Marathon Digital Holdings, Inc. announced that effective November 21, 2022, John Lee was appointed Chief Accounting Officer of the Company. Mr. Lee is a CPA who brings to Marathon over 30 years of diversified accounting and finance experience including having served as: Vice President Corporate Controller at Wakefern Food Corporation (2022); Vice President Financial Operations and Financial Planning at AmeriGas Propane, Inc. (2016 2021); Senior Vice President - Controller /Shared Services (2012-1016), Senior Vice President CAO & Controller (2010-2012) and Vice President Corporate; Accounting (2001 2010) at Ascena Retail Group (Formerly Charming Shoppes, Inc.); and Senior Manager (as well as other positions of increasing responsibility) during his ten years in public accounting at Ernst and Young, LLP (1991-2001). Mr. Lee holds a CPA certification in the State of Pennsylvania and a bachelor of science in Commerce Engineering with a concentration in Accounting and Finance from Drexel University.

Also on November 21, 2022, Sim Salzman resigned as the Company's Chief Accounting Officer. Mr. Salzman will remain with the Company as VP Finance through April 1, 2023 to ensure a smooth transition and continued continuity in the Company's accounting and reporting processes through its year end closing. Mr. Salzman has chosen to leave the Company to pursue other interests effective April 1, 2023 in accordance with his employment agreement with the Company.