Neil Lerner insider trades: Compass Therapeutics (CMPX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Neil reports to the SEC
Open-market buys and sales
11 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | CMPX | ↑ Buy | 20,000 | $0.92 | $18K | Direct | Oct 2, 2026 (1d) |
| Sep 24, 2026 | CMPX | ↑ Buy | 2,500 | $1.14 | $3K | Direct | Sep 25, 2026 (1d) |
| Apr 29, 2026 | CMPX | ↑ Buy | 15,000 | $1.89 | $28K | Direct | Apr 30, 2026 (1d) |
| Apr 7, 2025 | CMPX | ↑ Buy | 20,000 | $1.42 | $28K | Direct | Apr 8, 2025 (1d) |
| Mar 12, 2019 | PMD | ↓ Sell | 9,057 | $15.10 | $137K | Direct | Mar 13, 2019 (1d) |
| May 22, 2018 | PMD | ↓ Sell | 4,892 | $20.08 | $98K | Direct | May 23, 2018 (1d) |
| Nov 18, 2016 | PMD | ↓ Sell | 3,000 | $24.75 | $74K | Direct | Nov 21, 2016 (3d) |
| Sep 10, 2015 | PMD | ↑ Buy | 3,000 | $10.32 | $31K | Direct | Sep 14, 2015 (4d) |
| Jun 15, 2012 | PMD | ↑ Buy | 2,500 | $9.80 | $25K | Direct | Jun 19, 2012 (4d) |
| May 25, 2011 | PMD | ↑ Buy | 5,895 | $10.01 | $59K | Direct | May 26, 2011 (1d) |
| Mar 17, 2011 | PMD | ↑ Buy | 2,000 | $9.09 | $18K | Direct | Mar 21, 2011 (4d) |
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 Neil Lerner's insider trades
Neil Lerner is Chief Accounting Officer at Compass Therapeutics (CMPX). Since Mar 17, 2011, Neil has reported 8 open-market purchases worth $211K and 3 sales worth $309K on SEC Form 4. In the last 12 months: 3 buys ($50K).
Their filings also include shares withheld for taxes (15 filings), grants and awards (14 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.