Derrell Porter insider trades: Acumen Pharmaceuticals (ABOS) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Derrell reports to the SEC
Open-market buys and sales
4 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 17, 2026 | ABOS | ↓ Sell | 32,300 | $2.33 | $75K | Direct | Jun 17, 2026 (0d) |
| Feb 15, 2019 | ATRA | ↓ Sell | 5,909 | $40.00 | $236K | Direct | Feb 19, 2019 (4d) |
| May 15, 2018 | ATRA | ↓ Sell | 16,334 | $45.02 | $735K | Direct | May 16, 2018 (1d) |
| May 8, 2018 | ATRA | ↓ Sell | 1,544 | $40.15 | $62K | Direct | May 8, 2018 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ABOS insiders
Open-market trades in the last 12 months
About Derrell Porter's insider trades
Derrell Porter is a director at Acumen Pharmaceuticals (ABOS). Since May 8, 2018, Derrell has reported no open-market purchases and 4 sales worth $1.1M on SEC Form 4. In the last 12 months: 1 sale ($75K).
Their filings also include grants and awards (14 filings), option exercises (3 filings), shares withheld for taxes (1 filing). 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 ABOS insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.