CEO, 10%
Chester Billingsley (also referred to as Chet or Billingsley Chester) is the Chairman, CEO, Principal Financial Officer, founder, director, and a more than 10% owner of Mentor Capital, Inc. (MNTR), a publicly traded company he established in Silicon Valley in 1985 and took public in 1996.[[1]](https://www.mentorcapital.com/about-us/management-team)[[2]](https://www.gurufocus.com/insider/114763/chester-billingsley)[[3]](https://www.medicaljane.com/directory/professional/chester-billingsley/)[[4]](https://www.stocktitan.net/sec-filings/MNTR/form-4-mentor-capital-inc-insider-trading-activity-ccbde25d20c6.html) A native of Minnesota, he received a congressional appointment to the West Point Military Academy for his undergraduate studies, followed by a Master's Degree in Applied Physics from Harvard University, with concurrent studies at Harvard Business School and MIT’s Nuclear Engineering Department.[[1]](https://www.mentorcapital.com/about-us/management-team) His early career spanned the energy sector, including roles at General Electric’s Nuclear Division and administering technology contracts for the U.S. Department of Energy, before founding Mentor Capital.[[1]](https://www.mentorcapital.com/about-us/management-team)
Billingsley has directed over 38 acquisitions or investments in portfolio businesses, led public gas trading mini-tender offers, oil and gas partnership deals, and in 2023 launched the Mentor Capital Classic Energy Index focused on oil, gas, uranium, coal, and related sectors.[[1]](https://www.mentorcapital.com/about-us/management-team) Recently, as a corporate insider, he purchased 1,200 common shares on January 12, 2026, at $0.088 per share, and 11 Series Q Convertible Preferred Shares convertible into approximately 2,592,159 common shares, owning about 3,161,496 common shares post-transaction.[[2]](https://www.gurufocus.com/insider/114763/chester-billingsley)[[4]](https://www.stocktitan.net/sec-filings/MNTR/form-4-mentor-capital-inc-insider-trading-activity-ccbde25d20c6.html)[[6]](https://www.investing.com/news/insider-trading-news/billingsley-chester-ceo-of-mentor-capital-buys-shares-worth-105-93CH-4448101) He is a former Registered Investment Advisor with recognition including from the President of the United States.[[1]](https://www.mentorcapital.com/about-us/management-team)[[7]](https://www.mentorcapital.com/about-us/kind-words)
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