofficerJan 14, 2025OTHER0——Form 4
Paterson Dandirector, officer: President and CEOJan 10, 2025AWARD25,000——Form 4
Paterson Dandirector, officer: President and CEOJan 13, 2025SELL8,568$5.24$44.9KForm 4
Paterson Dandirector, officer: President and CEOJan 10, 2025AWARD100,000——Form 4
Calkins DanielChief Financial OfficerJan 10, 2025AWARD38,800——Form 4