CEO
Fred Thiel (born 1960), also known as Frederick G. Thiel, is an American business executive serving as Chairman of the Board and Chief Executive Officer of MARA Holdings, Inc. (NASDAQ: MARA), a leading bitcoin mining company, since April 2021.[[1]](https://ir.mara.com/company-information/management-team)[[2]](https://ir.mara.com/corporate-governance/board-of-directors)[[4]](https://simplywall.st/stocks/us/software/nasdaq-mara/mara-holdings/management)[[5]](https://en.wikipedia.org/wiki/Fred_Thiel) With over 35 years in the technology sector, he has led organizations in digital assets, AI, semiconductors, and enterprise software, growing MARA's market cap from under $30 million to over $5 billion with operations across four continents.[[1]](https://ir.mara.com/company-information/management-team)[[2]](https://ir.mara.com/corporate-governance/board-of-directors)
Thiel previously served as CEO of Local Corporation, Lantronix, and GameSpy, and founded Argenthal Holdings, a boutique financial advisory firm focusing on AI/HPC, cybersecurity, and blockchain investments.[[1]](https://ir.mara.com/company-information/management-team)[[2]](https://ir.mara.com/corporate-governance/board-of-directors)[[5]](https://en.wikipedia.org/wiki/Fred_Thiel) He heads Thiel Advisors since 2013, advising firms like EQT AB and Graham Partners, and chairs Oden Technologies while serving on boards including Campden Wealth, IPI, and International Education Corporation.[[1]](https://ir.mara.com/company-information/management-team)[[2]](https://ir.mara.com/corporate-governance/board-of-directors)[[5]](https://en.wikipedia.org/wiki/Fred_Thiel) Thiel attended the Stockholm School of Economics and Harvard Business School, and is active in the Young Presidents’ Organization.[[1]](https://ir.mara.com/company-information/management-team)[[2]](https://ir.mara.com/corporate-governance/board-of-directors) Recently, on February 17, 2026, he sold 27,505 MARA shares for $210,688 under a Rule 10b5-1 plan, retaining 3,381,861 shares directly.[[3]](https://www.investing.com/news/insider-trading-news/mara-holdings-ceo-thiel-sells-210k-in-stock-93CH-4515102)
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