John Cox, CEO & President at Dyne Therapeutics, Inc. (DYN), sold 5,658 shares at $18.88 ($107K) on 2026-09-08, disclosed to the SEC on 2026-09-08.
Scheduled sale ($107k) by CEO & President under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Negative factors outweigh the positive ones.
| Filing → |
| DYN | SELL | 2026-05-14 | $61K | — | Filing → |
| DYN | SELL | 2026-03-06 | $41K | — | Filing → |
| DYN | SELL | 2025-12-05 | $110K | — | Filing → |