VSTM

Verastem, Inc.

Insider trading activity for Verastem, Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

-$8K

net selling

Bought(0 · 0 insiders): $0
Sold(2 · 2 insiders): $8K

Past 6 months

-$117K

net selling

Bought(0 · 0 insiders): $0
Sold(6 · 2 insiders): $117K

Past 12 months

-$787.8K

net selling

Bought(0 · 0 insiders): $0
Sold(32 · 6 insiders): $787.8K

Transaction history

The 82 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Sep 21	Calkins Daniel	Chief Financial Officer	SSELL◷	55	$7.70	$424	<0.1%	Open the original filing on SEC.gov
Aug 3	Paterson Dan	President and CEO	SSELL◷	1,302	$5.81	$7.6K	-0.2%	Open the original filing on SEC.gov
Jun 22	Paterson Dan	President and CEO	SSELL◷	20,871	$4.18	$87.2K	-3.4%	Open the original filing on SEC.gov
Jun 22	Calkins Daniel	Chief Financial Officer	SSELL◷	57	$4.13	$235	<0.1%	Open the original filing on SEC.gov
Jun 22	Calkins Daniel	Chief Financial Officer	SSELL◷	4,032	$4.18	$16.9K	-3.3%	Open the original filing on SEC.gov
May 21	Tollefson Karin Anna	Director	AGRANT	36,000	—	—	+216.0%	Open the original filing on SEC.gov
May 21	Stuglik Brian M	Director	AGRANT	36,000	—	—	+35.6%	Open the original filing on SEC.gov
May 21	Rowinsky Eric K	Director	AGRANT	36,000	—	—	+216.0%	Open the original filing on SEC.gov
May 21	Robertson Michelle	Director	AGRANT	36,000	—	—	+216.0%	Open the original filing on SEC.gov
May 21	Kapur Anil	Director	AGRANT	36,000	—	—	+216.0%	Open the original filing on SEC.gov
May 21	Johnson John	Director	AGRANT	36,000	—	—	+216.0%	Open the original filing on SEC.gov
May 21	Bunn Paul A.	Director	AGRANT	36,000	—	—	+432.0%	Open the original filing on SEC.gov
May 21	Bailey Michael P	Director	AGRANT	108,000	—	—	—	Open the original filing on SEC.gov
May 4	Paterson Dan	President and CEO	SSELL◷	806	$5.82	$4.7K	-0.1%	Open the original filing on SEC.gov
Mar 20	Calkins Daniel	Chief Financial Officer	AGRANT◷	57	$5.74	$327	<0.1%	Open the original filing on SEC.gov
Feb 4	Paterson Dan	President and CEO	SSELL◷	970	$6.69	$6.5K	-0.2%	Open the original filing on SEC.gov
Jan 21	Paterson Dan	President and CEO	AGRANT	213,785	—	—	+53.4%	Open the original filing on SEC.gov
Jan 21	Calkins Daniel	Chief Financial Officer	AGRANT	16,665	—	—	+15.9%	Open the original filing on SEC.gov
Jan 12	Paterson Dan	President and CEO	SSELL◷	10,321	$7.16	$73.9K	-2.5%	Open the original filing on SEC.gov
Jan 12	Calkins Daniel	Chief Financial Officer	SSELL◷	5,039	$7.16	$36.1K	-4.6%	Open the original filing on SEC.gov
Jan 6	Kauffman Michael	President of Development	AGRANT◆	200,000	—	—	—	Open the original filing on SEC.gov
Dec 24, 2025	Calkins Daniel	Chief Financial Officer	SSELL◷	80	$7.86	$629	<0.1%	Open the original filing on SEC.gov
Dec 16, 2025	Stuglik Brian M	Director	SSELL◷	592	$9.14	$5.4K	-0.6%	Open the original filing on SEC.gov
Dec 16, 2025	Paterson Dan	President and CEO	SSELL◷	393	$9.14	$3.6K	-0.1%	Open the original filing on SEC.gov
Dec 16, 2025	Gagnon Robert E.	Director	SSELL◷	283	$9.14	$2.6K	-0.7%	Open the original filing on SEC.gov
