赛弗数字 CIFR

Tyler Page has served as Cipher's Chief Executive Officer and as a member of the Board since founding the company in 2021. He oversees all aspects of the business and brings more than 25 years of experience in data centers, institutional finance and fintech. Previously, he served in senior roles in New York and London at NYDIG, Stone Ridge Asset Management, Guggenheim Partners, Goldman Sachs and Lehman Brothers. He began his career as an attorney at Davis Polk & Wardwell LLP. He holds a J.D. from the University of Michigan Law School and a B.A. from the University of Virginia.

Gregory Mumford has served as Cipher's Chief Financial Officer since October 2025. Prior to Cipher, from December 2019 to September 2025, Mr. Mumford held several senior positions at Keefe, Bruyette & Woods (KBW), including Director and a leader in the Digital Assets & Infrastructure group in Keefe, Bruyette & Woods' Investment Banking division. Mr. Mumford has over a decade of experience in financial services, credit, and capital markets. During his tenure at KBW and its affiliated entities, he advised on a broad range of M&A and capital markets activity with a focus on digital infrastructure and industrials. Prior to joining KBW, Mr. Mumford held various roles at one of Canada's largest banks in their commercial and corporate banking group. He received his Bachelor of Commerce from McMaster University and is a CFA Charterholder.

William Iwaschuk has served as Cipher's Chief Legal Officer since August 2021, as Corporate Secretary since May 2022 and as Co-President since March 2023. Prior to Cipher, from 2014 to 2020, Mr. Iwaschuk held senior positions at Tower Research Capital LLC, including serving as General Counsel and Secretary (2016-2020) and Counsel (2014-2016). From 2013 to 2014, Mr. Iwaschuk was a Partner in the Investment Management Group of Morgan, Lewis & Bockius LLP in New York. Mr. Iwaschuk also previously served as a Vice-President in the legal department at Goldman Sachs & Co. from 2005 until 2012. He started his career as an equity derivatives associate at Davis Polk & Wardwell LLP in New York. Mr. Iwaschuk received his LL.B. and B.A. degrees from The University of British Columbia.

James Newsome has served as a member of our board of directors since August 2021. Mr. Newsome served on the advisory board of Bitfury Top HoldCo from 2015 until 2021. Mr. Newsome served as president of the New York Mercantile Exchange from August of 2004 until it was acquired by the CME Group in 2009. He subsequently served on the board of CME Group from 2009 until 2011. Mr. Newsome has also previously served on the board of directors of the Dubai Mercantile Exchange and is a former director of the National Futures Association. From 1998 until 2004, Mr. Newsome held various senior roles at the U.S. Commodity Futures Trading Commission (CFTC) from Commissioner (1998 to 2000) to a Chairman of CFTC (2000 to 2004). As a Chairman of CFTC, Mr. Newsome guided the regulation of the nation's futures markets and led the CFTC's regulatory implementation of the Commodity Futures Modernization Act of 2000. He also served as one of four members of the President's Working Group for Financial Markets, along with the Secretary of the Treasury and the Chairmen of the Federal Reserve and the Securities and Exchange Commission (SEC). Mr. Newsome is also presently a founding partner of Delta Strategy Group, a full-service government affairs firm based in Washington, D.C. He earned a B.S. in Economics from the University of Florida, a Masters in Genetics from Mississippi State University and a Ph.D. in Economics from Mississippi State University.

Robert Flatley has served on our board of directors since August 2023. Since 2021, Mr. Flatley has served as a director, the Chief Executive Officer and founder of TS Imagine, which was formed following the merger of Trading Screen and Imagine Software. From 2018 to 2019, Mr. Flatley served as a director and as President, Chief Financial Officer and Chief Operating Officer at New York Digital Investment Group (NYDIG). From 2010 to 2018, he served as a director and Chief Executive Officer of CoreOne Technologies. Earlier in his career, Mr. Flatley was a Managing Director at both Deutsche Bank Securities, and at Banc of America Securities. He has hands-on experience in various capital markets roles, including trading, securities and prime finance, building SaaS business models, market structure, quantitative trading, software development, and software M&A. He founded successful companies as a technology entrepreneur using both software and data-as-a-service models, and he was a founding employee of two statistically driven trading businesses at bulge bracket financial institutions. He earned a B.B.A. in Accounting from the University of Iowa in 1985.

