MEISNER DEREK M

PrivateCIK: 1752461
Location

CAMBRIDGE, MA

Senior insider sale

Chief Legal Officer & Corp Sec at ACUMEN PHARMACEUTICALS, INC. — senior position signals high conviction

$213.5K

104.02K shares

What this filing means

MEISNER DEREK M plans to sell 104.02K shares of ACUMEN PHARMACEUTICALS, INC. valued at approximately $213.5K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderMEISNER DEREK MCIK 1752461
Officer· Chief Legal Officer & Corp Sec
Since Feb 2026
104.02K
Shares to sell
$213.5K
Approx. market value
2.67K
Acquired (3 months)
1
Planned
10 completed
Securities Acquired — Last 3 Months1
Sort

Exercise of employee stock options

Broker assisted cashless exercise

1/28/2026
2.67K
Total acquired2.67K
Planned & Completed Dispositions11
Sort

Completed

Completed

Units to sell

15.09K

Market value

$45.3K

1/26/2026
Completed

Units to sell

5.63K

Market value

$10.5K

1/23/2026
Completed

Units to sell

1.05K

Market value

$1.9K

1/22/2026
Completed

Units to sell

2.25K

Market value

$4.1K

1/21/2026
Completed

Units to sell

8.55K

Market value

$14.7K

1/12/2026
Completed

Units to sell

5.20K

Market value

$9.2K

1/9/2026
Completed

Units to sell

36.91K

Market value

$67.2K

1/8/2026
Completed

Units to sell

11.77K

Market value

$23.4K

1/7/2026
Completed

Units to sell

10.90K

Market value

$21.4K

1/6/2026
Completed

Units to sell

4K

Market value

$7.8K

1/5/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

2.67K

Market value

$8.0K

1/28/2026
Total

Units

104.02K

Value

$213.5K

MEISNER DEREK M — Planned Insider Sale (Form 144) | Finecho