8 insiders reported 147 Form 4 transactions for Dyne Therapeutics, Inc. (DYN) over the past 18 months (most recent 2026-09-08). Recent activity: Kerr Douglas (Chief Medical Officer) Sell 3,745 shares, Cox John (CEO & President) Sell 5,658 shares, Friedl-Naderer Johanna (Chief Commercial Officer) Sell 900 shares, Kerr Douglas (Chief Medical Officer) Sell 1,290 shares, Friedl-Naderer Johanna (Chief Commercial Officer) Sell 185 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-08 | Kerr Douglas | Chief Medical Officer | Sell | 3,745 | $91,191 |
| 2026-09-08 | Cox John | CEO & President | Sell | 5,658 | $106,823 |
| 2026-09-08 | Friedl-Naderer Johanna | Chief Commercial Officer | Sell | 900 | $21,915 |
| 2026-09-08 | Kerr Douglas | Chief Medical Officer | Sell | 1,290 | $24,355 |
| 2026-09-08 | Friedl-Naderer Johanna | Chief Commercial Officer | Sell | 185 | $3,493 |
| 2026-08-17 | Rhodes Jason P | Director | Sell | 1.4M | $34.0M |
| 2026-08-17 | Rhodes Jason P | Director | Sell | 268,354 | $7.0M |
| 2026-08-17 | Lucera Erick | Chief Financial Officer | Sell | 1,797 | $47,225 |
| 2026-08-17 | Kerr Douglas | Chief Medical Officer | Sell | 1,556 | $40,892 |
| 2026-08-17 | Friedl-Naderer Johanna | Chief Commercial Officer | Sell | 226 | $5,939 |
| 2026-08-17 | Rhodes Jason P | Director | Sell | 94,415 | $2.5M |
| 2026-08-17 | Rhodes Jason P | Director | Sell | 63,643 | $1.7M |
| 2026-08-17 | Cox John | CEO & President | Sell | 4,986 | $131,032 |
| 2026-08-17 | Rhodes Jason P | Director | Sell | 322,465 | $8.1M |
| 2026-08-17 | Rhodes Jason P | Director | Sell | 478,377 | $12.0M |
| 2026-07-29 | Kersten Dirk | Director | Sell | 256,072 | $6.5M |
| 2026-07-29 | Kersten Dirk | Director | Sell | 5,388 | $140,319 |
| 2026-07-08 | Rhodes Jason P | Director | Sell | 49,193 | $1.1M |
| 2026-07-08 | Rhodes Jason P | Director | Sell | 253,039 | $5.8M |
| 2026-07-08 | Rhodes Jason P | Director | Sell | 127,182 | $2.9M |
| 2026-07-08 | Rhodes Jason P | Director | Sell | 100,019 | $2.3M |
| 2026-07-08 | Rhodes Jason P | Director | Sell | 124,379 | $2.9M |
| 2026-07-08 | Rhodes Jason P | Director | Sell | 29,587 | $698,845 |
| 2026-07-08 | Rhodes Jason P | Director | Sell | 62,543 | $1.4M |
| 2026-07-08 | Rhodes Jason P | Director | Sell | 14,844 | $350,615 |
Source: SEC Form 4 filings · as of 2026-09-08