On May 15, 2024, Sandford D. Smith notified Cytokinetics, Incorporated of his resignation from the Board of Directors of the Company, with such resignation effective immediately before the 2024 annual meeting of stockholders of the Company held on May 15, 2024. Mr. Smith?s resignation was given in connection with his not being nominated for re-election at the Annual Meeting and was not due to any disagreement with the Company on any matter relating to the Company?s operations, policies or practices.