Paterson Dan sold $353K of VSTM
Paterson Dan (President and CEO) sold 44,121 shares of Verastem, Inc. (VSTM) at $8.00 ($0.35M total) on 2026-10-01 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
Provides fresh, primary‑source data on insider activity, useful for short‑term risk assessment.
Market read
Insider sale is a modest but material event for VSTM shareholders; limited broader market relevance.
What to watch
Potential upcoming clinical data releases may offset short‑term sell pressure.
Background
SEC Form 4 filing discloses an insider transaction by Verastem's CEO.
Ticker impact
Form 4 filing shows CEO sold 44,121 shares for $352,968, a direct insider sale via 10b5-1 plan.
likely slight pressure as the market prices in the insider sale
Sale size is modest but involves the CEO; such transactions often prompt short-term selling pressure.
Market effects
Minimal impact on the biotech sector; insider sales are company‑specific.
No broader regional effect.
Limited to investors tracking VSTM.
Counterpoint
The sale could be a routine liquidity event unrelated to fundamentals.
Key entities
- companyVerastem, Inc.
Biotech firm listed on NASDAQ under ticker VSTM.
- personPaterson Dan
President and CEO of Verastem, filing the insider sale.



