← All stocks

Verastem, Inc.

VSTM Net selling
CIK 0001526119 #2939 in the set updated 17 Sep 2026
Bought (120 mo)
$815.53K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$7.43M
$1.65M on a plan · $62.50K straight out of an exercise
Sold at will
$5.72M
114 of 158 sales
Net
−$6.62M
−$4.90M against sales at will

By person

20 insiders · 177 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
RA CAPITAL MANAGEMENT, L.P. entity
10% owner
$5.22M (2)
−$5.22M
16,142,051
$93.79M
−13.2%
Paterson Dan
President and CEO
$35.06K (3)
$1.27M (57) scheduled
−$1.24M
644,386
$3.74M
BARBERICH TIMOTHY J
Director
$563.61K (5)
+$563.61K
218,000
$1.27M
+452.4%
Gagnon Robert E.
Director
$338.36K (30) scheduled
−$338.36K
41,678
$242.15K
Stuglik Brian M
Director
$7.30K (3)
$207.32K (31)
−$200.02K
137,147
$796.82K
Calkins Daniel
Chief Financial Officer
$172.99K (35) scheduled
−$172.99K
117,238
$681.15K
+31.7%
Bunn Paul A.
Director
$138.00K (2) scheduled
−$138.00K
44,333
$257.57K
Forrester Robert
President and CEO
$87.50K (3)
+$87.50K
226,234
$1.31M
+5.8%
Lobacki Joseph M
Executive VP & CCO
$66.48K (2)
+$66.48K
10,700
$62.17K
Kauffman Michael
President of Development
$29.96K (1)
$85.50K (1) scheduled
−$55.54K
8,666
$50.35K
Bloom Steven H.
Chief Strategy Officer
$17.94K (1)
+$17.94K
3,500
$20.34K
+600.0%
Rowinsky Eric K
Director
$7.68K (1)
+$7.68K
54,666
$317.61K
Ridgeback Capital Investments L.P. entity
10% owner
10,068,243
$58.50M
+121.1%
Neumann Frank
Chief Medical Officer
150,000
$871.50K
BAILEY MICHAEL P
Director
108,000
$627.48K
Kapur Anil
Director
52,666
$305.99K
JOHNSON JOHN
Director
52,666
$305.99K
ROBERTSON MICHELLE
Director
52,666
$305.99K
Tollefson Karin Anna
Director
52,666
$305.99K
Ros Matthew
Chief Operating Officer
50,000
$290.50K

