VSTM Insider Trading

Verastem, Inc. · full profile →Last filing Mar 20, 2026
Net Selling · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$117K
2 insiders
Net Insider Flow
-$117K
open market, 180d
Reporting Insiders
2
4 P/S transactions
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Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Mar 20, 2026Calkins DanielChief Financial OfficerGrant(A)57$5.74$327
Feb 4, 2026Paterson DanPresident and CEO, DirectorSell(S)970$6.69$6K
Jan 21, 2026Paterson DanPresident and CEO, DirectorGrant(A)214K$0
Jan 21, 2026Calkins DanielChief Financial OfficerGrant(A)17K$0
Jan 12, 2026Calkins DanielChief Financial OfficerSell(S)5K$7.16$36K
Jan 12, 2026Paterson DanPresident and CEO, DirectorSell(S)10K$7.16$74K
Jan 6, 2026Kauffman MichaelPresident of Development, DirectorGrant(A)200K$0
Dec 24, 2025Calkins DanielChief Financial OfficerSell(S)80$7.86$629
Dec 16, 2025Gagnon Robert E.DirectorSell(S)283$9.14$3K
Dec 16, 2025Paterson DanPresident and CEO, DirectorSell(S)393$9.14$4K
Dec 16, 2025Stuglik Brian MDirectorSell(S)592$9.14$5K
Dec 11, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.00$20K
Dec 10, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.07$20K
Dec 9, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.25$21K
Dec 8, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.50$21K
Dec 5, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.61$21K
Dec 4, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.00$20K
Dec 3, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.00$20K
Dec 2, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.32$21K
Dec 1, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.39$21K
Nov 28, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.79$22K
Nov 26, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.32$21K
Nov 25, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.00$20K
Nov 24, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.00$20K
Nov 21, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.00$20K
Nov 21, 2025Kauffman MichaelDirectorSell(S)9K$10.00$86K
Nov 21, 2025Bunn Paul A.DirectorSell(S)6K$10.00$63K
Nov 21, 2025Bunn Paul A.DirectorOption exercise(M)6K$3.27$20K
Nov 21, 2025Bunn Paul A.DirectorOption exercise(M)6K$0
Nov 3, 2025Paterson DanPresident and CEO, DirectorSell(S)1K$9.35$12K
Nov 3, 2025Paterson DanPresident and CEO, DirectorSell(S)2K$10.00$20K
Oct 9, 2025Bunn Paul A.DirectorSell(S)8K$9.06$75K
Sep 24, 2025Calkins DanielChief Financial OfficerSell(S)25$9.23$231
Sep 22, 2025Calkins DanielChief Financial OfficerSell(S)57$9.08$518
Sep 16, 2025Paterson DanPresident and CEO, DirectorSell(S)390$9.99$4K
Sep 16, 2025Gagnon Robert E.DirectorSell(S)281$9.99$3K
Sep 16, 2025Stuglik Brian MDirectorSell(S)587$9.99$6K
Aug 6, 2025Paterson DanPresident and CEO, DirectorSell(S)1K$5.81$8K
Jun 23, 2025Calkins DanielChief Financial OfficerSell(S)25$4.71$118
Jun 20, 2025Calkins DanielChief Financial OfficerSell(S)4K$5.13$21K
Jun 20, 2025Paterson DanPresident and CEO, DirectorSell(S)18K$5.13$91K
Jun 16, 2025Stuglik Brian MDirectorSell(S)594$5.65$3K
Jun 16, 2025Gagnon Robert E.DirectorSell(S)284$5.65$2K
Jun 16, 2025Paterson DanPresident and CEO, DirectorSell(S)335$5.65$2K
May 22, 2025Rowinsky Eric KDirectorGrant(A)8K$0
May 22, 2025Rowinsky Eric KDirectorGrant(A)13K$0
