VSTM
Verastem, Inc. · Healthcare · Market cap $909.3M
Insiders sold $381K net in the last 90 days ·2 sellers, 0 buyers· latest Form 4 filed Oct 2, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$1.1M
reported sales (SEC code S)
Unique Insiders
6
in the rolling window
Latest filing
Oct 2, 2026
Calkins Daniel
Verastem, Inc. (VSTM) has 33 SEC Form 4 filings (47 transaction rows) in the rolling window, disclosed by 6 distinct insiders. Most recent filing: Oct 2, 2026.
Inside the rolling window, 6 insiders at Verastem, Inc. reported no open-market purchases and 31 open-market sales totaling $1.1M. The most active filer is President and CEO Paterson Dan with 22 filings. Insiders have net sold $491K over the trailing 6 months. The most recent open-market filing is a sale of 2,566 shares by Chief Financial Officer Calkins Daniel, dated Oct 1, 2026, worth $21K.
- Industry:Biotechnology
- CEO:Daniel W. Paterson
- Employees:102
- HQ:Needham, MA, US
- IPO:2012-01-27
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Chief Financial Officer | Sale | 2,566 | $21K | Oct 2 | +30.4% | SEC ↗ | |
| President and CEO | Sale | 44,121 | $353K | Oct 2 | +30.4% | SEC ↗ | |
Calkins DanielFirst in 3 months | Chief Financial Officer | Sale | 55 | $424 | Sep 24 | +28.7% | SEC ↗ |
| President and CEO | Sale | 1,302 | $8K | Aug 5 | +71.0% | SEC ↗ | |
| President and CEO | Sale | 20,871 | $87K | Jun 24 | +160.8% | SEC ↗ | |
Calkins DanielFirst in 5 months | Chief Financial Officer | Sale | 4,089 | $17K | Jun 24 | +160.8% | SEC ↗ |
Paterson DanFirst in 3 months | President and CEO | Sale | 806 | $5K | May 6 | +67.1% | SEC ↗ |
| President and CEO | Sale | 970 | $6K | Feb 5 | +59.9% | SEC ↗ | |
| Chief Financial Officer | Sale | 5,039 | $36K | Jan 14 | +47.9% | SEC ↗ | |
| President and CEO | Sale | 10,321 | $74K | Jan 14 | — | SEC ↗ | |
Calkins DanielFirst filing | Chief Financial Officer | Sale | 80 | $629 | Dec 29 | — | SEC ↗ |
Stuglik Brian MFirst filing | Director | Sale | 592 | $5K | Dec 18 | — | SEC ↗ |
Gagnon Robert E.First filing | Director | Sale | 283 | $3K | Dec 18 | — | SEC ↗ |
| President and CEO | Sale | 393 | $4K | Dec 18 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $20K | Dec 12 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $20K | Dec 12 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $21K | Dec 9 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $21K | Dec 9 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $21K | Dec 9 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $21K | Dec 4 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $20K | Dec 4 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $20K | Dec 4 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $21K | Dec 1 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $22K | Dec 1 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $21K | Dec 1 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does VSTM have?
Verastem, Inc. (VSTM) has 33 SEC Form 4 filings (47 transaction rows) in the rolling 365-day window, disclosed by 6 distinct insiders. Most recent filing: Oct 2, 2026.
When was the most recent SEC Form 4 filing for VSTM?
The most recent Form 4 filing for VSTM on Tracefour is dated Oct 2, 2026.
Who is the most active insider at VSTM?
The most active SEC Form 4 filer at VSTM in the rolling window is President and CEO Paterson Dan, with 22 filings.
What is the net insider flow at VSTM over the last 6 months?
Over the trailing 180 days, insiders at VSTM have net sold $491K based on SEC Form 4 disclosures.
What is the total insider buy and sell value at VSTM in the current window?
Inside the rolling window, insiders at VSTM bought $0 and sold $1.1M based on SEC Form 4 filings.
Can I get alerts for VSTM insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Verastem, Inc. (VSTM). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Verastem, Inc. is in the Healthcare sector.