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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
Stuglik Brian M
16 Jun 2025
Director
Sell
594
$5.65
$3.36K
Gagnon Robert E.
16 Jun 2025
Director
Sell
284
$5.65
$1.60K
Paterson Dan
16 Jun 2025
President and CEO
Sell
335
$5.65
$1.89K
Paterson Dan
5 May 2025
President and CEO
Sell
820
$7.30
$5.99K
Calkins Daniel
24 Mar 2025
Chief Financial Officer
Sell
26
$7.04
$183.04
Calkins Daniel
20 Mar 2025
Chief Financial Officer
Sell
65
$6.89
$447.85
Stuglik Brian M
17 Mar 2025
Director
Sell
593
$6.95
$4.12K
Gagnon Robert E.
17 Mar 2025
Director
Sell
284
$6.95
$1.97K
Paterson Dan
17 Mar 2025
President and CEO
Sell
244
$6.95
$1.70K
Paterson Dan
4 Feb 2025
President and CEO
Sell
858
$5.70
$4.89K
Paterson Dan
13 Jan 2025
President and CEO
Sell
8,568
$5.24
$44.90K
Calkins Daniel
6 Jan 2025
Chief Financial Officer
Sell
6
$6.94
$41.64
Calkins Daniel
24 Dec 2024
Chief Financial Officer
Sell
28
$3.91
$109.48
Calkins Daniel
20 Dec 2024
Chief Financial Officer
Sell
65
$4.34
$282.10
Paterson Dan
19 Dec 2024
President and CEO
Sell
183
$4.37
$799.71
Stuglik Brian M
19 Dec 2024
Director
Sell
334
$4.37
$1.46K
Gagnon Robert E.
19 Dec 2024
Director
Sell
130
$4.37
$568.10
Paterson Dan
16 Dec 2024
President and CEO
Sell
244
$4.54
$1.11K
Stuglik Brian M
16 Dec 2024
Director
Sell
595
$4.54
$2.70K
Gagnon Robert E.
16 Dec 2024
Director
Sell
285
$4.54
$1.29K
Paterson Dan
5 Nov 2024
President and CEO
Sell
812
$3.84
$3.12K
Calkins Daniel
7 Oct 2024
Chief Financial Officer
Sell
6
$2.86
$17.16
Calkins Daniel
24 Sep 2024
Chief Financial Officer
Sell
28
$2.68
$75.04
Calkins Daniel
20 Sep 2024
Chief Financial Officer
Sell
65
$2.80
$182.00
Stuglik Brian M
19 Sep 2024
Director
Sell
336
$2.79
$937.44
Paterson Dan
19 Sep 2024
President and CEO
Sell
184
$2.79
$513.36
Gagnon Robert E.
19 Sep 2024
Director
Sell
131
$2.79
$365.49
Paterson Dan
16 Sep 2024
President and CEO
Sell
246
$2.80
$688.80
Stuglik Brian M
16 Sep 2024
Director
Sell
600
$2.80
$1.68K
Gagnon Robert E.
16 Sep 2024
Director
Sell
287
$2.80
$803.60
Paterson Dan
5 Aug 2024
President and CEO
Sell
3,245
$2.16
$7.01K
Calkins Daniel
9 Jul 2024
Chief Financial Officer
Sell
7
$2.62
$18.34
Calkins Daniel
24 Jun 2024
Chief Financial Officer
Sell
28
$3.15
$88.20
Stuglik Brian M
20 Jun 2024
Director
Sell
335
$3.21
$1.08K
Paterson Dan
20 Jun 2024
President and CEO
Sell
183
$3.21
$587.43
Gagnon Robert E.
20 Jun 2024
Director
Sell
131
$3.21
$420.51
Calkins Daniel
20 Jun 2024
Chief Financial Officer
Sell
67
$3.16
$211.72
Stuglik Brian M
17 Jun 2024
Director
Sell
593
$3.49
$2.07K
Paterson Dan
17 Jun 2024
President and CEO
Sell
244
$3.49
$851.56
Gagnon Robert E.
