Jonathan Anderman insider trades: Compass Therapeutics (CMPX) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Jonathan reports to the SEC
Open-market buys and sales
2 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 29, 2026 | CMPX | ↑ Buy | 25,000 | $1.89 | $47K | Direct | Apr 30, 2026 (1d) |
| Apr 7, 2025 | CMPX | ↑ Buy | 20,000 | $1.54 | $31K | Direct | Apr 8, 2025 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other CMPX insiders
Open-market trades in the last 12 months
About Jonathan Anderman's insider trades
Jonathan Anderman is General Counsel at Compass Therapeutics (CMPX). Since Apr 7, 2025, Jonathan has reported 2 open-market purchases worth $78K and no sales on SEC Form 4. In the last 12 months: 1 buy ($47K).
Their filings also include grants and awards (4 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every CMPX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.