Form 4 for DYN Dyne Therapeutics, Inc.
Accepted 2025-09-09 00:00:00 ET · period of report 2025-09-05 · accession 0001498428-25-000003 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2025-09-09 | 2025-09-05 | DYN | Cox John | CEO, Pres, Dir | S - Sale | $13.41 | -2,640 | 199.5K | -1% | -$35.4K |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-09-05 | S | D | 2,640 | $13.41 | 199,539 | D | — | — | (F3) Includes 118,057 unvested RSUs. |