17 Jun 2024
Director
Sell
283
$3.49
$987.67
Calkins Daniel
5 Apr 2024
Chief Financial Officer
Sell
6
$10.87
$65.22
Calkins Daniel
25 Mar 2024
Chief Financial Officer
Sell
25
$12.02
$300.50
Calkins Daniel
20 Mar 2024
Chief Financial Officer
Sell
55
$11.07
$608.85
Stuglik Brian M
19 Mar 2024
Director
Sell
273
$10.38
$2.83K
Paterson Dan
19 Mar 2024
President and CEO
Sell
182
$10.38
$1.89K
Gagnon Robert E.
19 Mar 2024
Director
Sell
130
$10.38
$1.35K
Stuglik Brian M
18 Mar 2024
Director
Sell
537
$10.71
$5.75K
Paterson Dan
18 Mar 2024
President and CEO
Sell
244
$10.71
$2.61K
Gagnon Robert E.
18 Mar 2024
Director
Sell
283
$10.71
$3.03K
Calkins Daniel
5 Jan 2024
Chief Financial Officer
Sell
6
$8.50
$51.00
Calkins Daniel
26 Dec 2023
Chief Financial Officer
Sell
25
$8.08
$202.00
Calkins Daniel
20 Dec 2023
Chief Financial Officer
Sell
57
$7.93
$452.01
Stuglik Brian M
19 Dec 2023
Director
Sell
274
$7.73
$2.12K
Paterson Dan
19 Dec 2023
President and CEO
Sell
183
$7.73
$1.41K
Gagnon Robert E.
19 Dec 2023
Director
Sell
130
$7.73
$1.00K
Stuglik Brian M
18 Dec 2023
Director
Sell
487
$7.64
$3.72K
Paterson Dan
18 Dec 2023
President and CEO
Sell
244
$7.64
$1.86K
Gagnon Robert E.
18 Dec 2023
Director
Sell
284
$7.64
$2.17K
Calkins Daniel
5 Oct 2023
Vice President of Finance
Sell
5
$7.30
$36.50
Calkins Daniel
25 Sep 2023
Vice President of Finance
Sell
25
$9.40
$235.00
Calkins Daniel
21 Sep 2023
Vice President of Finance
Sell
232
$9.31
$2.16K
Stuglik Brian M
19 Sep 2023
Director
Sell
274
$9.84
$2.70K
Gagnon Robert E.
19 Sep 2023
Director
Sell
130
$9.84
$1.28K
Paterson Dan
19 Sep 2023
President and CEO
Sell
183
$9.84
$1.80K
Stuglik Brian M
18 Sep 2023
Director
Sell
478
$9.91
$4.74K
Gagnon Robert E.
18 Sep 2023
Director
Sell
278
$9.91
$2.75K
Paterson Dan
18 Sep 2023
President and CEO
Sell
240
$9.91
$2.38K
Calkins Daniel
6 Jul 2023
Vice President of Finance
Sell
5
$8.02
$40.10
Calkins Daniel
26 Jun 2023
Vice President of Finance
Sell
26
$8.17
$212.42
Stuglik Brian M
20 Jun 2023
Chief Executive Officer
Sell
275
$10.30
$2.83K
Gagnon Robert E.
20 Jun 2023
Director
Sell
130
$10.30
$1.34K
Paterson Dan
20 Jun 2023
President and COO
Sell
183
$10.30
$1.88K
Stuglik Brian M
16 Jun 2023
Chief Executive Officer
Sell
487
$9.92
$4.83K
Gagnon Robert E.
16 Jun 2023
Director
Sell
283
$9.92
$2.81K
Paterson Dan
16 Jun 2023
President and COO
Sell
244
$9.92
$2.42K
Calkins Daniel
5 Apr 2023
Vice President of Finance
Sell
75
$0.37
$27.75
Calkins Daniel
24 Mar 2023
Vice President of Finance
Sell
378
$0.42
$158.76
Stuglik Brian M
20 Mar 2023
Chief Executive Officer
Sell
3,508
$0.43
$1.51K
Paterson Dan
20 Mar 2023
President and COO
Sell
2,339
$0.43
$1.01K
Gagnon Robert E.
