Verastem (VSTM) stock: insider trades, news & valuation
Heavy sellingShare price and insider trades
Verastem insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 6 sold $1.2M of VSTM stock on the open market.
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VSTM insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | $373K | 2 |
| Q3 2026 | — | 0 | $8K | 2 |
| Q2 2026 | — | 0 | $109K | 4 |
| Q1 2026 | — | 0 | $116K | 3 |
| Q4 2025 | — | 0 | $554K | 23 |
Valuation, profit and volume
Summary
Over the past 12 months, 0 Verastem, Inc. insiders reported open-market purchases totaling $0, while 6 insiders reported sales totaling $1.2M. 34 of 34 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Oct 2SEC | Dan PatersonCEO, President | Sell Plan | 44,121652,712 held (−6%) | $8.00 | $353K | +4.8% | — |
| Oct 2SEC | Daniel CalkinsCFO | Sell Plan | 2,566123,781 held (−2%) | $8.00 | $21K | +4.8% | — |
| Sep 23SEC | Daniel CalkinsCFO | Sell Plan | 55118,014 held (−0%) | $7.70 | $424 | +8.8% | — |
| Aug 5SEC | Dan PatersonCEO, President | Sell Plan | 1,302589,940 held (−0%) | $5.81 | $8K | +44.2% | — |
| Jun 24SEC | Dan PatersonCEO, President | Sell Plan | 20,871591,242 held (−3%) | $4.18 | $87K | +100.5% | — |
| Jun 24SEC | Daniel CalkinsCFO | Sell Plan | 4,032117,295 held (−3%) | $4.18 | $17K | +100.5% | — |
| Jun 24SEC | Daniel CalkinsCFO | Sell Plan | 57117,238 held (−0%) | $4.13 | $235 | +102.9% | — |
| May 6SEC | Dan PatersonCEO, President | Sell Plan | 806612,113 held (−0%) | $5.82 | $5K | +44.0% | — |
| Feb 5SEC | Dan PatersonCEO, President | Sell Plan | 970612,919 held (−0%) | $6.69 | $6K | +25.3% | — |
| Jan 14SEC | Dan PatersonCEO, President | Sell Plan | 10,321400,104 held (−3%) | $7.16 | $74K | +17.0% | — |
| Jan 14SEC | Daniel CalkinsCFO | Sell Plan | 5,039104,719 held (−5%) | $7.16 | $36K | +17.0% | — |
| Dec 29SEC | Daniel CalkinsCFO | Sell Plan | 80109,758 held (−0%) | $7.86 | $629 | +6.6% | — |
| Dec 18SEC | Brian M StuglikDirector | Sell Plan | 592101,147 held (−1%) | $9.14 | $5K | -8.3% | — |
| Dec 18SEC | Dan PatersonCEO, President | Sell Plan | 393410,425 held (−0%) | $9.14 | $4K | -8.3% | — |
| Dec 18SEC | Robert E. GagnonDirector | Sell Plan | 28341,678 held (−1%) | $9.14 | $3K | -8.3% | — |
| Dec 12SEC | Dan PatersonCEO, President | Sell Plan | 2,000412,818 held (−0%) | $10.07 | $20K | -16.8% | — |
| Dec 12SEC | Dan PatersonCEO, President | Sell Plan | 2,000410,818 held (−0%) | $10.00 | $20K | -16.2% | — |
| Dec 9SEC | Dan PatersonCEO, President | Sell Plan | 2,000418,818 held (−0%) | $10.61 | $21K | -21.0% | — |
| Dec 9SEC | Dan PatersonCEO, President | Sell Plan | 2,000416,818 held (−0%) | $10.50 | $21K | -20.2% | — |
| Dec 9SEC | Dan PatersonCEO, President | Sell Plan | 2,000414,818 held (−0%) | $10.25 | $20K | -18.2% | — |
| Dec 4SEC | Dan PatersonCEO, President | Sell Plan | 2,000424,818 held (−0%) | $10.32 | $21K | -18.8% | — |
| Dec 4SEC | Dan PatersonCEO, President | Sell Plan | 2,000422,818 held (−0%) | $10.00 | $20K | -16.2% | — |
| Dec 4SEC | Dan PatersonCEO, President | Sell Plan | 2,000420,818 held (−0%) | $10.00 | $20K | -16.2% | — |
| Dec 1SEC | Dan PatersonCEO, President | Sell Plan | 2,000428,818 held (−0%) | $10.79 | $22K | -22.3% | — |
| Dec 1SEC | Dan PatersonCEO, President | Sell Plan | 2,000426,818 held (−0%) | $10.39 | $21K | -19.3% | — |
| Dec 1SEC | Dan PatersonCEO, President | Sell Plan | 2,000430,818 held (−0%) | $10.32 | $21K | -18.8% | — |
| Nov 25SEC | Michael KauffmanDirector | Sell Plan | 8,5508,666 held (−50%) | $10.00 | $86K | -16.2% | — |
| Nov 25SEC | Paul A. BunnDirector | Sell Plan | 6,2502,083 held (−75%) | $10.00 | $62K | -16.2% | — |
| Nov 25SEC | Dan PatersonCEO, President | Sell Plan | 2,000436,818 held (−0%) | $10.00 | $20K | -16.2% | — |
| Nov 25SEC | Dan PatersonCEO, President | Sell Plan | 2,000434,818 held (−0%) | $10.00 | $20K | -16.2% | — |
| Nov 25SEC | Dan PatersonCEO, President | Sell Plan | 2,000432,818 held (−0%) | $10.00 | $20K | -16.2% | — |
| Nov 6SEC | Dan PatersonCEO, President | Sell Plan | 2,000438,818 held (−0%) | $10.00 | $20K | -16.2% | — |
| Nov 6SEC | Dan PatersonCEO, President | Sell Plan | 1,299440,818 held (−0%) | $9.35 | $12K | -10.4% | — |
| Oct 14SEC | Paul A. BunnDirector | Sell Plan | 8,3338,333 held (−50%) | $9.06 | $75K | -7.5% | — |
Insiders at Verastem, Inc.
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Dan PatersonCEO, President | — | $855K | Oct 2, 2026 | — |
| Paul A. BunnDirector | — | $138K | Nov 25, 2025 | — |
| Michael KauffmanDirector | — | $86K | Nov 25, 2025 | — |
| Daniel CalkinsCFO | — | $75K | Oct 2, 2026 | — |
| Brian M StuglikDirector | — | $5K | Dec 18, 2025 | — |
| Robert E. GagnonDirector | — | $3K | Dec 18, 2025 | — |
VSTM stock: common questions
Are Verastem, Inc. insiders buying VSTM stock?
In the past 12 months, 0 insiders reported open-market purchases of VSTM worth $0.
Are Verastem, Inc. insiders selling VSTM stock?
6 insiders reported sales worth $1.2M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is VSTM's 52-week range?
Over the past year VSTM has traded between $3.45 and $10.64. It last closed at $8.38 on Oct 9, 2026.