No percentages here. This company's share count has moved by a factor of 2.0 over the window, from 44,506,526 to 90,563,441 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Insider
Date
Role
Action
Shares
Price
Amount
Paterson Dan
3 Aug 2026
President and CEO
Sold on a plan
1,302
$5.81
$7.56K
Calkins Daniel
22 Jun 2026
Chief Financial Officer
Sold on a plan
57
$4.13
$235.41
Calkins Daniel
22 Jun 2026
Chief Financial Officer
Sold on a plan
4,032
$4.18
$16.85K
Paterson Dan
22 Jun 2026
President and CEO
Sold on a plan
20,871
$4.18
$87.24K
Paterson Dan
4 May 2026
President and CEO
Sold on a plan
806
$5.82
$4.69K
Paterson Dan
4 Feb 2026
President and CEO
Sold on a plan
970
$6.69
$6.49K
Calkins Daniel
12 Jan 2026
Chief Financial Officer
Sold on a plan
5,039
$7.16
$36.08K
Paterson Dan
12 Jan 2026
President and CEO
Sold on a plan
10,321
$7.16
$73.90K
Calkins Daniel
24 Dec 2025
Chief Financial Officer
Sold on a plan
80
$7.86
$628.80
Gagnon Robert E.
16 Dec 2025
Director
Sold on a plan
283
$9.14
$2.59K
Paterson Dan
16 Dec 2025
President and CEO
Sold on a plan
393
$9.14
$3.59K
Stuglik Brian M
16 Dec 2025
Director
Sold on a plan
592
$9.14
$5.41K
Paterson Dan
11 Dec 2025
President and CEO
Sold on a plan
2,000
$10.00
$20.00K
Paterson Dan
10 Dec 2025
President and CEO
Sold on a plan
2,000
$10.07
$20.14K
Paterson Dan
9 Dec 2025
President and CEO
Sold on a plan
2,000
$10.25
$20.50K
Paterson Dan
8 Dec 2025
President and CEO
Sold on a plan
2,000
$10.50
$21.00K
Paterson Dan
5 Dec 2025
President and CEO
Sold on a plan
2,000
$10.61
$21.22K
Paterson Dan
4 Dec 2025
President and CEO
Sold on a plan
2,000
$10.00
$20.00K
Paterson Dan
3 Dec 2025
President and CEO
Sold on a plan
2,000
$10.00
$20.00K
Paterson Dan
2 Dec 2025
President and CEO
Sold on a plan
2,000
$10.32
$20.64K
Paterson Dan
1 Dec 2025
President and CEO
Sold on a plan
2,000
$10.39
$20.78K
Paterson Dan
28 Nov 2025
President and CEO
Sold on a plan
2,000
$10.79
$21.58K
Paterson Dan
26 Nov 2025
President and CEO
Sold on a plan
2,000
$10.32
$20.64K
Paterson Dan
25 Nov 2025
President and CEO
Sold on a plan
2,000
$10.00
$20.00K
Paterson Dan
24 Nov 2025
President and CEO
Sold on a plan
2,000
$10.00
$20.00K
Paterson Dan
21 Nov 2025
President and CEO
Sold on a plan
2,000
$10.00
$20.00K
Kauffman Michael
21 Nov 2025
Director
Sold on a plan
8,550
$10.00
$85.50K
Paterson Dan
3 Nov 2025
President and CEO
Sold on a plan
2,000
$10.00
$20.00K
Paterson Dan
3 Nov 2025
President and CEO
Sold on a plan
1,299
$9.35
$12.15K
Bunn Paul A.
9 Oct 2025
Director
Sold on a plan
8,333
$9.06
$75.50K
Calkins Daniel
24 Sep 2025
Chief Financial Officer
Sold on a plan
25
$9.23
$230.75
Calkins Daniel
22 Sep 2025
Chief Financial Officer
Sold on a plan
57
$9.08
$517.56
Paterson Dan
16 Sep 2025
President and CEO
Sold on a plan
390
$9.99
$3.90K
Gagnon Robert E.
16 Sep 2025
Director
Sold on a plan
281
$9.99
$2.81K
Stuglik Brian M
16 Sep 2025
Director
Sold on a plan
587
$9.99
$5.86K
Paterson Dan
6 Aug 2025
President and CEO
Sold on a plan
1,332
$5.81
$7.74K
Calkins Daniel
23 Jun 2025
Chief Financial Officer
Sold on a plan
25
$4.71
$117.75
Calkins Daniel
20 Jun 2025
Chief Financial Officer
Sold on a plan
4,110
$5.13
$21.08K
Paterson Dan
20 Jun 2025
President and CEO
Sold on a plan
17,808
$5.13
$91.36K
Paterson Dan
20 May 2025
President and CEO
Sold on a plan
58,677
$8.13
$477.04K
Calkins Daniel
20 May 2025
Chief Financial Officer
Sold on a plan
11,143
$8.13
$90.59K
Gagnon Robert E.
6 Feb 2024
Director
Sold on a plan
9,204
$13.70
$126.09K
Gagnon Robert E.
12 Jan 2024
Director
Sold on a plan
9,204
$10.95
$100.78K

What was left out

Form 4 filings counted 272
Amendments (4/A) skipped 6
Filings about a different issuer 0
Unreadable filings 0
Joint filings 3
Sales on a Rule 10b5-1 plan 43
Sales straight out of an exercise 1
Sales at will 114
Transactions with no price 0
Shares from compensation/vesting 10,280,164
Sales filed before the plan box existed 31
History held since 1 Nov 2016