Updated Jul 16, 2026
Blum Robert I has filed 6 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $10.85M.

Robert I. Blum is the President and CEO of Cytokinetics Inc, a biopharmaceutical company specializing in muscle-related therapies. He has played a significant role in advancing the company's focus on developing treatments for conditions such as amyotrophic lateral sclerosis and heart failure.
| Role | President & CEO, Director |
|---|---|
| Notability | 50/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-14 | CYTK | CYTOKINETICS INC | S — Open-market sale [10b5-1] | 7.5K | $82.02 | $614K |
| 2026-07-14 | CYTK | CYTOKINETICS INC | M — Option exercise [10b5-1] | 7.5K | $10.60 | $79K |
| 2026-07-14 | CYTK | CYTOKINETICS INC | S — Open-market sale [10b5-1] | 10 | $82.02 | $820 |
| 2026-07-02 | CYTK | CYTOKINETICS INC | S — Open-market sale | 7.5K | $84.92 | $637K |
| 2026-06-15 | CYTK | CYTOKINETICS INC | S — Open-market sale | 7.5K | $70.46 | $528K |
| 2026-05-28 | CYTK | CYTOKINETICS INC | S — Open-market sale | 7.5K | $77.21 | $579K |
| 2026-05-14 | CYTK | CYTOKINETICS INC | S — Open-market sale | 7.5K | $77.92 | $584K |
| 2026-04-29 | CYTK | CYTOKINETICS INC | S — Open-market sale | 7.5K | $59.62 | $447K |
| 2026-04-15 | CYTK | CYTOKINETICS INC | S — Open-market sale | 7.5K | $65.38 | $490K |
| 2026-04-01 | CYTK | CYTOKINETICS INC | S — Open-market sale | 7.5K | $66.63 | $500K |
| 2026-03-18 | CYTK | CYTOKINETICS INC | S — Open-market sale | 23.9K | $62.15 | $1.49M |
| 2026-03-18 | CYTK | CYTOKINETICS INC | S — Open-market sale | 12.7K | $62.15 | $788K |
| 2026-03-17 | CYTK | CYTOKINETICS INC | A — Grant or award | 75.3K | $0.00 | |
| 2026-03-10 | CYTK | CYTOKINETICS INC | S — Open-market sale | 7.9K | $60.72 | $482K |
| 2025-12-29 | CYTK | CYTOKINETICS INC | F — Tax withholding / forfeiture | 2.9K | $62.72 | $184K |
| 2025-12-29 | CYTK | CYTOKINETICS INC | A — Grant or award | 5.8K | $0.00 | |
| 2025-12-29 | CYTK | CYTOKINETICS INC | A — Grant or award | 5.8K | $0.00 | |
| 2025-12-23 | CYTK | CYTOKINETICS INC | M — Option exercise | 16.5K | $6.67 | $110K |
| 2025-12-23 | CYTK | CYTOKINETICS INC | F — Tax withholding / forfeiture | 30.4K | $68.18 | $2.07M |
| 2025-12-23 | CYTK | CYTOKINETICS INC | M — Option exercise | 54.7K | $6.67 | $365K |
Robert I. Blum is the President and CEO of Cytokinetics Inc, a biopharmaceutical company specializing in muscle-related therapies. He has played a significant role in advancing the company's focus on developing treatments for conditions such as amyotrophic lateral sclerosis and heart failure.…
6 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 29 open-market sales ($10.85M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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