0001061983 2026-08-13 2026-08-13 false 0001061983 8-K 2026-08-13 Cytokinetics, Incorporated DE 000-50633 94-3291317 350 Oyster Point Boulevard South San Francisco CA 94080 (650) 624-3000 N/A false false false false Common Stock, $0.001 par value CYTK NASDAQ false