ABOS
Acumen Pharmaceuticals, Inc.$2.67-0.24 (-8.07%)Prev Close$2.92·MCap$190.2M·P/E—·Vol351.9K·Yield—
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
36
$995.5K
◆
Net Activity
Net Seller
$995.5K
●
Active Insiders
7
last 12 mo
Over the past 12 months, insider activity at Acumen Pharmaceuticals, Inc. (ABOS) has been exclusively selling, with 0 insider purchases totaling $0.00 and 36 insider sales totaling $995.5K. The most recent insider transaction was by Meisner Derek M (officer: Chief Legal Officer & Corp Sec), who sold $6.8K worth of shares on Mar 10, 2026. Acumen Pharmaceuticals, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $190.2M.
ABOS Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Mar 10, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 2,090 | $3.26 | $6.8K | 173,999 |
| Mar 3, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 9,406 | $3.01 | $28.3K | 173,999 |
| Jan 28, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 17,756 | $3.00 | $53.3K | 173,999 |
| Jan 26, 2026 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 17,756 | $3.00 | $53.3K | 0 |
| Jan 23, 2026 | Barton Russell | officer: Chief Operating Officer | Sell | 2,315 | $1.81 | $4.2K | 205,554 |
| Jan 23, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 7,880 | $1.88 | $14.8K | 180,686 |
| Jan 23, 2026 | OConnell Daniel Joseph | director, officer: Chief Executive Officer | Sell | 12,035 | $1.83 | $22.0K | 883,964 |
| Jan 23, 2026 | Siemers Eric | officer: Chief Medical Officer | Sell | 2,331 | $1.80 | $4.2K | 256,266 |
| Jan 23, 2026 | Zuga Matt | officer: CFO & Chief Business Officer | Sell | 2,473 | $1.81 | $4.5K | 306,611 |
| Jan 21, 2026 | Barton Russell | Chief Operating Officer | Sell | 2,777 | $1.81 | $5.0K | 0 |
| Jan 21, 2026 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 8,934 | $1.87 | $16.7K | 0 |
| Jan 21, 2026 | OConnell Daniel Joseph | Chief Executive Officer | Sell | 12,035 | $1.83 | $22.0K | 0 |
| Jan 21, 2026 | Siemers Eric | Chief Medical Officer | Sell | 3,226 | $1.81 | $5.8K | 0 |
| Jan 21, 2026 | Zuga Matt | CFO & Chief Business Officer | Sell | 4,160 | $1.83 | $7.6K | 0 |
| Jan 12, 2026 | Barton Russell | officer: Chief Operating Officer | Sell | 3,530 | $1.86 | $6.6K | 123,269 |
| Jan 12, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 50,659 | $1.80 | $91.1K | 127,640 |
| Jan 12, 2026 | OConnell Daniel Joseph | director, officer: Chief Executive Officer | Sell | 26,472 | $1.77 | $47.0K | 611,839 |
| Jan 12, 2026 | Zuga Matt | officer: CFO & Chief Business Officer | Sell | 6,888 | $1.82 | $12.5K | 209,951 |
| Jan 9, 2026 | Doherty James J. | officer: President and CDO | Sell | 8,167 | $1.85 | $15.1K | 60,500 |
| Jan 9, 2026 | Schacterle Amy | officer: Chief Regulatory Officer | Sell | 1,097 | $1.98 | $2.2K | 7,703 |
| Jan 8, 2026 | Barton Russell | Chief Operating Officer | Sell | 3,530 | $1.86 | $6.6K | 0 |
| Jan 8, 2026 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 50,659 | $1.80 | $91.1K | 0 |
| Jan 8, 2026 | OConnell Daniel Joseph | Chief Executive Officer | Sell | 26,472 | $1.77 | $47.0K | 0 |
| Jan 8, 2026 | Zuga Matt | CFO & Chief Business Officer | Sell | 6,888 | $1.82 | $12.5K | 0 |
| Jan 7, 2026 | Barton Russell | officer: Chief Operating Officer | Sell | 9,318 | $1.97 | $18.3K | 132,117 |
| Jan 7, 2026 | Doherty James J. | President and CDO | Sell | 8,167 | $1.85 | $15.1K | 0 |
| Jan 7, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 26,668 | $1.98 | $52.7K | 157,127 |
| Jan 7, 2026 | OConnell Daniel Joseph | director, officer: Chief Executive Officer | Sell | 47,506 | $1.98 | $94.2K | 662,839 |
| Jan 7, 2026 | Schacterle Amy | Chief Regulatory Officer | Sell | 1,097 | $1.98 | $2.2K | 0 |
| Jan 7, 2026 | Siemers Eric | officer: Chief Medical Officer | Sell | 10,834 | $1.96 | $21.3K | 166,298 |
