Robert Arthur Harrington is Director at CYTOKINETICS INC (CYTK). They have made 5 open-market trades across 1 company since 2024, most recently 2026-07-15.
CIK 0001923988
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CYTK | 21,932 | $1.4M |
Shares reported on the most recent Form 4, priced at the 2026-07-16 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CYTK | SELL · 10b5-1 | 2025-12-01 | 2025-12-02 | $66.80 | $144K | -0.5% | -3.1% | -3.5% |
| CYTK | SELL | 2025-09-02 | 2025-09-02 | $48.67 | $209K | +2.5% | +12.9% | +32.4% |
| CYTK | SELL | 2025-04-03 | 2025-04-04 | $39.43 | $18K | +10.9% | +3.9% | -1.8% |
| CYTK | SELL | 2025-03-04 | 2025-03-04 | $42.50 | $38K | +1.9% | -6.9% | -28.3% |
| CYTK | SELL | 2024-07-05 | 2024-07-08 | $54.61 | $14K | -0.6% | -8.9% | -1.4% |
| CYTK | SELL | 2024-06-03 | 2024-06-05 | $48.64 | $154K | -2.7% | +2.3% | +0.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.