| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| WIERENGA WENDELL | Director | 350 OYSTER POINT BLVD, SOUTH SAN FRANCISCO | /s/ John O. Faurescu, attorney-in-fact for Dr. Wierenga | 21 Oct 2025 | 0001239956 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CYTK | Common Stock | Award | $6,217 | +99 | +0.31% | $62.80 | 32,444 | 15 Oct 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Director equity in lieu of cash retainer program. |