Cytokinetics to Hold Annual Meeting of Stockholders

Cytokinetics, Incorporated (Nasdaq: CYTK) today announced that its Annual Meeting of Stockholders will be held on Wednesday, May 15, 2024 at 10:00 AM Pacific Time at the Company’s headquarters, 350 Oyster Point Blvd., South San Francisco, CA. Immediately after the conclusion of the Annual Meeting of Stockholders, Robert I. Blum, President and Chief Executive Officer, is scheduled to present an overview of Cytokinetics’ performance.

Stockholders of record at the close of business on March 26, 2024 are entitled to vote at Cytokinetics’ Annual Meeting of Stockholders or to attend in person and submit questions to management. Stockholders wishing to vote must attend the meeting in person or submit a valid proxy card by mail, telephone or internet by 11:59 PM Eastern Time on May 14, 2024, in accordance with instructions contained in our Proxy Statement for the 2024 Annual Meeting of Stockholders.

Interested parties may access the live webcast of the Annual Meeting of Stockholders and the subsequent presentation at the following link: Cytokinetics Annual Meeting of Stockholders. An archived replay of the webcast will be available via Cytokinetics’ website for twelve months.

About Cytokinetics

Cytokinetics is a late-stage, specialty cardiovascular biopharmaceutical company focused on discovering, developing and commercializing first-in-class muscle activators and next-in-class muscle inhibitors as potential treatments for debilitating diseases in which cardiac muscle performance is compromised. As a leader in muscle biology and the mechanics of muscle performance, the company is developing small molecule drug candidates specifically engineered to impact myocardial muscle function and contractility. Cytokinetics is preparing for regulatory submissions for aficamten, its next-in-class cardiac myosin inhibitor, following positive results from SEQUOIA-HCM, the pivotal Phase 3 clinical trial in obstructive hypertrophic cardiomyopathy. Aficamten is also currently being evaluated in MAPLE-HCM, a Phase 3 clinical trial of aficamten as monotherapy compared to metoprolol as monotherapy in patients with obstructive HCM, ACACIA-HCM, a Phase 3 clinical trial of aficamten in patients with non-obstructive HCM, and FOREST-HCM, an open-label extension clinical study of aficamten in patients with HCM. Cytokinetics is also developing omecamtiv mecarbil, a cardiac muscle activator, in patients with heart failure. Additionally, Cytokinetics is developing CK-586, a cardiac myosin inhibitor with a mechanism of action distinct from aficamten for the potential treatment of HFpEF, and CK-136, a cardiac troponin activator for the potential treatment HFrEF and other types of heart failure, such as right ventricular failure resulting from impaired cardiac contractility.

For additional information about Cytokinetics, visit www.cytokinetics.com and follow us on X, LinkedIn, Facebook and YouTube.

Forward-Looking Statements

This press release contains forward-looking statements for purposes of the Private Securities Litigation Reform Act of 1995 (the "Act"). Cytokinetics disclaims any intent or obligation to update these forward-looking statements and claims the protection of the Act's Safe Harbor for forward-looking statements. Examples of such statements include, but are not limited to, statements relating to Cytokinetics' and its partners' research and development activities of Cytokinetics’ product candidates. Such statements are based on management's current expectations, but actual results may differ materially due to various risks and uncertainties, including, but not limited to the risks related to Cytokinetics' business outlined in Cytokinetics' filings with the Securities and Exchange Commission. Forward-looking statements are not guarantees of future performance, and Cytokinetics' actual results of operations, financial condition and liquidity, and the development of the industry in which it operates, may differ materially from the forward-looking statements contained in this press release. Any forward-looking statements that Cytokinetics makes in this press release speak only as of the date of this press release. Cytokinetics assumes no obligation to update its forward-looking statements whether as a result of new information, future events or otherwise, after the date of this press release.

CYTOKINETICS® and the CYTOKINETICS and C-shaped logo are registered trademarks of Cytokinetics in the U.S. and certain other countries.

Contact:Cytokinetics Diane WeiserSenior Vice President, Corporate Affairs(415) 290-7757