KERR DOUGLAS

PrivateCIK: 1814189
Location

CAMBRIDGE, MA

Senior insider sale

Chief Medical Officer at DYNE THERAPEUTICS, INC. — senior position signals high conviction

$178.9K

7.44K shares

What this filing means

KERR DOUGLAS plans to sell 7.44K shares of DYNE THERAPEUTICS, INC. valued at approximately $178.9K. 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.

InsiderKERR DOUGLASCIK 1814189
IssuerDYNE THERAPEUTICS, INC.CIK 1818794
Officer· Chief Medical Officer
Since Mar 2026
7.44K
Shares to sell
$178.9K
Approx. market value
14.88K
Acquired (3 months)
1
Planned
2 completed
Securities Acquired — Last 3 Months2
Sort

Restricted Stock Units

Equity Compensation

9/4/2026
3K

Restricted Stock Units

Equity Compensation

9/3/2026
11.88K
Total acquired14.88K
Planned & Completed Dispositions3
Sort

Completed

Completed

Units to sell

1.56K

Market value

$40.9K

8/13/2026
Completed

Units to sell

887.00

Market value

$16.3K

6/16/2026

Planned — Approximate Date

NasdaqPlanned

Units to sell

5K

Market value

$121.7K

9/4/2026
Total

Units

7.44K

Value

$178.9K