United States Antimony Corp: appoints Shawn P. Winkler as CFO

What happened United States Antimony Corp reported that effective Sep 30, 2026, the board appointed Shawn P. Winkler as senior vice president and chief financial officer. The filing states that Richard R. Isaak will cease to be the senior vice president and chief financial officer and that the board terminated Mr. Isaak’s employment, without cause, effective Sep 30, 2026. The filing says Mr. Isaak’s termination was not related to the Company’s financial or operating results or to any disagreements or concerns regarding the Company’s financial or reporting practices.

Key details

• Shawn P. Winkler was appointed on a permanent basis effective Sep 30, 2026; he had been interim CFO since May 4, 2026.
• The board terminated Richard R. Isaak’s employment without cause, effective Sep 30, 2026.
• Mr. Winkler previously served as chief financial officer of Burrow Global and spent 15 years as an investment banker at BMO Capital Markets and Deutsche Bank Securities.
• The filing states there are no arrangements or understandings related to Mr. Winkler’s appointment, no family relationships with company officers or directors, and no reportable transactions under Item 404(a) of Regulation S-K.

Why it may matter This report was filed under Item 5.02, which covers departure of directors or certain officers and election of directors; it discloses a chief financial officer transition. The filing does not show why the company acted.