Verastem, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Verastem, Inc. (VSTM), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are VSTM insiders buying or selling?
In the last 12 months, Verastem, Inc. insiders reported 0 open-market purchases ($0) and 23 sales ($1.2M) — net selling of $1.2M. Since June 2018, Trabud has recorded 133 Form 4 filings for VSTM: 13 buys ($502.9K) and 120 sells ($7.8M).
Source: SEC EDGAR Form 4
Key Statistics (June 2018 – Oct 2, 2026)
Total Form 4 filings
133
SEC EDGAR
Insider filers
12
Insider buys (13)
$502.9K
Insider sells (120)
$7.8M
Insider sentiment
Net sellingNet insider flow of $7.3M in net selling since June 2018, and $1.2M in net selling over the last 12 months.
Recent VSTM insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Oct 2, 2026 | Dan Paterson | President and CEO | Sale | 44.1K | $8.00 | $353.0K | SEC ↗ |
| Oct 2, 2026 | Daniel Calkins | Chief Financial Officer | Sale | 2.6K | $8.00 | $20.5K | SEC ↗ |
| Sep 24, 2026 | Daniel Calkins | Chief Financial Officer | Sale | 55 | $7.70 | $423.5 | SEC ↗ |
| Aug 5, 2026 | Dan Paterson | President and CEO | Sale | 1.3K | $5.81 | $7.6K | SEC ↗ |
| Jun 24, 2026 | Dan Paterson | President and CEO | Sale | 20.9K | $4.18 | $87.2K | SEC ↗ |
| Jun 24, 2026 | Daniel Calkins | Chief Financial Officer | Sale | 4.1K | $4.18 | $17.1K | SEC ↗ |
| May 6, 2026 | Dan Paterson | President and CEO | Sale | 806 | $5.82 | $4.7K | SEC ↗ |
| Feb 5, 2026 | Dan Paterson | President and CEO | Sale | 970 | $6.69 | $6.5K | SEC ↗ |
| Jan 14, 2026 | Dan Paterson | President and CEO | Sale | 10.3K | $7.16 | $73.9K | SEC ↗ |
| Jan 14, 2026 | Daniel Calkins | Chief Financial Officer | Sale | 5.0K | $7.16 | $36.1K | SEC ↗ |
| Dec 29, 2025 | Daniel Calkins | Chief Financial Officer | Sale | 80 | $7.86 | $628.8 | SEC ↗ |
| Dec 18, 2025 | Brian M Stuglik | Director | Sale | 592 | $9.14 | $5.4K | SEC ↗ |
| Dec 18, 2025 | Dan Paterson | President and CEO | Sale | 393 | $9.14 | $3.6K | SEC ↗ |
| Dec 18, 2025 | Robert E. Gagnon | Director | Sale | 283 | $9.14 | $2.6K | SEC ↗ |
| Dec 12, 2025 | Dan Paterson | President and CEO | Sale | 4.0K | $10.04 | $40.1K | SEC ↗ |
| Dec 9, 2025 | Dan Paterson | President and CEO | Sale | 6.0K | $10.45 | $62.7K | SEC ↗ |
| Dec 4, 2025 | Dan Paterson | President and CEO | Sale | 6.0K | $10.11 | $60.6K | SEC ↗ |
| Dec 1, 2025 | Dan Paterson | President and CEO | Sale | 6.0K | $10.50 | $63.0K | SEC ↗ |
| Nov 25, 2025 | Paul A. Bunn | Director | Sale | 6.3K | $10.00 | $62.5K | SEC ↗ |
| Nov 25, 2025 | Michael Kauffman | Director | Sale | 8.6K | $10.00 | $85.5K | SEC ↗ |
| Nov 25, 2025 | Dan Paterson | President and CEO | Sale | 6.0K | $10.00 | $60.0K | SEC ↗ |
| Nov 6, 2025 | Dan Paterson | President and CEO | Sale | 3.3K | $9.74 | $32.1K | SEC ↗ |
| Oct 14, 2025 | Paul A. Bunn | Director | Sale | 8.3K | $9.06 | $75.5K | SEC ↗ |
| Sep 24, 2025 | Daniel Calkins | Chief Financial Officer | Sale | 82 | $9.13 | $748.31 | SEC ↗ |
| Sep 18, 2025 | Brian M Stuglik | Director | Sale | 587 | $9.99 | $5.9K | SEC ↗ |
Showing the 25 most recent of 133 Form 4 filings for Verastem, Inc..
Most active VSTM insiders
- Dan Paterson42 filings
- Daniel Calkins30 filings
- Brian M Stuglik24 filings
- Robert E. Gagnon22 filings
- BARBERICH TIMOTHY J3 filings
Ask anything about VSTM insider activity
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Open the AI agentVSTM insider trading FAQ
Are Verastem, Inc. insiders buying or selling?
In the last 12 months, Verastem, Inc. insiders reported 0 open-market purchases ($0) and 23 sales ($1.2M) — net selling of $1.2M. Since June 2018, Trabud has recorded 133 Form 4 filings for VSTM: 13 buys ($502.9K) and 120 sells ($7.8M). Over the full record that is net selling of $7.3M.
How many insiders trade VSTM stock?
12 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Verastem, Inc.. The most recent filing was accepted on Oct 2, 2026.
Where does Trabud get VSTM insider trading data?
All VSTM insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.