Richard R. Isaak

SVP and Chief Financial Officer (principal financial officer and principal accounting officer), United States Antimony Corporation

Former. First published here October 28, 2026; built from records as of October 28, 2026.

United States Antimony Corporation named Shawn P. Winkler to succeed Richard R. Isaak, effective September 30, 2026.²

Seats

The seat in the record

Company	Title as filed	Standing	Filings
United States Antimony Corporation (UAMY) Primary Smelting & Refining of Nonferrous Metals	SVP and Chief Financial Officer (principal financial officer and principal accounting officer)	Former	2

Company names link to the company's page in the record at CFO Tribune, which holds the seat history.

The record

Filing by filing, latest first

September 30, 2026effective
United States Antimony Corporation named Shawn P. Winkler to succeed Richard R. Isaak, effective September 30, 2026. Profile of Shawn P. Winkler.
Isaak will cease to be the Senior Vice President and Chief Financial Officer of the Company as of the Effective Date.
[2] Filing by United States Antimony Corporation, filed with the SEC on October 2, 2026. Read the filing. The record at CFO Tribune.
March 19, 202610-K filed
Richard R. Isaak signed the annual report of United States Antimony Corporation on Form 10-K as SVP and Chief Financial Officer (principal financial officer and principal accounting officer), filed March 19, 2026.
/s/ Richard R. Isaak Date: March 19, 2026 Richard R. Isaak SVP and Chief Financial Officer (principal financial officer and principal accounting officer)
[1] Annual report on Form 10-K by United States Antimony Corporation, filed with the SEC on March 19, 2026. Read the filing. The record at CFO Tribune.

Sources

Annual report on Form 10-K, United States Antimony Corporation. U.S. Securities and Exchange Commission, EDGAR, filed March 19, 2026. sec.gov; record.
Current report filed with the SEC, United States Antimony Corporation. U.S. Securities and Exchange Commission, EDGAR, filed October 2, 2026. sec.gov; record.

Corrections and removal

If a line here is wrong, or Richard R. Isaak wants this profile taken down, write to corrections@cfospotlights.com. Corrections are made on the page with a dated note; removal requests are answered within 72 hours. The underlying filings stay public at the SEC.