Cipher Mining Announces the Retirement of Edward Farrell, Chief Financial Officer, and the Appointment of Gregory Mumford as Successor

Core Viewpoint - Cipher Mining Inc. announced a transition in its Chief Financial Officer role, with Ed Farrell retiring and Greg Mumford appointed as the new CFO, effective October 14, 2025 [1][2]. Management Transition - Ed Farrell, the first CFO of Cipher, played a crucial role in the company's success over its first five years and in its public offering in 2021. He will continue as a Senior Advisor to support the transition and provide strategic guidance [2][3]. - Greg Mumford, with over a decade of experience in financial services and capital markets, will succeed Farrell as the second CFO. His background includes advising on M&A and capital markets transactions in the digital infrastructure sector [3][4]. Strategic Focus - The company is focused on developing and operating industrial-scale data centers for bitcoin mining and high-performance computing (HPC) hosting, aiming to be a market leader in innovation and growth in these sectors [5].