Robert Arthur Harrington serves as Executive at CYTOKINETICS INC, where they oversee executive responsibilities. Since joining the company, Robert Arthur Harrington has executed 15 insider transactions totaling $338.9K, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 1, 2025 involved selling 2,150 shares valued at $143.6K.
Robert Arthur Harrington currently holds 18,542 shares of CYTOKINETICS INC (CYTK), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Robert Arthur Harrington has been a net seller of CYTK stock. They have purchased $0 and sold $338.9K worth of shares.
Robert Arthur Harrington's most recent insider trade was on Dec 1, 2025, when they sold 2,150 shares at $66.80 per share.
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| $62.80 |
| Discretionary |
| Sep 2, 2025 | CYTK | $104.6K | Sale | 2,150 | $48.67 | Discretionary |
| Jul 15, 2025 | CYTK | $12.5K | Award | 328 | $38.01 | Discretionary |
| Jul 5, 2024 | CYTK | $13.8K | Sale | 253 | $54.61 | Planned |
| Jul 1, 2024 | CYTK | $0 | Award | 228 | $N/A | Planned |
| Jun 3, 2024 | CYTK | $76.9K | Sale | 1,580 | $48.64 | Planned |
| May 15, 2024 | CYTK | $0 | Award | 5,600 | $N/A | Discretionary |
| Jan 2, 2024 | CYTK | $12.4K | Award | 148 | $84.12 | Discretionary |
| Oct 2, 2023 | CYTK | $12.5K | Award | 448 | $27.88 | Discretionary |
| Jul 3, 2023 | CYTK | $12.5K | Award | 374 | $33.36 | Discretionary |
| May 10, 2023 | CYTK | $0 | Award | 5,000 | $N/A | Discretionary |
| Apr 3, 2023 | CYTK | $11.2K | Award | 298 | $37.71 | Discretionary |
| Jan 3, 2023 | CYTK | $11.2K | Award | 253 | $44.35 | Discretionary |
| May 10, 2022 | CYTK | $0 | Award | 5,000 | $N/A | Discretionary |