Dec 11, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.00	$20K	-0.5%	Open the original filing on SEC.gov
Dec 10, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.07	$20.1K	-0.5%	Open the original filing on SEC.gov
Dec 9, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.25	$20.5K	-0.5%	Open the original filing on SEC.gov
Dec 8, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.50	$21K	-0.5%	Open the original filing on SEC.gov
Dec 5, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.61	$21.2K	-0.5%	Open the original filing on SEC.gov
Dec 4, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.00	$20K	-0.5%	Open the original filing on SEC.gov
Dec 3, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.00	$20K	-0.5%	Open the original filing on SEC.gov
Dec 2, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.32	$20.6K	-0.5%	Open the original filing on SEC.gov
Dec 1, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.39	$20.8K	-0.5%	Open the original filing on SEC.gov
Nov 28, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.79	$21.6K	-0.5%	Open the original filing on SEC.gov
Nov 26, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.32	$20.6K	-0.5%	Open the original filing on SEC.gov
Nov 25, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.00	$20K	-0.5%	Open the original filing on SEC.gov
Nov 24, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.00	$20K	-0.5%	Open the original filing on SEC.gov
Nov 21, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.00	$20K	-0.5%	Open the original filing on SEC.gov
Nov 21, 2025	Kauffman Michael	Director	SSELL◷	8,550	$10.00	$85.5K	-49.7%	Open the original filing on SEC.gov
Nov 21, 2025	Bunn Paul A.	Director	MEXER◷◆	6,250	—	—	—	Open the original filing on SEC.gov
Nov 21, 2025	Bunn Paul A.	Director	MEXER◷	6,250	$3.27	$20.4K	+300.1%	Open the original filing on SEC.gov
Nov 21, 2025	Bunn Paul A.	Director	SSELL◷	6,250	$10.00	$62.5K	-75.0%	Open the original filing on SEC.gov
Nov 3, 2025	Paterson Dan	President and CEO	SSELL◷	2,000	$10.00	$20K	-0.4%	Open the original filing on SEC.gov
Nov 3, 2025	Paterson Dan	President and CEO	SSELL◷	1,299	$9.35	$12.1K	-0.3%	Open the original filing on SEC.gov
Oct 9, 2025	Bunn Paul A.	Director	SSELL◷	8,333	$9.06	$75.5K	-50.0%	Open the original filing on SEC.gov
Sep 24, 2025	Calkins Daniel	Chief Financial Officer	SSELL◷	25	$9.23	$231	<0.1%	Open the original filing on SEC.gov
Sep 22, 2025	Calkins Daniel	Chief Financial Officer	SSELL◷	57	$9.08	$518	<0.1%	Open the original filing on SEC.gov
Sep 16, 2025	Stuglik Brian M	Director	SSELL◷	587	$9.99	$5.9K	-0.6%	Open the original filing on SEC.gov
Sep 16, 2025	Paterson Dan	President and CEO	SSELL◷	390	$9.99	$3.9K	<0.1%	Open the original filing on SEC.gov
Sep 16, 2025	Gagnon Robert E.	Director	SSELL◷	281	$9.99	$2.8K	-0.7%	Open the original filing on SEC.gov
Aug 6, 2025	Paterson Dan	President and CEO	SSELL◷	1,332	$5.81	$7.7K	-0.3%	Open the original filing on SEC.gov