| Jan 7, 2026 | Zuga Matt | officer: CFO & Chief Business Officer | Sell | 14,905 | $1.97 | $29.4K | 227,744 |
| Jan 5, 2026 | Barton Russell | Chief Operating Officer | Sell | 3,618 | $1.97 | $7.1K | 0 |
| Jan 5, 2026 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 20,968 | $1.98 | $41.5K | 0 |
| Jan 5, 2026 | OConnell Daniel Joseph | Chief Executive Officer | Sell | 47,506 | $1.98 | $94.2K | 0 |
| Jan 5, 2026 | Siemers Eric | Chief Medical Officer | Sell | 6,834 | $1.97 | $13.4K | 0 |
| Jan 5, 2026 | Zuga Matt | CFO & Chief Business Officer | Sell | 13,205 | $1.97 | $26.1K | 0 |
| Jan 21, 2025 | Barton Russell | Chief Operating Officer | Sell | 2,914 | $1.61 | $4.7K | 0 |
| Jan 21, 2025 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 3,418 | $1.59 | $5.4K | 0 |
| Jan 21, 2025 | OConnell Daniel Joseph | Chief Executive Officer | Sell | 12,619 | $1.59 | $20.1K | 0 |
| Jan 21, 2025 | Siemers Eric | Chief Medical Officer | Sell | 3,219 | $1.59 | $5.1K | 0 |
| Jan 21, 2025 | Zuga Matt | CFO & Chief Business Officer | Sell | 33,266 | $1.70 | $56.6K | 0 |
| Jan 3, 2025 | Barton Russell | Chief Operating Officer | Sell | 7,636 | $1.86 | $14.2K | 0 |
| Jan 3, 2025 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 11,122 | $1.84 | $20.5K | 0 |
| Jan 3, 2025 | OConnell Daniel Joseph | Chief Executive Officer | Sell | 47,778 | $1.84 | $87.9K | 0 |
| Jan 3, 2025 | Siemers Eric | Chief Medical Officer | Sell | 10,859 | $1.85 | $20.0K | 0 |
| Jan 3, 2025 | Zuga Matt | CFO & Chief Business Officer | Sell | 13,235 | $1.84 | $24.4K | 0 |
| Jan 19, 2024 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 8,933 | $3.48 | $31.0K | 0 |
| Jan 19, 2024 | OConnell Daniel Joseph | President and CEO | Sell | 15,200 | $3.47 | $52.8K | 0 |
| Jan 18, 2024 | Barton Russell | Chief Operating Officer | Sell | 2,833 | $3.73 | $10.6K | 0 |
| Jan 18, 2024 | Siemers Eric | Chief Medical Officer | Sell | 3,124 | $3.71 | $11.6K | 0 |
Showing 1–50 of 58
1 / 2
ABOS Insider Buying Activity
The following table shows recent insider purchases of Acumen Pharmaceuticals, Inc. (ABOS) stock reported via SEC Form 4 filings.
No insider buying activity found for ABOS in the last 12 months.
ABOS Insider Selling Activity
The following table shows recent insider sales of Acumen Pharmaceuticals, Inc. (ABOS) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Mar 10, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 2,090 | $3.26 | $6.8K | 173,999 |
| Mar 3, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 9,406 | $3.01 | $28.3K | 173,999 |
| Jan 28, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 17,756 | $3.00 | $53.3K | 173,999 |
| Jan 26, 2026 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 17,756 | $3.00 | $53.3K | 0 |
| Jan 23, 2026 | Barton Russell | officer: Chief Operating Officer | Sell | 2,315 | $1.81 | $4.2K | 205,554 |
| Jan 23, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 7,880 | $1.88 | $14.8K | 180,686 |
| Jan 23, 2026 | OConnell Daniel Joseph | director, officer: Chief Executive Officer | Sell | 12,035 | $1.83 | $22.0K | 883,964 |
| Jan 23, 2026 | Siemers Eric | officer: Chief Medical Officer | Sell | 2,331 | $1.80 | $4.2K | 256,266 |
| Jan 23, 2026 | Zuga Matt | officer: CFO & Chief Business Officer | Sell | 2,473 | $1.81 | $4.5K | 306,611 |
| Jan 21, 2026 | Barton Russell | Chief Operating Officer | Sell | 2,777 | $1.81 | $5.0K | 0 |
| Jan 21, 2026 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 8,934 | $1.87 | $16.7K | 0 |
| Jan 21, 2026 | OConnell Daniel Joseph | Chief Executive Officer | Sell | 12,035 | $1.83 | $22.0K | 0 |
| Jan 21, 2026 | Siemers Eric | Chief Medical Officer | Sell | 3,226 | $1.81 | $5.8K | 0 |
