UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 Date of report: March 30, 2023 Commission File Number: 001-39387 Renalytix plc (Translation of registrant’s name into English) Finsgate 5-7 Cranwood Street London EC1V 9EE United Kingdom (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of ...