Jun 23, 2025	Calkins Daniel	Chief Financial Officer	SSELL◷	25	$4.71	$118	<0.1%	Open the original filing on SEC.gov
Jun 20, 2025	Paterson Dan	President and CEO	SSELL◷	17,808	$5.13	$91.4K	-3.9%	Open the original filing on SEC.gov
Jun 20, 2025	Calkins Daniel	Chief Financial Officer	SSELL◷	4,110	$5.13	$21.1K	-3.6%	Open the original filing on SEC.gov
Jun 16, 2025	Stuglik Brian M	Director	SSELL	594	$5.65	$3.4K	-0.6%	Open the original filing on SEC.gov
Jun 16, 2025	Paterson Dan	President and CEO	SSELL	335	$5.65	$1.9K	<0.1%	Open the original filing on SEC.gov
Jun 16, 2025	Gagnon Robert E.	Director	SSELL	284	$5.65	$1.6K	-0.7%	Open the original filing on SEC.gov
May 22, 2025	Tollefson Karin Anna	Director	AGRANT◆	12,500	—	—	—	Open the original filing on SEC.gov
May 22, 2025	Tollefson Karin Anna	Director	AGRANT	8,333	—	—	+100.0%	Open the original filing on SEC.gov
May 22, 2025	Stuglik Brian M	Director	AGRANT◆	12,500	—	—	—	Open the original filing on SEC.gov
May 22, 2025	Stuglik Brian M	Director	AGRANT	8,333	—	—	+8.8%	Open the original filing on SEC.gov
May 22, 2025	Rowinsky Eric K	Director	AGRANT◆	12,500	—	—	—	Open the original filing on SEC.gov
May 22, 2025	Rowinsky Eric K	Director	AGRANT	8,333	—	—	+100.0%	Open the original filing on SEC.gov
May 22, 2025	Robertson Michelle	Director	AGRANT◆	12,500	—	—	—	Open the original filing on SEC.gov
May 22, 2025	Robertson Michelle	Director	AGRANT	8,333	—	—	+100.0%	Open the original filing on SEC.gov
May 22, 2025	Kauffman Michael	Director	AGRANT◆	12,500	—	—	—	Open the original filing on SEC.gov
May 22, 2025	Kauffman Michael	Director	AGRANT	8,333	—	—	+93.8%	Open the original filing on SEC.gov
May 22, 2025	Kapur Anil	Director	AGRANT◆	12,500	—	—	—	Open the original filing on SEC.gov
May 22, 2025	Kapur Anil	Director	AGRANT	8,333	—	—	+100.0%	Open the original filing on SEC.gov
May 22, 2025	Johnson John	Director	AGRANT◆	12,500	—	—	—	Open the original filing on SEC.gov
May 22, 2025	Johnson John	Director	AGRANT	8,333	—	—	+100.0%	Open the original filing on SEC.gov
May 22, 2025	Gagnon Robert E.	Director	AGRANT◆	12,500	—	—	—	Open the original filing on SEC.gov
May 22, 2025	Gagnon Robert E.	Director	AGRANT	8,333	—	—	+24.4%	Open the original filing on SEC.gov
May 22, 2025	Bunn Paul A.	Director	AGRANT◆	12,500	—	—	—	Open the original filing on SEC.gov
May 22, 2025	Bunn Paul A.	Director	AGRANT	8,333	—	—	+100.0%	Open the original filing on SEC.gov
May 20, 2025	Paterson Dan	President and CEO	SSELL◷	58,677	$8.13	$477K	-11.3%	Open the original filing on SEC.gov
May 20, 2025	Calkins Daniel	Chief Financial Officer	SSELL◷	11,143	$8.13	$90.6K	-8.9%	Open the original filing on SEC.gov
May 16, 2025	Paterson Dan	President and CEO	AGRANT◷	150,000	—	—	-22.4%	Open the original filing on SEC.gov
May 16, 2025	Paterson Dan	President and CEO	AGRANT◷	25,000	—	—	-6.3%	Open the original filing on SEC.gov
May 16, 2025	Calkins Daniel	Chief Financial Officer	AGRANT◷	38,850	—	—	-23.7%	Open the original filing on SEC.gov
May 5, 2025	Paterson Dan	President and CEO	SSELL	820	$7.30	$6K	-0.2%	Open the original filing on SEC.gov