May 22, 2025Johnson JohnDirectorGrant(A)8K$0
May 22, 2025Johnson JohnDirectorGrant(A)13K$0
May 22, 2025Tollefson Karin AnnaDirectorGrant(A)8K$0
May 22, 2025Tollefson Karin AnnaDirectorGrant(A)13K$0
May 22, 2025Kauffman MichaelDirectorGrant(A)8K$0
May 22, 2025Kauffman MichaelDirectorGrant(A)13K$0
May 22, 2025Gagnon Robert E.DirectorGrant(A)8K$0
May 22, 2025Gagnon Robert E.DirectorGrant(A)13K$0
May 22, 2025Stuglik Brian MDirectorGrant(A)8K$0
May 22, 2025Stuglik Brian MDirectorGrant(A)13K$0
May 22, 2025Kapur AnilDirectorGrant(A)8K$0
May 22, 2025Kapur AnilDirectorGrant(A)13K$0
May 22, 2025Bunn Paul A.DirectorGrant(A)8K$0
May 22, 2025Bunn Paul A.DirectorGrant(A)13K$0
May 22, 2025Robertson MichelleDirectorGrant(A)8K$0
May 22, 2025Robertson MichelleDirectorGrant(A)13K$0
May 20, 2025Paterson DanPresident and CEO, DirectorSell(S)59K$8.13$477K
May 20, 2025Calkins DanielChief Financial OfficerSell(S)11K$8.13$91K
May 16, 2025Paterson DanPresident and CEO, DirectorGrant(A)150K$0
May 16, 2025Paterson DanPresident and CEO, DirectorGrant(A)25K$0
May 16, 2025Calkins DanielChief Financial OfficerGrant(A)39K$0
May 5, 2025Paterson DanPresident and CEO, DirectorSell(S)820$7.30$6K
Apr 1, 2025Ros MatthewChief Operating OfficerGrant(A)50K$0
Mar 24, 2025Calkins DanielChief Financial OfficerSell(S)26$7.04$183
Mar 20, 2025Calkins DanielChief Financial OfficerSell(S)65$6.89$448
Mar 17, 2025Stuglik Brian MDirectorSell(S)593$6.95$4K
Mar 17, 2025Gagnon Robert E.DirectorSell(S)284$6.95$2K
Mar 17, 2025Paterson DanPresident and CEO, DirectorSell(S)244$6.95$2K
Feb 4, 2025Paterson DanPresident and CEO, DirectorSell(S)858$5.70$5K
Jan 13, 2025Paterson DanPresident and CEO, DirectorSell(S)9K$5.24$45K
Jan 10, 2025Calkins DanielChief Financial OfficerGrant(A)39K$0
Jan 10, 2025Paterson DanPresident and CEO, DirectorGrant(A)100K$0
Jan 10, 2025Paterson DanPresident and CEO, DirectorGrant(A)25K$0
Jan 6, 2025Calkins DanielChief Financial OfficerSell(S)6$6.94$42
Dec 24, 2024Calkins DanielChief Financial OfficerSell(S)28$3.91$109
Dec 20, 2024Calkins DanielChief Financial OfficerSell(S)65$4.34$282
Dec 19, 2024Paterson DanPresident and CEO, DirectorSell(S)183$4.37$800
Dec 19, 2024Stuglik Brian MDirectorSell(S)334$4.37$1K
Dec 19, 2024Gagnon Robert E.DirectorSell(S)130$4.37$568
Dec 16, 2024Paterson DanPresident and CEO, DirectorSell(S)244$4.54$1K
Dec 16, 2024Stuglik Brian MDirectorSell(S)595$4.54$3K
Dec 16, 2024Gagnon Robert E.DirectorSell(S)285$4.54$1K
Nov 5, 2024Paterson DanPresident and CEO, DirectorSell(S)812$3.84$3K
Oct 7, 2024Calkins DanielChief Financial OfficerSell(S)6$2.86$17
Sep 24, 2024Calkins DanielChief Financial OfficerSell(S)28$2.68$75
Sep 20, 2024Calkins DanielChief Financial OfficerSell(S)65$2.80$182
Sep 19, 2024Stuglik Brian MDirectorSell(S)336$2.79$937
Sep 19, 2024Paterson DanPresident and CEO, DirectorSell(S)184$2.79$513
Sep 19, 2024Gagnon Robert E.DirectorSell(S)131$2.79$365
Sep 16, 2024Paterson DanPresident and CEO, DirectorSell(S)246$2.80$689
Sep 16, 2024Stuglik Brian MDirectorSell(S)600$2.80$2K
Sep 16, 2024Gagnon Robert E.DirectorSell(S)287$2.80$804
Aug 5, 2024Paterson DanPresident and CEO, DirectorSell(S)3K$2.16$7K
Jul 9, 2024Calkins DanielChief Financial OfficerSell(S)7$2.62$18

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).