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Grayscale Bitcoin Trust ETF (NYSEARCA:GBTC) reported a change in its board of directors, according to a statement released Monday based on a SEC filing. On October 13, 2025, Matthew Kummell stepped down as a director of the board of GSO Intermediate Holdings Corporation, the sole managing member of Grayscale Operating, LLC, which is the sole member of Grayscale Investments Sponsors, LLC, the sponsor of the trust.
Following Kummell’s departure, Simon Koster was appointed as a director of the board. Mr. Koster is currently the Chief Strategy Officer at Digital Currency Group, Inc., where he leads the investment team and manages a portfolio that includes digital assets, wholly owned subsidiaries, and over 250 early-stage companies in more than 35 countries.
Prior to his current role, Koster served as CEO of Real Estate at Digital Currency Group and previously as CEO of The Collective. He also has a decade of experience at JDS Development Group, focusing on acquisitions and development of residential, hospitality, and mixed-use projects in New York City and Miami. Koster holds a Bachelor of Science from Rutgers University and a Master’s degree in Engineering from the University of Michigan.
Koster has served on the boards of Foundry and Luno since 2023, as well as on the boards of Fortitude since 2024 and Yuma since 2025. Each of these companies is affiliated with Grayscale.
The information in this article is based on a press release statement filed with the Securities and Exchange Commission.
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