$VSTM insider trading
Over the last 12 months, Verastem insiders reported no purchases and 21 sales totaling $788K across SEC Form 4 filings. 100% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- — 0 events
- Sold · 12m
- $788K 21 events
- Events · 12m
- 21 Form 4 filings, grouped
- Insiders · 12m
- 6 distinct reporters
- 10b5-1 share
- 100% of events, not dollars
All insider trades
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 3, 2026 | Paterson DanPresident and CEO · O·D | ▼ Sale | 1,302 | $5.81 | $8K | -0.2% | plan |
| Jun 22, 2026 | Paterson DanPresident and CEO · O·D | ▼ Sale | 20,871 | $4.18 | $87K | -3.4% | plan |
| Jun 22, 2026 | Calkins DanielChief Financial Officer · O | ▼ Sale | 4,089 | $4.18 | $17K | -3.4% | plan · 2 tranches |
| May 4, 2026 | Paterson DanPresident and CEO · O·D | ▼ Sale | 806 | $5.82 | $5K | -0.1% | plan |
| Feb 4, 2026 | Paterson DanPresident and CEO · O·D | ▼ Sale | 970 | $6.69 | $6K | -0.2% | plan |
| Jan 12, 2026 | Paterson DanPresident and CEO · O·D | ▼ Sale | 10,321 | $7.16 | $74K | -2.5% | plan |
| Jan 12, 2026 | Calkins DanielChief Financial Officer · O | ▼ Sale | 5,039 | $7.16 | $36K | -4.6% | plan |
| Dec 24, 2025 | Calkins DanielChief Financial Officer · O | ▼ Sale | 80 | $7.86 | $629 | -0.1% | plan |
| Dec 16, 2025 | Stuglik Brian MD | ▼ Sale | 592 | $9.14 | $5K | -0.6% | plan |
| Dec 16, 2025 | Paterson DanPresident and CEO · O·D | ▼ Sale | 393 | $9.14 | $4K | -0.1% | plan |
| Dec 16, 2025 | Gagnon Robert E.D | ▼ Sale | 283 | $9.14 | $3K | -0.7% | plan |
| Dec 11, 2025 | Paterson DanPresident and CEO · O·D | ▼ Sale | 4,000 | $10.04 | $40K | -1% | plan · 2 tranches |
| Dec 9, 2025 | Paterson DanPresident and CEO · O·D | ▼ Sale | 6,000 | $10.45 | $63K | -1.4% | plan · 3 tranches |
| Dec 4, 2025 | Paterson DanPresident and CEO · O·D | ▼ Sale | 6,000 | $10.11 | $61K | -1.4% | plan · 3 tranches |
| Dec 1, 2025 | Paterson DanPresident and CEO · O·D | ▼ Sale | 6,000 | $10.5 | $63K | -1.4% | plan · 3 tranches |
| Nov 25, 2025 | Paterson DanPresident and CEO · O·D | ▼ Sale | 6,000 | $10 | $60K | -1.4% | plan · 3 tranches |
| Nov 21, 2025 | Bunn Paul A.D | ▼ Sale | 6,250 | $10 | $63K | -75% | plan |
| Nov 21, 2025 | Kauffman MichaelD | ▼ Sale | 8,550 | $10 | $86K | -49.7% | plan |
| Nov 3, 2025 | Paterson DanPresident and CEO · O·D | ▼ Sale | 3,299 | $9.74 | $32K | -0.7% | plan · 2 tranches |
| Oct 9, 2025 | Bunn Paul A.D | ▼ Sale | 8,333 | $9.06 | $75K | -50% | plan |
| Sep 24, 2025 | Calkins DanielChief Financial Officer · O | ▼ Sale | 82 | $9.13 | $748 | -0.1% | plan · 2 tranches |
| Sep 16, 2025 | Stuglik Brian MD | ▼ Sale | 587 | $9.99 | $6K | -0.6% | plan |
| Sep 16, 2025 | Gagnon Robert E.D | ▼ Sale | 281 | $9.99 | $3K | -0.7% | plan |
| Sep 16, 2025 | Paterson DanPresident and CEO · O·D | ▼ Sale | 390 | $9.99 | $4K | -0.1% | plan |
Every $VSTM filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Verastem filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $VSTM feed.