Blum Robert I (CIK 1288859) reported 46 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-10). Recent activity: Buy CYTK (7,500 shares), Sell CYTK (7,500 shares), Buy CYTK (7,500 shares), Sell CYTK (7,500 shares), Sell CYTK (10 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-10 | CYTOKINETICS INC (CYTK) | President & CEO | Buy | 7,500 | $79,500 |
| 2026-08-10 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 7,500 | $575,700 |
| 2026-07-27 | CYTOKINETICS INC (CYTK) | President & CEO | Buy | 7,500 | $79,500 |
| 2026-07-27 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 7,500 | $606,525 |
| 2026-07-14 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 10 | $820 |
| 2026-07-14 | CYTOKINETICS INC (CYTK) | President & CEO | Buy | 7,490 | $79,394 |
| 2026-07-14 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 7,490 | $614,330 |
| 2026-07-02 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 7,500 | $636,900 |
| 2026-06-15 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 7,500 | $528,450 |
| 2026-05-28 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 7,500 | $579,075 |
| 2026-05-14 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 7,500 | $584,400 |
| 2026-04-29 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 7,500 | $447,150 |
| 2026-04-15 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 7,500 | $490,350 |
| 2026-03-18 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 12,673 | $787,627 |
| 2026-03-18 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 23,928 | $1.5M |
| 2026-03-17 | CYTOKINETICS INC (CYTK) | President & CEO | Buy | 75,258 | $0 |
| 2026-03-10 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 7,931 | $481,570 |
| 2025-12-29 | CYTOKINETICS INC (CYTK) | President & CEO | Buy | 5,765 | $0 |
| 2025-12-29 | CYTOKINETICS INC (CYTK) | President & CEO | Buy | 5,765 | $0 |
| 2025-12-29 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 2,935 | $184,083 |
| 2025-12-23 | CYTOKINETICS INC (CYTK) | President & CEO | Buy | 54,727 | $365,029 |
| 2025-12-23 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 30,426 | $2.1M |
| 2025-12-23 | CYTOKINETICS INC (CYTK) | President & CEO | Buy | 16,506 | $110,095 |
| 2025-12-05 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 5,930 | $385,569 |
| 2025-11-05 | CYTOKINETICS INC (CYTK) | President & CEO | Sell | 2,000 | $0 |
Source: SEC Form 4 filings · as of 2026-08-10