10:28 AM EST, 12/02/2025 (MT Newswires) -- ASP Isotopes ( ASPI ) said Tuesday that founder and Executive Chairman Paul Mann will resume his role as chief executive officer on Jan. 19, following his medical leave.

Mann took a leave of absence in September and the board named Chief Operating Officer Robert Ainscow as interim CEO. Ainscow will continue as COO, the company said.

Mann said he has been meeting with shareholders in recent weeks and believes 2026 could be a "highly transformative" year for the company.

Shares of the company were up 4.3% in recent Tuesday trading.

Price: 5.82, Change: +0.24, Percent Change: +4.30