KERR DOUGLAS

PrivateCIK: 1814189
Location

CAMBRIDGE, MA

Senior insider sale

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

$149.0K

6.22K shares

What this filing means

KERR DOUGLAS plans to sell 6.22K shares of DYNE THERAPEUTICS, INC. valued at approximately $149.0K. 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
6.22K
Shares to sell
$149.0K
Approx. market value
3K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months1
Sort

Restricted Stock Units

Equity Compensation

9/4/2026
3K
Total acquired3K
Planned & Completed Dispositions4
Sort

Completed

Completed

Units to sell

3.75K

Market value

$91.2K

9/4/2026
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

35.00

Market value

$661.00

9/8/2026
Total

Units

6.22K

Value

$149.0K