Acumen Pharmaceuticals, Inc. insider trading
ABOS$2.04-0.03 (-1.45% today)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+15.3%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26
Unlock quarterly net flowKey players
- DJDaniel Joseph OConnell1.2186%
- MZMatt Zuga0.4216%
- ESEric Siemers0.3531%
- JJJames J. Doherty0.3055%
- JAJohn A. Stalfort III0.3051%
- RBRussell Barton0.2836%
- DMDerek M. Meisner0.2406%
- ASAmy Schacterle0.1276%
- KCKimberlee C. Drapkin0.0668%
- JLJeffrey L. Ives0.0668%
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| ABOS | Derrell Porter | Open market sell$29.8K | -26.5% | $2.33 | $29.8K | Jun 16, 2026 | Jun 17, 2026 |
| ABOS | Nathan B. Fountain | Open market sell$14.3K | -11.7% | $2.23 | $14.3K | Jun 9, 2026 | Jun 10, 2026 |
| ABOS | Derek M. Meisner | Open market sell$10.7K | -3.1% | $1.90 | $10.7K | Jan 23, 2026 | Jan 23, 2026 |
| ABOS | Derek M. Meisner | Open market sell$1.94K | -0.6% | $1.84 | $1.94K | Jan 22, 2026 | Jan 23, 2026 |
| ABOS | Eric Siemers | Open market sell$1.63K | -0.4% | $1.82 | $1.63K | Jan 22, 2026 | Jan 23, 2026 |
| ABOS | Matt Zuga | Open market sell$3.14K | -0.6% | $1.86 | $3.14K | Jan 22, 2026 | Jan 23, 2026 |
| ABOS | Daniel Joseph OConnell | Open market sell$5.06K | -0.3% | $1.88 | $5.06K | Jan 22, 2026 | Jan 23, 2026 |
| ABOS | Russell Barton | Open market sell$850 | -0.2% | $1.84 | $850 | Jan 22, 2026 | Jan 23, 2026 |
| ABOS | Derek M. Meisner | Open market sell$4.07K | -1.2% | $1.81 | $4.07K | Jan 21, 2026 | Jan 23, 2026 |
| ABOS | Eric Siemers | Open market sell$4.2K | -0.9% | $1.80 | $4.2K | Jan 21, 2026 | Jan 23, 2026 |
| ABOS | Matt Zuga | Open market sell$4.48K | -0.8% | $1.81 | $4.48K | Jan 21, 2026 | Jan 23, 2026 |
| ABOS | Daniel Joseph OConnell | Open market sell$16.9K | -1.1% | $1.81 | $16.9K | Jan 21, 2026 | Jan 23, 2026 |
| ABOS | Russell Barton | Open market sell$4.19K | -1.1% | $1.81 | $4.19K | Jan 21, 2026 | Jan 23, 2026 |
| ABOS | Derek M. Meisner | Open market sell$14.6K | -9.3% | $1.71 | $14.6K | Jan 12, 2026 | Jan 12, 2026 |
| ABOS | Daniel Joseph OConnell | Open market sell$9.32K | -0.9% | $1.73 | $9.32K | Jan 12, 2026 | Jan 12, 2026 |
| ABOS | Derek M. Meisner | Open market sell$9.15K | -5.3% | $1.76 | $9.15K | Jan 9, 2026 | Jan 12, 2026 |
| ABOS | Daniel Joseph OConnell | Open market sell$22.8K | -2.1% | $1.76 | $22.8K | Jan 9, 2026 | Jan 12, 2026 |
| ABOS | Matt Zuga | Open market sell$12.5K | -3.2% | $1.82 | $12.5K | Jan 8, 2026 | Jan 12, 2026 |
| ABOS | Russell Barton | Open market sell$6.57K | -2.8% | $1.86 | $6.57K | Jan 8, 2026 | Jan 12, 2026 |
| ABOS | Derek M. Meisner | Open market sell$54.8K | -23.6% | $1.82 | $54.8K | Jan 8, 2026 | Jan 12, 2026 |
| ABOS | Derek M. Meisner | Open market sell$12.4K | -5.1% | $1.82 | $12.4K | Jan 8, 2026 | Jan 12, 2026 |
| ABOS | Daniel Joseph OConnell | Open market sell$14.8K | -1.3% | $1.82 | $14.8K | Jan 8, 2026 | Jan 12, 2026 |
| ABOS | James J. Doherty | Open market sell$11.8K | -10.7% | $1.82 | $11.8K | Jan 8, 2026 | Jan 9, 2026 |
| ABOS | James J. Doherty | Open market sell$3.38K | -2.7% | $1.99 | $3.38K | Jan 7, 2026 | Jan 9, 2026 |
| ABOS | Amy Schacterle | Open market sell$2.17K | -12.5% | $1.98 | $2.17K | Jan 7, 2026 | Jan 9, 2026 |
| ABOS | Matt Zuga | Open market sell$3.38K | -0.8% | $1.99 | $3.38K | Jan 7, 2026 | Jan 7, 2026 |
| ABOS | Matt Zuga | Open market sell$8.21K | -1.8% | $2.00 | $8.21K | Jan 7, 2026 | Jan 7, 2026 |
| ABOS | Daniel Joseph OConnell | Open market sell$75.1K | -5.7% | $1.99 | $75.1K | Jan 7, 2026 | Jan 7, 2026 |
| ABOS | Derek M. Meisner | Open market sell$20K | -7.0% | $1.99 | $20K | Jan 7, 2026 | Jan 7, 2026 |
| ABOS | Derek M. Meisner | Open market sell$3.38K | -1.2% | $1.99 | $3.38K | Jan 7, 2026 | Jan 7, 2026 |
| ABOS | Russell Barton | Open market sell$3.38K | -1.3% | $1.99 | $3.38K | Jan 7, 2026 | Jan 7, 2026 |
| ABOS | Matt Zuga | Open market sell$10K | -2.2% | $1.97 | $10K | Jan 6, 2026 | Jan 7, 2026 |
| ABOS | Eric Siemers | Open market sell$13.5K | -4.1% | $1.97 | $13.5K | Jan 6, 2026 | Jan 7, 2026 |
| ABOS | Daniel Joseph OConnell | Open market sell$10.1K | -0.8% | $1.97 | $10.1K | Jan 6, 2026 | Jan 7, 2026 |
| ABOS | Derek M. Meisner | Open market sell$7.49K | -2.5% | $1.97 | $7.49K | Jan 6, 2026 | Jan 7, 2026 |
| ABOS | Derek M. Meisner | Open market sell$14K | -4.5% | $1.97 | $14K | Jan 6, 2026 | Jan 7, 2026 |
| ABOS | Russell Barton | Open market sell$7.13K | -2.7% | $1.97 | $7.13K | Jan 6, 2026 | Jan 7, 2026 |
| ABOS | Matt Zuga | Open market sell$7.84K | -1.7% | $1.96 | $7.84K | Jan 5, 2026 | Jan 7, 2026 |
| ABOS | Eric Siemers | Open market sell$7.84K | -2.4% | $1.96 | $7.84K | Jan 5, 2026 | Jan 7, 2026 |
| ABOS | Daniel Joseph OConnell | Open market sell$9.16K | -0.7% | $1.97 | $9.16K | Jan 5, 2026 | Jan 7, 2026 |
| ABOS | Derek M. Meisner | Open market sell$7.84K | -2.5% | $1.96 | $7.84K | Jan 5, 2026 | Jan 7, 2026 |
| ABOS | Russell Barton | Open market sell$7.84K | -2.9% | $1.96 | $7.84K | Jan 5, 2026 | Jan 7, 2026 |