UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 (D) OF THE SECURITIES AND EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (D) OF THE SECURITIES AND EXCHANGE ACT OF 1934 For the transition period from _to MARATHON DIGITAL HOLDINGS, INC. (Exact Name of Registrant as Specified in Charter) | --- | --- | --- | --- | |--------------------------- ...