Item 9.01 Financial Statements and Exhibits (d) Exhibits. Exhibit No. Description 99.1 Press release issued by iRhythm Holdings, Inc., dated as of April 30, 2026 ──────────────────────────────────────────────────────────────────────────────────────────────── 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. IRHYTHM HOLDINGS, INC. By: /s/ Daniel Wilson Daniel Wilson Chief Financial Officer