John Cox
Director, CEO & President · 6 filings · Latest: Sep 8, 2026
Dyne Therapeutics, Inc.
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|
DYN | Cox John | — | Sep 8, 2026 | Proposed Sale | $18.88 | 5,658 | $106.8K | — | |
DYN | John Cox | Director, CEO & President | Sep 8, 2026 | Sale | $18.88 | 5,658 | $106.8K | 357,507 | |
DYN | John Cox | Director, CEO & President | Aug 13, 2026 | Sale | $26.28 | 4,986 | $131.0K | 363,165 | |
DYN | Cox John | — | Aug 13, 2026 | Proposed Sale | $26.28 | 4,986 | $131.0K | — | |
DYN | John Cox | Director, CEO & President | Jun 16, 2026 | Sale | $18.33 | 2,683 | $49.2K | 368,151 | |
DYN | Cox John | — | Jun 16, 2026 | Proposed Sale | $18.33 | 2,683 | $49.2K | — | |
DYN | John Cox | Director, CEO & President | May 13, 2026 | Sale | $18.36 | 3,311 | $60.8K | 370,834 | |
DYN | Cox John | — | May 13, 2026 | Proposed Sale | $18.36 | 3,311 | $60.8K | — | |
DYN | John Cox | Director, CEO & President | Mar 5, 2026 | Sale | $14.90 | 2,732 | $40.7K | 374,145 | |
DYN | Cox John | — | Mar 5, 2026 | Proposed Sale | $14.90 | 2,732 | $40.7K | — | |
DYN | Cox John | — | Dec 5, 2025 | Proposed Sale | $20.72 | 2,662 | $55.1K | — | |
DYN | Cox John | — | Sep 5, 2025 | Proposed Sale | $13.41 | 2,640 | $35.4K | — | |
DYN | Cox John | — | Jun 5, 2025 | Proposed Sale | $13.35 | 4,060 | $54.2K | — | |
DYN | Cox John | — | Mar 5, 2025 | Proposed Sale | $11.89 | 4,067 | $48.4K | — |