SSELL◷$424

Calkins Daniel · Chief Financial…Sep 21

55 sh @ $7.70 · <0.1% own

SSELL◷$7.6K

Paterson Dan · President and CEOAug 3

1,302 sh @ $5.81 · -0.2% own

SSELL◷$87.2K

Paterson Dan · President and CEOJun 22

20,871 sh @ $4.18 · -3.4% own

SSELL◷$235

Calkins Daniel · Chief Financial…Jun 22

57 sh @ $4.13 · <0.1% own

SSELL◷$16.9K

Calkins Daniel · Chief Financial…Jun 22

4,032 sh @ $4.18 · -3.3% own

AGRANT—

Tollefson Karin Anna · DirectorMay 21

36,000 sh · +216.0% own

AGRANT—

Stuglik Brian M · DirectorMay 21

36,000 sh · +35.6% own

AGRANT—

Rowinsky Eric K · DirectorMay 21

36,000 sh · +216.0% own

AGRANT—

Robertson Michelle · DirectorMay 21

36,000 sh · +216.0% own

AGRANT—

Kapur Anil · DirectorMay 21

36,000 sh · +216.0% own

AGRANT—

Johnson John · DirectorMay 21

36,000 sh · +216.0% own

AGRANT—

Bunn Paul A. · DirectorMay 21

36,000 sh · +432.0% own

AGRANT—

Bailey Michael P · DirectorMay 21

108,000 sh

SSELL◷$4.7K

Paterson Dan · President and CEOMay 4

806 sh @ $5.82 · -0.1% own

AGRANT◷$327

Calkins Daniel · Chief Financial…Mar 20

57 sh @ $5.74 · <0.1% own

SSELL◷$6.5K

Paterson Dan · President and CEOFeb 4

970 sh @ $6.69 · -0.2% own

AGRANT—

Paterson Dan · President and CEOJan 21

213,785 sh · +53.4% own

AGRANT—

Calkins Daniel · Chief Financial…Jan 21

16,665 sh · +15.9% own

SSELL◷$73.9K

Paterson Dan · President and CEOJan 12

10,321 sh @ $7.16 · -2.5% own

SSELL◷$36.1K

Calkins Daniel · Chief Financial…Jan 12

5,039 sh @ $7.16 · -4.6% own

AGRANT◆—

Kauffman Michael · President of…Jan 6

200,000 sh

SSELL◷$629

Calkins Daniel · Chief Financial…Dec 24, 2025

80 sh @ $7.86 · <0.1% own

SSELL◷$5.4K

Stuglik Brian M · DirectorDec 16, 2025

592 sh @ $9.14 · -0.6% own

SSELL◷$3.6K

Paterson Dan · President and CEODec 16, 2025

393 sh @ $9.14 · -0.1% own

SSELL◷$2.6K

Gagnon Robert E. · DirectorDec 16, 2025

283 sh @ $9.14 · -0.7% own

SSELL◷$20K

Paterson Dan · President and CEODec 11, 2025

2,000 sh @ $10.00 · -0.5% own

SSELL◷$20.1K

Paterson Dan · President and CEODec 10, 2025

2,000 sh @ $10.07 · -0.5% own

SSELL◷$20.5K

Paterson Dan · President and CEODec 9, 2025

2,000 sh @ $10.25 · -0.5% own

SSELL◷$21K

Paterson Dan · President and CEODec 8, 2025

2,000 sh @ $10.50 · -0.5% own

SSELL◷$21.2K

Paterson Dan · President and CEODec 5, 2025

2,000 sh @ $10.61 · -0.5% own

SSELL◷$20K

Paterson Dan · President and CEODec 4, 2025

2,000 sh @ $10.00 · -0.5% own

SSELL◷$20K

Paterson Dan · President and CEODec 3, 2025

2,000 sh @ $10.00 · -0.5% own

SSELL◷$20.6K

Paterson Dan · President and CEODec 2, 2025

2,000 sh @ $10.32 · -0.5% own

SSELL◷$20.8K

Paterson Dan · President and CEODec 1, 2025

2,000 sh @ $10.39 · -0.5% own

SSELL◷$21.6K

Paterson Dan · President and CEONov 28, 2025

2,000 sh @ $10.79 · -0.5% own

SSELL◷$20.6K

Paterson Dan · President and CEONov 26, 2025

2,000 sh @ $10.32 · -0.5% own

SSELL◷$20K

Paterson Dan · President and CEONov 25, 2025

2,000 sh @ $10.00 · -0.5% own

SSELL◷$20K

Paterson Dan · President and CEONov 24, 2025

2,000 sh @ $10.00 · -0.5% own

SSELL◷$20K

Paterson Dan · President and CEONov 21, 2025

2,000 sh @ $10.00 · -0.5% own

SSELL◷$85.5K

Kauffman Michael · DirectorNov 21, 2025

8,550 sh @ $10.00 · -49.7% own

MEXER◷◆—

Bunn Paul A. · DirectorNov 21, 2025

6,250 sh

MEXER◷$20.4K