20 Mar 2023
Director
Sell
1,664
$0.43
$715.52
Stuglik Brian M
16 Mar 2023
Chief Executive Officer
Sell
6,276
$0.40
$2.51K
Paterson Dan
16 Mar 2023
President and COO
Sell
3,138
$0.40
$1.26K
Gagnon Robert E.
16 Mar 2023
Director
Sell
3,654
$0.40
$1.46K
Calkins Daniel
5 Jan 2023
Vice President of Finance
Sell
74
$0.43
$31.82
Calkins Daniel
27 Dec 2022
Vice President of Finance
Sell
1,246
$0.33
$411.18
Stuglik Brian M
19 Dec 2022
Chief Executive Officer
Sell
3,556
$0.37
$1.32K
Gagnon Robert E.
19 Dec 2022
Director
Sell
1,429
$0.37
$528.73
Paterson Dan
19 Dec 2022
President and COO
Sell
2,954
$0.37
$1.09K
Stuglik Brian M
16 Dec 2022
Chief Executive Officer
Sell
25,162
$0.40
$10.06K
Gagnon Robert E.
16 Dec 2022
Director
Sell
12,408
$0.40
$4.96K
Paterson Dan
16 Dec 2022
President and COO
Sell
15,676
$0.40
$6.27K
Gagnon Robert E.
19 Sep 2022
Chief Financial Officer
Sell
1,348
$1.13
$1.52K
Paterson Dan
19 Sep 2022
President and COO
Sell
2,786
$1.13
$3.15K
Stuglik Brian M
19 Sep 2022
Chief Executive Officer
Sell
3,355
$1.13
$3.79K
Stuglik Brian M
1 Aug 2022
Chief Executive Officer
Sell
5,858
$1.08
$6.33K
Gagnon Robert E.
21 Jun 2022
Chief Financial Officer
Sell
1,351
$1.14
$1.54K
Stuglik Brian M
21 Jun 2022
Chief Executive Officer
Sell
3,362
$1.14
$3.83K
Paterson Dan
21 Jun 2022
President and COO
Sell
2,701
$1.14
$3.08K
Gagnon Robert E.
16 May 2022
Chief Financial Officer
Sell
16,627
$1.03
$17.13K
Stuglik Brian M
16 May 2022
Chief Executive Officer
Sell
13,794
$1.03
$14.21K
Paterson Dan
16 May 2022
President and COO
Sell
4,988
$1.03
$5.14K
Stuglik Brian M
2 May 2022
Chief Executive Officer
Sell
5,857
$1.41
$8.26K
Gagnon Robert E.
21 Mar 2022
Chief Financial Officer
Sell
1,409
$1.27
$1.79K
Stuglik Brian M
21 Mar 2022
Chief Executive Officer
Sell
3,507
$1.27
$4.45K
Paterson Dan
21 Mar 2022
President and COO
Sell
2,818
$1.27
$3.58K
Stuglik Brian M
31 Jan 2022
Chief Executive Officer
Sell
5,695
$1.48
$8.43K
Paterson Dan
3 Jan 2022
President and COO
Sell
23,534
$2.05
$48.24K
Gagnon Robert E.
3 Jan 2022
Chief Financial Officer
Sell
19,612
$2.05
$40.20K
Stuglik Brian M
3 Jan 2022
Chief Executive Officer
Sell
26,033
$2.05
$53.37K
Gagnon Robert E.
20 Dec 2021
Chief Financial Officer
Sell
5,497
$2.27
$12.48K
Paterson Dan
20 Dec 2021
President and COO
Sell
10,994
$2.27
$24.96K
Stuglik Brian M
20 Dec 2021
Chief Executive Officer
Sell
13,682
$2.27
$31.06K
RA CAPITAL MANAGEMENT, L.P.
25 Jun 2020
10% owner
Sell indirect
1,161,300
$1.91
$2.22M
RA CAPITAL MANAGEMENT, L.P.
27 Apr 2020
10% owner
Sell indirect
1,301,300
$2.31
$3.00M

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