VSTM
VERASTEM (VSTM)
NASDAQ
$6.88-$0.010 (-0.15%)
Price as of Aug 21, 2026 7:30 PM EDT
  • $624.0M
    Market Cap
  • -24.12%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
10.46%
9.2M
+3.0M (+32.61%)
Jun 30, 2026
ARMISTICE CAPITAL, LLC
7.99%
7.0M
+2.4M (+34.62%)
Jun 30, 2026
RTW INVESTMENTS, LP
7.55%
6.6M
+59,487 (+0.90%)
Jun 30, 2026
DEEP TRACK CAPITAL, LP
6.53%
5.7M
0 (0.00%)
Jun 30, 2026
STATE STREET CORP
5.84%
5.1M
+1.6M (+31.50%)
Jun 30, 2026
VANGUARD GROUP INC
4.73%
4.2M
+673,695 (+16.22%)
Dec 31, 2025
ROSALIND ADVISORS, INC.
4.54%
4.0M
+1.8M (+46.36%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions1.2B (74.66%)
  • Mutual Funds351.0M (22.37%)
  • Insiders46.7M (2.97%)
  • Other0 (0.00%)

Insider Transactions

  • 2.97% (46.7M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 6
    Number of InsiderSelling (last 12 months)
  • $44.8M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Paterson Dan
President and CEO
Sell
Aug 03, 2026
$7,564.62
1,302
$5.81
589,940
Calkins Daniel
Chief Financial Officer
Sell
Jun 22, 2026
$16,853.76
4,032
$4.18
117,295
Paterson Dan
President and CEO
Sell
Jun 22, 2026
$87,240.78
20,871
$4.18
591,242
Calkins Daniel
Chief Financial Officer
Sell
Jun 22, 2026
$235.41
57
$4.13
117,238
Calkins Daniel
Chief Financial Officer
Award
Mar 20, 2026
$327.18
57
$5.74
121,327
Paterson Dan
President and CEO
Sell
Feb 04, 2026
$6,489.30
970
$6.69
612,919
Calkins Daniel
Chief Financial Officer
Award
Jan 21, 2026
$0.00
16,665
$0.00
121,384
Paterson Dan
President and CEO
Award
Jan 21, 2026
$0.00
213,785
$0.00
613,889
Paterson Dan
President and CEO
Sell
Jan 12, 2026
$73,898.36
10,321
$7.16
400,104
Calkins Daniel
Chief Financial Officer
Sell
Jan 12, 2026
$36,079.24
5,039
$7.16
104,719
Calkins Daniel
Chief Financial Officer
Sell
Dec 24, 2025
$628.80
80
$7.86
109,758
Paterson Dan
President and CEO
Sell
Dec 16, 2025
$3,592.02
393
$9.14
410,425
Gagnon Robert E.
Sell
Dec 16, 2025
$2,586.62
283
$9.14
41,678
Stuglik Brian M
Sell
Dec 16, 2025
$5,410.88
592
$9.14
101,147
Paterson Dan
President and CEO
Sell
Nov 25, 2025
$20,000.00
2,000
$10.00
432,818
Paterson Dan
President and CEO
Sell
Nov 24, 2025
$20,000.00
2,000
$10.00
434,818
Kauffman Michael
Sell
Nov 21, 2025
$85,500.00
8,550
$10.00
8,666
Paterson Dan
President and CEO
Sell
Nov 21, 2025
$20,000.00
2,000
$10.00
436,818
Paterson Dan
President and CEO
Sell
Nov 03, 2025
$12,145.65
1,299
$9.35
440,818
Paterson Dan
President and CEO
Sell
Nov 03, 2025
$20,000.00
2,000
$10.00
438,818
Bunn Paul A.
Sell
Oct 09, 2025
$75,496.98
8,333
$9.06
8,333
Calkins Daniel
Chief Financial Officer
Sell
Sep 24, 2025
$230.75
25
$9.23
109,838
Calkins Daniel
Chief Financial Officer
Sell
Sep 22, 2025
$517.56
57
$9.08
109,863
Stuglik Brian M
Sell
Sep 16, 2025
$5,864.13
587
$9.99
101,739
Calkins Daniel
Chief Financial Officer
Sell
Jun 23, 2025
$117.75
25
$4.71
109,920
Paterson Dan
President and CEO
Sell
Jun 20, 2025
$91,355.04
17,808
$5.13
443,839
Calkins Daniel
Chief Financial Officer
Sell
Jun 20, 2025
$21,084.30
4,110
$5.13
109,945
Paterson Dan
President and CEO
Sell
Jun 16, 2025
$1,892.75
335
$5.65
461,647
Stuglik Brian M
Sell
Jun 16, 2025
$3,356.10
594
$5.65
102,326
Gagnon Robert E.
Sell
Jun 16, 2025
$1,604.60
284
$5.65
42,242