HENDERSON JOHN T (CIK 1226488) reported 14 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-16). Recent activity: Buy CYTK (272 shares), Buy CYTK (2,851 shares), Buy CYTK (20,000 shares), Sell CYTK (20,000 shares), Buy CYTK (325 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-16 | CYTOKINETICS INC (CYTK) | Director | Buy | 272 | $22,473 |
| 2026-05-27 | CYTOKINETICS INC (CYTK) | Director | Buy | 2,851 | $0 |
| 2026-05-05 | CYTOKINETICS INC (CYTK) | Director | Buy | 20,000 | $152,200 |
| 2026-05-05 | CYTOKINETICS INC (CYTK) | Director | Sell | 20,000 | $1.5M |
| 2026-04-15 | CYTOKINETICS INC (CYTK) | Director | Buy | 325 | $21,245 |
| 2026-01-16 | CYTOKINETICS INC (CYTK) | Director | Buy | 334 | $21,189 |
| 2025-12-02 | CYTOKINETICS INC (CYTK) | Director | Buy | 8,750 | $87,500 |
| 2025-12-02 | CYTOKINETICS INC (CYTK) | Director | Sell | 8,750 | $559,125 |
| 2025-10-16 | CYTOKINETICS INC (CYTK) | Director | Buy | 338 | $21,226 |
| 2025-07-16 | CYTOKINETICS INC (CYTK) | Director | Buy | 559 | $21,248 |
| 2025-05-14 | CYTOKINETICS INC (CYTK) | Director | Buy | 7,333 | $0 |
| 2025-04-16 | CYTOKINETICS INC (CYTK) | Director | Buy | 551 | $21,247 |
| 2025-04-16 | CYTOKINETICS INC (CYTK) | Director | Buy | 20,000 | $124,200 |
| 2025-04-16 | CYTOKINETICS INC (CYTK) | Director | Sell | 3,190 | $123,325 |
Source: SEC Form 4 filings · as of 2026-07-16