• Cytokinetics EVP, Chief Financial Officer Lee Sung reported option exercises on June 29, 2026, acquiring 3,134 common shares at USD 44.36-48.51.
• He also sold 3,134 common shares the same day at USD 85.
• He reported 63,221 Cytokinetics common shares owned following the transactions.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Cytokinetics Incorporated published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001061983-26-000070), on June 29, 2026, and is solely responsible for the information contained therein.