| Jan 21, 2026 | Zuga Matt | CFO & Chief Business Officer | Sell | 4,160 | $1.83 | $7.6K | 0 |
| Jan 12, 2026 | Barton Russell | officer: Chief Operating Officer | Sell | 3,530 | $1.86 | $6.6K | 123,269 |
| Jan 12, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 50,659 | $1.80 | $91.1K | 127,640 |
| Jan 12, 2026 | OConnell Daniel Joseph | director, officer: Chief Executive Officer | Sell | 26,472 | $1.77 | $47.0K | 611,839 |
| Jan 12, 2026 | Zuga Matt | officer: CFO & Chief Business Officer | Sell | 6,888 | $1.82 | $12.5K | 209,951 |
| Jan 9, 2026 | Doherty James J. | officer: President and CDO | Sell | 8,167 | $1.85 | $15.1K | 60,500 |
| Jan 9, 2026 | Schacterle Amy | officer: Chief Regulatory Officer | Sell | 1,097 | $1.98 | $2.2K | 7,703 |
| Jan 8, 2026 | Barton Russell | Chief Operating Officer | Sell | 3,530 | $1.86 | $6.6K | 0 |
| Jan 8, 2026 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 50,659 | $1.80 | $91.1K | 0 |
| Jan 8, 2026 | OConnell Daniel Joseph | Chief Executive Officer | Sell | 26,472 | $1.77 | $47.0K | 0 |
| Jan 8, 2026 | Zuga Matt | CFO & Chief Business Officer | Sell | 6,888 | $1.82 | $12.5K | 0 |
| Jan 7, 2026 | Barton Russell | officer: Chief Operating Officer | Sell | 9,318 | $1.97 | $18.3K | 132,117 |
| Jan 7, 2026 | Doherty James J. | President and CDO | Sell | 8,167 | $1.85 | $15.1K | 0 |
| Jan 7, 2026 | Meisner Derek M | officer: Chief Legal Officer & Corp Sec | Sell | 26,668 | $1.98 | $52.7K | 157,127 |
| Jan 7, 2026 | OConnell Daniel Joseph | director, officer: Chief Executive Officer | Sell | 47,506 | $1.98 | $94.2K | 662,839 |
| Jan 7, 2026 | Schacterle Amy | Chief Regulatory Officer | Sell | 1,097 | $1.98 | $2.2K | 0 |
| Jan 7, 2026 | Siemers Eric | officer: Chief Medical Officer | Sell | 10,834 | $1.96 | $21.3K | 166,298 |
| Jan 7, 2026 | Zuga Matt | officer: CFO & Chief Business Officer | Sell | 14,905 | $1.97 | $29.4K | 227,744 |
| Jan 5, 2026 | Barton Russell | Chief Operating Officer | Sell | 3,618 | $1.97 | $7.1K | 0 |
| Jan 5, 2026 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 20,968 | $1.98 | $41.5K | 0 |
| Jan 5, 2026 | OConnell Daniel Joseph | Chief Executive Officer | Sell | 47,506 | $1.98 | $94.2K | 0 |
| Jan 5, 2026 | Siemers Eric | Chief Medical Officer | Sell | 6,834 | $1.97 | $13.4K | 0 |
| Jan 5, 2026 | Zuga Matt | CFO & Chief Business Officer | Sell | 13,205 | $1.97 | $26.1K | 0 |
| Jan 21, 2025 | Barton Russell | Chief Operating Officer | Sell | 2,914 | $1.61 | $4.7K | 0 |
| Jan 21, 2025 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 3,418 | $1.59 | $5.4K | 0 |
| Jan 21, 2025 | OConnell Daniel Joseph | Chief Executive Officer | Sell | 12,619 | $1.59 | $20.1K | 0 |
| Jan 21, 2025 | Siemers Eric | Chief Medical Officer | Sell | 3,219 | $1.59 | $5.1K | 0 |
| Jan 21, 2025 | Zuga Matt | CFO & Chief Business Officer | Sell | 33,266 | $1.70 | $56.6K | 0 |
| Jan 3, 2025 | Barton Russell | Chief Operating Officer | Sell | 7,636 | $1.86 | $14.2K | 0 |
| Jan 3, 2025 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 11,122 | $1.84 | $20.5K | 0 |
| Jan 3, 2025 | OConnell Daniel Joseph | Chief Executive Officer | Sell | 47,778 | $1.84 | $87.9K | 0 |
| Jan 3, 2025 | Siemers Eric | Chief Medical Officer | Sell | 10,859 | $1.85 | $20.0K | 0 |
| Jan 3, 2025 | Zuga Matt | CFO & Chief Business Officer | Sell | 13,235 | $1.84 | $24.4K | 0 |
| Jan 19, 2024 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 8,933 | $3.48 | $31.0K | 0 |
| Jan 19, 2024 | OConnell Daniel Joseph | President and CEO | Sell | 15,200 | $3.47 | $52.8K | 0 |
| Jan 18, 2024 | Barton Russell | Chief Operating Officer | Sell | 2,833 | $3.73 | $10.6K | 0 |
| Jan 18, 2024 | Siemers Eric | Chief Medical Officer | Sell | 3,124 | $3.71 | $11.6K | 0 |
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