SEC Form 4 · accession 0001291963-26-000008
Dyne Therapeutics, Inc. · DYN
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Barry E Greene
Director
Period of report
Jun 22, 2026
Accepted (ET)
Jun 23, 2026 · 4:07 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001818794
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock option (right to buy)F1 | $20.87 | Jun 22, 2026 | A | 57,463 | A | — | Jun 21, 2036 | Common Stock | 57,463 | 57,463 | D |
Explanation of responses
- F1The option was granted on June 22, 2026. The shares underlying the option are scheduled to vest over three years in equal monthly installments through June 22, 2029.