US Antimony CFO Richard Isaak on personal leave; Shawn Winkler named interim CFO effective May 4

UNITED STATES ANTIMONY CORP

CFO Richard Isaak commenced personal leave effective May 4, 2026; expected return after minimum two months.
Board appointed Shawn Winkler as Interim CFO; he previously served as financial consultant for six months.
Winkler receives $20,000/month stipend and 100,000 stock purchase warrants (strike = April 27 closing price).
Company reaffirms Q1 2026 earnings release on May 14, 2026 remains on track.
Isaak's leave is personal, unrelated to financial performance, accounting, or internal controls.

item 5.02 item 7.01 item 9.01

Executive movements

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Appointed (interim)

Shawn Winkler

Interim Chief Financial Officer

UAMY · UNITED STATES ANTIMONY CORP

Effective: 2026-05-04
Filed: May 6, 2026, 7:59 PM ET

the Board of Directors of the Company appointed Shawn Winkler, age 50, to serve as Interim Chief Financial Officer and principal financial officer of the Company, effective May 4, 2026.

Departed

Richard Isaak

Chief Financial Officer

UAMY · UNITED STATES ANTIMONY CORP

Effective: 2026-05-04
Successor: Shawn Winkler
Filed: May 6, 2026, 7:59 PM ET

On May 4, 2026, United States Antimony Corporation (the "Company") announced that Richard Isaak, the Company's Chief Financial Officer and principal financial officer, will commence a personal leave of absence effective immediately.

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.95

Shawn Winkler was appointed as Interim Chief Financial Officer at UNITED STATES ANTIMONY CORP.

Action: appointed
Role: Interim Chief Financial Officer

Exact text from the filing

the Board of Directors of the Company appointed Shawn Winkler, age 50, to serve as Interim Chief Financial Officer and principal financial officer of the Company, effective May 4, 2026.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Richard Isaak departed as Chief Financial Officer at UNITED STATES ANTIMONY CORP.

Action: commenced personal leave
Role: Chief Financial Officer

Exact text from the filing

On May 4, 2026, United States Antimony Corporation (the "Company") announced that Richard Isaak, the Company's Chief Financial Officer and principal financial officer, will commence a personal leave of absence effective immediately.

View on SEC.gov

UNITED STATES ANTIMONY CORP filing history →

Source: SEC EDGAR

accession 0001104659-26-055951

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