Verastem, Inc.
Verastem, Inc. (VSTM) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · VSTM · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
33
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Verastem, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
VSTM insider buying and selling by quarter
VSTM insider selling · VSTM insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · VSTM ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
VSTM executive sell shares · VSTM board member insider trading · VSTM insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| May 21, 2026 | BAILEY MICHAEL P Director | Award | 108,000 | — | Form 4 |
| May 21, 2026 | Tollefson Karin Anna Director | Award | 36,000 | — | Form 4 |
| May 21, 2026 | Stuglik Brian M Director | Award | 36,000 | — | Form 4 |
| May 21, 2026 | Rowinsky Eric K Director | Award | 36,000 | — | Form 4 |
| May 21, 2026 | ROBERTSON MICHELLE Director | Award | 36,000 | — | Form 4 |
| May 21, 2026 | Kapur Anil Director | Award | 36,000 | — | Form 4 |
| May 21, 2026 | Bunn Paul A. Director | Award | 36,000 | — | Form 4 |
| May 21, 2026 | JOHNSON JOHN Director | Award | 36,000 | — | Form 4 |
| May 4, 2026 | Paterson Dan President and CEO · Director | Sale | 806 | $5K | Form 4 |
| Mar 20, 2026 | Calkins Daniel CFO | Award | 57 | $327 | Form 4 |
| Feb 4, 2026 | Paterson Dan President and CEO · Director | Sale | 970 | $6K | Form 4 |
| Jan 21, 2026 | Calkins Daniel CFO | Award | 16,665 | — | Form 4 |
| Jan 21, 2026 | Paterson Dan President and CEO · Director | Award | 213,785 | — | Form 4 |
| Jan 12, 2026 | Paterson Dan President and CEO · Director | Sale | 10,321 | $74K | Form 4 |
| Jan 12, 2026 | Calkins Daniel CFO | Sale | 5,039 | $36K | Form 4 |
| Dec 24, 2025 | Calkins Daniel CFO | Sale | 80 | $629 | Form 4 |
| Dec 16, 2025 | Stuglik Brian M Director | Sale | 592 | $5K | Form 4 |
| Dec 16, 2025 | Paterson Dan President and CEO · Director | Sale | 393 | $4K | Form 4 |
| Dec 16, 2025 | Gagnon Robert E. Director | Sale | 283 | $3K | Form 4 |
| Dec 10, 2025 | Paterson Dan President and CEO · Director | Sale | 2,000 | $20K | Form 4 |
| Dec 11, 2025 | Paterson Dan President and CEO · Director | Sale | 2,000 | $20K | Form 4 |
| Dec 5, 2025 | Paterson Dan President and CEO · Director | Sale | 2,000 | $21K | Form 4 |
| Dec 8, 2025 | Paterson Dan President and CEO · Director | Sale | 2,000 | $21K | Form 4 |
| Dec 9, 2025 | Paterson Dan President and CEO · Director | Sale | 2,000 | $21K | Form 4 |
| Dec 2, 2025 | Paterson Dan President and CEO · Director | Sale | 2,000 | $21K | Form 4 |
Paterson Dan
President and CEO · Director
Date
May 4
Shares
806
Price
$5.82
Value
$5K
Paterson Dan
President and CEO · Director
Date
Feb 4
Shares
970
Price
$6.69
Value
$6K
Paterson Dan
President and CEO · Director
Date
Jan 21
Shares
213,785
Price
—
Value
—
Paterson Dan
President and CEO · Director
Date
Jan 12
Shares
10,321
Price
$7.16
Value
$74K
Paterson Dan
President and CEO · Director
Date
Dec 16
Shares
393
Price
$9.14
Value
$4K
Paterson Dan
President and CEO · Director
Date
Dec 10
Shares
2,000
Price
$10.07
Value
$20K
Paterson Dan
President and CEO · Director
Date
Dec 11
Shares
2,000
Price
$10.00
Value
$20K
Paterson Dan
President and CEO · Director
Date
Dec 5
Shares
2,000
Price
$10.61
Value
$21K
Paterson Dan
President and CEO · Director
Date
Dec 8
Shares
2,000
Price
$10.50
Value
$21K
Paterson Dan
President and CEO · Director
Date
Dec 9
Shares
2,000
Price
$10.25
Value
$21K
Paterson Dan
President and CEO · Director
Date
Dec 2
Shares
2,000
Price
$10.32
Value
$21K
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About VSTM insider trading
VSTM insider trades
Verastem, Inc. (VSTM) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Paterson Dan (President and CEO · Director), Calkins Daniel (CFO), Stuglik Brian M (Director). Over the past 12 months, 5 insiders have filed transactions with the SEC. VSTM insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Verastem, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
VSTM insider trading · 5 questionsThe insiders of Verastem, Inc. (VSTM) include executives and directors such as Paterson Dan (President and CEO · Director), Calkins Daniel (CFO), Stuglik Brian M (Director), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026