| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| HENDERSON JOHN T | Director | 350 OYSTER POINT BLVD, SOUTH SAN FRANCISCO | /s/ John O. Faurescu, attorney-in-fact for Dr. Henderson | 16 Oct 2025 | 0001226488 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CYTK | Common Stock | Award | $21,226 | +338 | +0.46% | $62.80 | 74,578 | 15 Oct 2025 | Direct | F1 |
| holding | CYTK | Common Stock | 83 | 15 Oct 2025 | by Spouse |
| Id | Content |
|---|---|
| F1 | Director equity in lieu of cash retainer program. |