SEC Commissioner Hester Peirce submitted her formal resignation from the US Securities and Exchange Commission, effective Oct. 2. Known widely as "Crypto Mom" for her advocacy of clear, rules-based regulation in the digital asset sector, Peirce posted her resignation letter on X Friday. In the document, she thanked President Donald Trump for the "honor of her professional lifetime" and noted she was departing under the leadership of Chairman Paul Atkins and Commissioner Mark Uyeda, the two remaining Republican members. Her term officially expired in June 2025, but commissioners may serve up to approximately 18 months post-expiration if not replaced.

Peirce served on the commission for about eight years and held the role of director of the agency’s Crypto Task Force since Feb. 4, 2025. The task force has been examining how existing securities laws apply to digital assets and decentralized systems. Cointelegraph reported in May that Peirce plans to join Regent University’s law school in Virginia as an associate professor in November, focusing on federal litigation, securities regulation, and digital assets. Her departure leaves a potential vacancy that may remain unfilled; previous Democratic commissioner Caroline Crenshaw departed in January with no subsequent nominations made by President Trump. Since Trump took office in January 2025, the SEC has shifted its crypto approach, dropping several enforcement actions and investigations into crypto companies, including those tied to Trump and his family.