Insider Transactions in Q1 2026 at Acumen Pharmaceuticals, Inc. (ABOS)
Insider Transaction List (Q1 2026)
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Jan 12
2026
|
Daniel Joseph O Connell Chief Executive Officer |
SELL
Open market or private sale
|
Direct |
5,388
-0.9%
|
$5,388
$1.73 P/Share
|
|
Jan 12
2026
|
Derek M Meisner Chief Legal Officer & Corp Sec |
SELL
Open market or private sale
|
Direct |
8,548
-9.26%
|
$8,548
$1.71 P/Share
|
|
Jan 09
2026
|
Daniel Joseph O Connell Chief Executive Officer |
SELL
Open market or private sale
|
Direct |
12,941
-2.12%
|
$12,941
$1.76 P/Share
|
|
Jan 09
2026
|
Derek M Meisner Chief Legal Officer & Corp Sec |
SELL
Open market or private sale
|
Direct |
5,200
-5.33%
|
$5,200
$1.76 P/Share
|
|
Jan 08
2026
|
Daniel Joseph O Connell Chief Executive Officer |
SELL
Open market or private sale
|
Direct |
8,143
-1.31%
|
$8,143
$1.82 P/Share
|
|
Jan 08
2026
|
Derek M Meisner Chief Legal Officer & Corp Sec |
SELL
Open market or private sale
|
Direct |
36,911
-14.32%
|
$36,911
$1.82 P/Share
|
|
Jan 08
2026
|
Russell Barton Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
3,530
-2.78%
|
$3,530
$1.86 P/Share
|
|
Jan 08
2026
|
Matt Zuga CFO & Chief Business Officer |
SELL
Open market or private sale
|
Direct |
6,888
-3.18%
|
$6,888
$1.82 P/Share
|
|
Jan 08
2026
|
James J. Doherty President and CDO |
SELL
Open market or private sale
|
Direct |
6,467
-10.69%
|
$6,467
$1.82 P/Share
|
|
Jan 07
2026
|
Amy Schacterle Chief Regulatory Officer |
SELL
Open market or private sale
|
Direct |
1,097
-12.47%
|
$1,097
$1.98 P/Share
|
|
Jan 07
2026
|
James J. Doherty President and CDO |
SELL
Open market or private sale
|
Direct |
1,700
-2.73%
|
$1,700
$1.99 P/Share
|
|
Jan 07
2026
|
Russell Barton Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
1,700
-1.32%
|
$1,700
$1.99 P/Share
|
|
Jan 07
2026
|
Derek M Meisner Chief Legal Officer & Corp Sec |
SELL
Open market or private sale
|
Direct |
11,770
-4.07%
|
$11,770
$1.99 P/Share
|
|
Jan 07
2026
|
Daniel Joseph O Connell Chief Executive Officer |
SELL
Open market or private sale
|
Direct |
37,755
-5.74%
|
$37,755
$1.99 P/Share
|
|
Jan 07
2026
|
Matt Zuga CFO & Chief Business Officer |
SELL
Open market or private sale
|
Direct |
5,805
-1.31%
|
$5,805
$2.0 P/Share
|
|
Jan 06
2026
|
Russell Barton Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
3,618
-2.74%
|
$3,618
$1.97 P/Share
|
|
Jan 06
2026
|
Derek M Meisner Chief Legal Officer & Corp Sec |
SELL
Open market or private sale
|
Direct |
10,898
-3.53%
|
$10,898
$1.97 P/Share
|
|
Jan 06
2026
|
Daniel Joseph O Connell Chief Executive Officer |
SELL
Open market or private sale
|
Direct |
5,102
-0.77%
|
$5,102
$1.97 P/Share
|
|
Jan 06
2026
|
Eric Siemers Chief Medical Officer |
SELL
Open market or private sale
|
Direct |
6,834
-4.11%
|
$6,834
$1.97 P/Share
|
|
Jan 06
2026
|
Matt Zuga CFO & Chief Business Officer |
SELL
Open market or private sale
|
Direct |
5,100
-2.24%
|
$5,100
$1.97 P/Share
|
|
Jan 05
2026
|
Russell Barton Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
4,000
-2.94%
|
$4,000
$1.96 P/Share
|
|
Jan 05
2026
|
Derek M Meisner Chief Legal Officer & Corp Sec |
SELL
Open market or private sale
|
Direct |
4,000
-2.48%
|
$4,000
$1.96 P/Share
|
|
Jan 05
2026
|
Daniel Joseph O Connell Chief Executive Officer |
SELL
Open market or private sale
|
Direct |
4,649
-0.7%
|
$4,649
$1.97 P/Share
|
|
Jan 05
2026
|
Eric Siemers Chief Medical Officer |
SELL
Open market or private sale
|
Direct |
4,000
-2.35%
|
$4,000
$1.96 P/Share
|
|
Jan 05
2026
|
Matt Zuga CFO & Chief Business Officer |
SELL
Open market or private sale
|
Direct |
4,000
-1.73%
|
$4,000
$1.96 P/Share
|