---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-055951"
form_type: "8-K"
ticker: "UAMY"
cik: "0000101538"
company_name: "UNITED STATES ANTIMONY CORP"
filed_at: "2026-05-06T23:59:59+00:00"
generated_at: "2026-05-14T22:26:45.194754+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

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

## Summary
- 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.

## SEC filing metadata
- accession: 0001104659-26-055951
- form_type: 8-K
- ticker: UAMY
- cik: 0000101538
- company_name: UNITED STATES ANTIMONY CORP
- filed_at: 2026-05-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/101538/000110465926055951/0001104659-26-055951-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/101538/000110465926055951/tm2613688d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-055951
- JSON: https://secwatch.observer/filing/0001104659-26-055951.json
- Plain text: https://secwatch.observer/filing/0001104659-26-055951.txt

## Key facts
- Executive change
  Shawn Winkler was appointed as Interim Chief Financial Officer at UNITED STATES ANTIMONY CORP.
  - Action: appointed
  - Role: Interim Chief Financial Officer
  source text: 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.
  evidence_url: https://www.sec.gov/Archives/edgar/data/101538/000110465926055951/0001104659-26-055951-index.htm
- Executive change
  Richard Isaak departed as Chief Financial Officer at UNITED STATES ANTIMONY CORP.
  - Action: commenced personal leave
  - Role: Chief Financial Officer
  source text: 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.
  evidence_url: https://www.sec.gov/Archives/edgar/data/101538/000110465926055951/0001104659-26-055951-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.