John Cox

CEO & President, Director, Dyne Therapeutics, Inc.

Bought, 12 months

$0.0M

Sold, 12 months

$0.4M

Companies

Latest trade

Sep 8, 2026

Companies

Dyne Therapeutics, Inc.CEO & President, Director −$0.4M

Trades

DYN Sold 5,658 shares at $18.88 · planned $0.1M Sep 8

DYN Sold 4,986 shares at $26.28 · planned $0.1M Aug 13

DYN Sold 2,683 shares at $18.33 · planned $0.0M Jun 16

DYN Sold 3,311 shares at $18.36 · planned $0.1M May 13

DYN Sold 2,732 shares at $14.90 · planned $0.0M Mar 5

DYN Sold 2,662 shares at $20.72 · planned $0.1M Dec 5

Open-market trades from SEC Form 4 only: no grants, option exercises or gifts. People are matched by the name on their filings, so two people with the same name share this page. For information only — not investment advice.