Robert I. Blum serves as Executive at CYTOKINETICS INC, where they oversee executive responsibilities. Since joining the company, Robert I. Blum has executed 533 insider transactions totaling $38.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 22, 2025 involved exercising options for 16,506 shares valued at $110.1K.
Robert I. Blum currently holds 391,009 shares of CYTOKINETICS INC (CYTK), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Robert I. Blum has been a net seller of CYTK stock. They have purchased $77.5K and sold $37.9M worth of shares.
Robert I. Blum's most recent insider trade was on Dec 22, 2025, when they sold 16,506 shares at $6.67 per share.
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| 54,727 |
| $6.67 |
| Discretionary |
| Dec 22, 2025 | CYTK | $2.1M | Payment | 30,426 | $68.18 | Discretionary |
| Dec 22, 2025 | CYTK | $0 | Award | 5,765 | $N/A | Discretionary |
| Dec 22, 2025 | CYTK | $184.1K | Payment | 2,935 | $62.72 | Discretionary |
| Dec 22, 2025 | CYTK | $0 | Award | 5,765 | $N/A | Discretionary |
| Dec 3, 2025 | CYTK | $385.6K | Payment | 5,930 | $65.02 | Discretionary |
| Nov 5, 2025 | CYTK | $0 | Gift | 2,000 | $N/A | Discretionary |
| Oct 30, 2025 | CYTK | $314.3K | Sale | 5,000 | $62.86 | Discretionary |
| Oct 16, 2025 | CYTK | $300.1K | Sale | 5,000 | $60.03 | Discretionary |
| Oct 1, 2025 | CYTK | $275.3K | Sale | 5,000 | $55.05 | Discretionary |
| Sep 15, 2025 | CYTK | $248.8K | Sale | 5,000 | $49.77 | Discretionary |
| Sep 2, 2025 | CYTK | $243.8K | Sale | 5,000 | $48.76 | Discretionary |
| Aug 15, 2025 | CYTK | $192.1K | Sale | 5,000 | $38.42 | Discretionary |
| Jul 29, 2025 | CYTK | $182.3K | Sale | 5,000 | $36.45 | Discretionary |
| Jul 14, 2025 | CYTK | $190.8K | Sale | 5,000 | $38.15 | Discretionary |
| Jul 1, 2025 | CYTK | $167.8K | Sale | 5,000 | $33.55 | Discretionary |
| Sep 30, 2024 | CYTK | $33.4K | Option Exercise | 5,000 | $6.67 | Planned |
| Sep 30, 2024 | CYTK | $260.7K | Sale | 5,000 | $52.14 | Planned |
| Sep 16, 2024 | CYTK | $279.9K | Sale | 5,000 | $55.99 | Planned |
| Sep 16, 2024 | CYTK | $33.4K | Option Exercise | 5,000 | $6.67 | Planned |
| Sep 3, 2024 | CYTK | $285.1K | Sale | 5,000 | $57.03 | Planned |
| Sep 3, 2024 | CYTK | $33.4K | Option Exercise | 5,000 | $6.67 | Planned |
| Aug 19, 2024 | CYTK | $0 | Gift | 1,956 | $N/A | Discretionary |
| Aug 12, 2024 | CYTK | $76.7K | Option Exercise | 11,500 | $6.67 | Planned |
| Aug 12, 2024 | CYTK | $634.5K | Sale | 11,500 | $55.17 | Planned |
| Jul 30, 2024 | CYTK | $684.1K | Sale | 11,500 | $59.49 | Planned |
| Jul 30, 2024 | CYTK | $76.7K | Option Exercise | 11,500 | $6.67 | Planned |
| Jul 10, 2024 | CYTK | $38.5K | Option Exercise | 5,767 | $6.67 | Planned |
| Jul 10, 2024 | CYTK | $624.3K | Sale | 11,500 | $54.29 | Planned |