Filing summary
United States Antimony Corporation (NYSE: UAMY) filed this Form 8-K to report a leadership change effective September 30, 2026. The report was signed October 2, 2026.
Management change
The Board appointed Shawn P. Winkler as Senior Vice President and Chief Financial Officer on a permanent basis. Winkler had served as interim CFO since May 4, 2026. Richard R. Isaak ceased serving as Senior Vice President and CFO and was terminated without cause effective September 30, 2026. The company stated that Isaak’s departure was not related to financial or operating results or to disagreements or concerns about financial or reporting practices.
Winkler previously served as CFO of Burrow Global and spent 15 years in investment banking at BMO Capital Markets and Deutsche Bank Securities, advising natural-resources clients. The filing reports no appointment-related arrangements, family relationships with company directors or executive officers, or reportable transactions with the company.
Financial information and outlook
This filing does not provide revenue, earnings, cash flow, margins, debt, liquidity, or other operating results, nor does it provide guidance or an outlook. No clear values for these metrics are included in the filing text.
Key facts to verify
- Winkler’s permanent CFO appointment and Isaak’s departure both took effect September 30, 2026.
- The company characterized Isaak’s termination as without cause and stated it was unrelated to financial or operating results or financial-reporting disagreements.
- This 8-K reports a personnel change, not comparable-period financial results.