John G. Cox's most recent trade in Dyne Therapeutics Inc was a trade of 2,683 Common Stock done at an average price of $18.3 . Disclosure was reported to the exchange on June 16, 2026.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Sale of securities on an exchange or to another person at price $ 18.33 per share. | 16 Jun 2026 | 2,683 | 368,151 | - | 18.3 | 49,179 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Sale of securities on an exchange or to another person at price $ 18.36 per share. | 13 May 2026 | 3,311 | 370,834 | - | 18.4 | 60,790 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Sale of securities on an exchange or to another person at price $ 14.90 per share. | 05 Mar 2026 | 2,732 | 374,145 | - | 14.9 | 40,707 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Sale of securities on an exchange or to another person at price $ 20.72 per share. | 05 Dec 2025 | 2,662 | 196,877 | - | 20.7 | 55,157 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Sale of securities on an exchange or to another person at price $ 13.41 per share. | 05 Sep 2025 | 2,640 | 199,539 | - | 13.4 | 35,402 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 16 Jul 2025 | 197,285 | 197,285 | - | - | Stock option (right to buy) | |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Purchase of securities on an exchange or from another person at price $ 9.11 per share. | 14 Jul 2025 | 100,000 | 242,179 | - | 9.1 | 911,000 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Gift of securities by or to the insider at price $ 0.00 per share. | 14 Jul 2025 | 10,000 | 202,179 | - | 0 | Common Stock | |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Gift of securities by or to the insider at price $ 0.00 per share. | 14 Jul 2025 | 10,000 | 212,179 | - | 0 | Common Stock | |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Gift of securities by or to the insider at price $ 0.00 per share. | 14 Jul 2025 | 10,000 | 222,179 | - | 0 | Common Stock | |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Gift of securities by or to the insider at price $ 0.00 per share. | 14 Jul 2025 | 10,000 | 232,179 | - | 0 | Common Stock | |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Sale of securities on an exchange or to another person at price $ 13.35 per share. | 05 Jun 2025 | 4,060 | 142,179 | - | 13.4 | 54,201 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Sale of securities on an exchange or to another person at price $ 11.83 per share. | 05 Mar 2025 | 4,061 | 146,239 | - | 11.8 | 48,042 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 04 Dec 2024 | 232,100 | 232,100 | - | - | Stock option (right to buy) | |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 04 Dec 2024 | 145,300 | 150,300 | - | 0 | Common Stock | |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Purchase of securities on an exchange or from another person at price $ 33.09 per share. | 04 Sep 2024 | 7,200 | 8,000 | - | 33.1 | 238,248 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Purchase of securities on an exchange or from another person at price $ 33.09 per share. | 04 Sep 2024 | 7,200 | 8,000 | - | 33.1 | 238,248 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Purchase of securities on an exchange or from another person at price $ 33.09 per share. | 04 Sep 2024 | 7,200 | 8,000 | - | 33.1 | 238,248 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Purchase of securities on an exchange or from another person at price $ 33.09 per share. | 04 Sep 2024 | 7,200 | 8,000 | - | 33.1 | 238,248 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Purchase of securities on an exchange or from another person at price $ 32.57 per share. | 04 Sep 2024 | 800 | 800 | - | 32.6 | 26,056 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Purchase of securities on an exchange or from another person at price $ 32.57 per share. | 04 Sep 2024 | 800 | 800 | - | 32.6 | 26,056 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Purchase of securities on an exchange or from another person at price $ 32.57 per share. | 04 Sep 2024 | 800 | 800 | - | 32.6 | 26,056 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, CEO & President | Purchase of securities on an exchange or from another person at price $ 32.57 per share. | 04 Sep 2024 | 800 | 800 | - | 32.6 | 26,056 | Common Stock |
| Dyne Therapeutics Inc | John G. Cox | Director, See Remarks | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 25 Mar 2024 | 679,853 | 679,853 | - | - | Stock Option (Right to Buy) |