Cary Grossman has served as a member of our board of directors since August 2021. Mr. Grossman co-founded GWAC in 2020 and served as its President and a member of its board of directors from June 2020 through August 2021. Mr. Grossman also served as CEO, President, Chief Financial Officer and a member of the board of directors of Good Works II Acquisition Corp. during the period from February 2021 through February 2023. From 2010 to 2025, Mr. Grossman was the principal of Shoreline Capital Advisors, Inc., an advisory firm focused on providing financial advisory services to middle-market companies. Prior to Shoreline Capital Advisors, from 1991 to 2002, Mr. Grossman co-founded and was the CEO of another investment banking firm, McFarland, Grossman & Company. Earlier in his career, he practiced public accounting for 15 years. Mr. Grossman also held a number of executive positions, including: President of XFit, Inc. from 2019 to 2020; Chief Financial Officer of Blaze Metals, LLC from 2007 to 2010; Executive Vice President, Chief Financial Officer and Chief Operating Officer of Gentium, S.P.A. from 2004 to 2006; Chief Executive Officer of ERP Environmental Services, Inc. and Chief Financial Officer of U.S. Liquids, Inc. from 2001 to 2003. He also co-founded Pentacon, Inc. (NYSE: JIT) and served as a board member and Executive Chairman from 1998 until 2002, and as a director of Metalico (NYSE: MEA) from 2014 until 2015 and INX Inc. (Nasdaq: INXI) from 2004 until 2011. Mr. Grossman is a Certified Public Accountant and earned a B.B.A. in Business Administration from the University of Texas.

Caitlin Long has served as a member of our board of directors since August 2021. Ms. Long has extensive experience in both traditional financial services and cryptocurrencies. She is the Founder and Chief Executive Officer of Custodia Bank, Inc. (formerly Avanti Financial Group, Inc.), a chartered bank that she founded in 2020 to serve as a compliant bridge between the U.S. dollar and cryptocurrency financial systems. She also currently serves as a director of PSQ Holdings, Inc. (NYSE: PSQH). From 2016 to 2018, Ms. Long served as the Chairman and President of Symbiont.io, an enterprise fintech company that utilizes blockchain technology. Beginning in 2017 she helped lead the charge in her native state of Wyoming to enact more than 20 blockchain-enabling laws during consecutive legislative sessions, and in 2018 she was appointed by two Wyoming Governors to serve on related legislative committees. She worked at investment banks in New York and Zurich from 1994 to 2016, where she held senior roles as a Managing Director at Morgan Stanley and Credit Suisse. Ms. Long earned a B.A. from the University of Wyoming and a joint J.D./ M.P.P. degree from Harvard Law School and Harvard Kennedy School of Government.

Wesley Williams has served on our board of directors since August 2021. Mr. Williams brings over 25 years of experience in corporate finance. Since 2021, Mr. Williams has served as the Head of Aquarian Credit Partners/Senior Advisor, the syndicated high yield credit investing arm of insurance holding company Aquarian Holdings. From 2017 to August 2025, he served as Portfolio Manager, Chief Operating Officer, and a member of the Board of Managers of Gallatin Loan Management, a high yield credit investment management firm. From 2013 until 2016, Mr. Williams was a founding partner of Hildene Leveraged Credit, until its sale to affiliates of Fortress Investment Group. From 2010 through 2012, he worked as a turnaround Operating Partner, Interim CFO, and Shareholder Representative for Goldman Sachs portfolio companies. From 2006 until 2008, Mr. Williams worked as a Vice President of specialty finance and leveraged credit at Marathon Asset Management, a high yield credit investment manager. From 1999 through 2005, Mr. Williams also held various roles in the Investment Banking and Merchant Banking Divisions of Goldman Sachs. He holds an AB in Sociology from Harvard College and an MBA from Harvard Business School.

On February 11, 2026, the Board of Directors of Cipher Mining Inc. elected Thomas Duda as a director of the Company, effective immediately. Mr. Duda currently serves as Vice President of Real Estate at Henry Crown and Company, where he leads the firm's real estate investment and asset management activities, and is a member of the Investment and Management Committee. Previously, he held senior roles at Hunt Companies, Inc., where he focused on commercial real estate and infrastructure investments, and at One William Street Capital Management as a Managing Director of Investments.