X0306 4 2022-02-15 0 0001507605 MARATHON DIGITAL HOLDINGS, INC. MARA 0001834571 Salzman Simeon C/O MARATHON DIGITAL HOLDINGS, INC. 1180 N. TOWN CENTER DRIVE, SUITE 100 LAS VEGAS, NV 89144 0 1 0 0 CHIEF FINANCIAL OFFICER Common Stock 2022-02-15 4 C 0 10000 25.55 A 84366 D RSUs 0 2022-02-15 4 A 0 10000 25.55 A Common 10000 10000 D RSUs 0 2022-02-15 4 D 0 10000 25.55 D Common 10000 0 D Vested restricted stock units ("RSUs") granted under the Marathon Patent Group, Inc. 2018 Equity Incentive Plan (the "Plan") convert into shares of the Issuer's Common Stock on a one-for- one basis upon settlement by the Issuer in accordance with the procedures of the Plan. On the date in column 3, in connection with the Reporting Person's service as a director of the Corporation, the Reporting Person was granted an award as stated in those rows denoted as "A" in column 4, which immediately vested in those rows denoted as "D" in column 4. Represents the total direct and indirect beneficial ownership of the security held by the Reporting Person Immediate vesting. Amount in column (4) is net shares sold for tax purposes. /s/ Simeon Salzman 2022-03-04