Insider · CIK 0001498428
John Cox
Files at: DYN, RGEN, BIVV, BIIB. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 8, 2026 SForm 4 → | Sep 8, 4:13 pm EDT | Dyne Therapeutics, Inc.DYN | 5,658 | $18.88 | $106,823 | 357,507 | −1.56% | 10b5-1 |
| Aug 13, 2026 SForm 4 → | Aug 17, 4:07 pm EDT | Dyne Therapeutics, Inc.DYN | 4,986 | $26.28 | $131,032 | 363,165 | −1.35% | 10b5-1 |
Reported trades — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.