Bunn Paul A. · DirectorNov 21, 2025

6,250 sh @ $3.27 · +300.1% own

SSELL◷$62.5K

Bunn Paul A. · DirectorNov 21, 2025

6,250 sh @ $10.00 · -75.0% own

SSELL◷$20K

Paterson Dan · President and CEONov 3, 2025

2,000 sh @ $10.00 · -0.4% own

SSELL◷$12.1K

Paterson Dan · President and CEONov 3, 2025

1,299 sh @ $9.35 · -0.3% own

SSELL◷$75.5K

Bunn Paul A. · DirectorOct 9, 2025

8,333 sh @ $9.06 · -50.0% own

SSELL◷$231

Calkins Daniel · Chief Financial…Sep 24, 2025

25 sh @ $9.23 · <0.1% own

SSELL◷$518

Calkins Daniel · Chief Financial…Sep 22, 2025

57 sh @ $9.08 · <0.1% own

SSELL◷$5.9K

Stuglik Brian M · DirectorSep 16, 2025

587 sh @ $9.99 · -0.6% own

SSELL◷$3.9K

Paterson Dan · President and CEOSep 16, 2025

390 sh @ $9.99 · <0.1% own

SSELL◷$2.8K

Gagnon Robert E. · DirectorSep 16, 2025

281 sh @ $9.99 · -0.7% own

SSELL◷$7.7K

Paterson Dan · President and CEOAug 6, 2025

1,332 sh @ $5.81 · -0.3% own

SSELL◷$118

Calkins Daniel · Chief Financial…Jun 23, 2025

25 sh @ $4.71 · <0.1% own

SSELL◷$91.4K

Paterson Dan · President and CEOJun 20, 2025

17,808 sh @ $5.13 · -3.9% own

SSELL◷$21.1K

Calkins Daniel · Chief Financial…Jun 20, 2025

4,110 sh @ $5.13 · -3.6% own

SSELL$3.4K

Stuglik Brian M · DirectorJun 16, 2025

594 sh @ $5.65 · -0.6% own

SSELL$1.9K

Paterson Dan · President and CEOJun 16, 2025

335 sh @ $5.65 · <0.1% own

SSELL$1.6K

Gagnon Robert E. · DirectorJun 16, 2025

284 sh @ $5.65 · -0.7% own

AGRANT◆—

Tollefson Karin Anna · DirectorMay 22, 2025

12,500 sh

AGRANT—

Tollefson Karin Anna · DirectorMay 22, 2025

8,333 sh · +100.0% own

AGRANT◆—

Stuglik Brian M · DirectorMay 22, 2025

12,500 sh

AGRANT—

Stuglik Brian M · DirectorMay 22, 2025

8,333 sh · +8.8% own

AGRANT◆—

Rowinsky Eric K · DirectorMay 22, 2025

12,500 sh

AGRANT—

Rowinsky Eric K · DirectorMay 22, 2025

8,333 sh · +100.0% own

AGRANT◆—

Robertson Michelle · DirectorMay 22, 2025

12,500 sh

AGRANT—

Robertson Michelle · DirectorMay 22, 2025

8,333 sh · +100.0% own

AGRANT◆—

Kauffman Michael · DirectorMay 22, 2025

12,500 sh

AGRANT—

Kauffman Michael · DirectorMay 22, 2025

8,333 sh · +93.8% own

AGRANT◆—

Kapur Anil · DirectorMay 22, 2025

12,500 sh

AGRANT—

Kapur Anil · DirectorMay 22, 2025

8,333 sh · +100.0% own

AGRANT◆—

Johnson John · DirectorMay 22, 2025

12,500 sh

AGRANT—

Johnson John · DirectorMay 22, 2025

8,333 sh · +100.0% own

AGRANT◆—

Gagnon Robert E. · DirectorMay 22, 2025

12,500 sh

AGRANT—

Gagnon Robert E. · DirectorMay 22, 2025

8,333 sh · +24.4% own

AGRANT◆—

Bunn Paul A. · DirectorMay 22, 2025

12,500 sh

AGRANT—

Bunn Paul A. · DirectorMay 22, 2025

8,333 sh · +100.0% own

SSELL◷$477K

Paterson Dan · President and CEOMay 20, 2025

58,677 sh @ $8.13 · -11.3% own

SSELL◷$90.6K

Calkins Daniel · Chief Financial…May 20, 2025

11,143 sh @ $8.13 · -8.9% own

AGRANT◷—

Paterson Dan · President and CEOMay 16, 2025

150,000 sh · -22.4% own

AGRANT◷—

Paterson Dan · President and CEOMay 16, 2025

25,000 sh · -6.3% own

AGRANT◷—

Calkins Daniel · Chief Financial…May 16, 2025

38,850 sh · -23.7% own

SSELL$6K

Paterson Dan · President and CEOMay 5, 2025

820 sh @ $7.30 · -0.2% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 54 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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