VSTM
insider transactionsVerastem, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-17.1K
0 buy · 17.1K sell
Net value · 365d
-$121.2K
$0 in · $121.2K out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
4
0 buy · 17.1K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Grant·A
Director
$0
36.0K sh
Own +216%
-
Grant·A
Director
$0
36.0K sh
Own +36%
-
Grant·A
Director
$0
36.0K sh
Own +216%
-
Grant·A
Director
$0
36.0K sh
Own +216%
-
Grant·A
Director
$0
36.0K sh
Own +432%
-
Grant·A
Director
$0
108.0K sh
Own New
-
Sell·S
Dan Paterson KEY
President and CEO · 10b5-1
$4.7K
806 sh · $5.82
Own -0%
-
Grant·A
Daniel Calkins KEY
Chief Financial Officer · 10b5-1
$327
57 sh · $5.74
Own +0%
-
Sell·S
Dan Paterson KEY
President and CEO · 10b5-1
$6.5K
970 sh · $6.69
Own -0%
-
Grant·A
Dan Paterson KEY
President and CEO
$0
213.8K sh
Own +53%
-
Grant·A
Daniel Calkins KEY
Chief Financial Officer
$0
16.7K sh
Own +16%
-
Sell·S
Dan Paterson KEY
President and CEO · 10b5-1
$73.9K
10.3K sh · $7.16
Own -3%
-
Sell·S
Daniel Calkins KEY
Chief Financial Officer · 10b5-1
$36.1K
5.0K sh · $7.16
Own -5%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| May 21, 2026 | Karin Anna Tollefson | Grant A | 36.0K | $0 |
| May 21, 2026 | Brian M Stuglik | Grant A | 36.0K | $0 |
| May 21, 2026 | Eric K Rowinsky | Grant A | 36.0K | $0 |
| May 21, 2026 | Michelle Robertson | Grant A | 36.0K | $0 |
| May 21, 2026 | Paul A. Bunn | Grant A | 36.0K | $0 |
| May 21, 2026 | BAILEY MICHAEL P | Grant A | 108.0K | $0 |
| May 4, 2026 | Dan Paterson KEY 10b5-1 | Sell S | 806 | $4.7K |
| Mar 20, 2026 | Daniel Calkins KEY 10b5-1 | Grant A | 57 | $327 |
| Feb 4, 2026 | Dan Paterson KEY 10b5-1 | Sell S | 970 | $6.5K |
| Jan 21, 2026 | Dan Paterson KEY | Grant A | 213.8K | $0 |
| Jan 21, 2026 | Daniel Calkins KEY | Grant A | 16.7K | $0 |
| Jan 12, 2026 | Dan Paterson KEY 10b5-1 | Sell S | 10.3K | $73.9K |
| Jan 12, 2026 | Daniel Calkins KEY 10b5-1 | Sell S | 5.0K | $36.1K |
About VSTM insider trading
This page tracks insider transactions for Verastem, Inc. (VSTM) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.