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US Antimony names Shawn Winkler permanent CFO

Before joining UAMY, Winkler served as a CFO and spent 15 years advising natural-resources clients on M&A transactions and capital raises.

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Form Type
8-K

Rhea-AI Filing Summary

United States Antimony Corporation (UAMY) appointed Shawn P. Winkler as Senior Vice President and Chief Financial Officer on a permanent basis, effective September 30, 2026; he had served as interim CFO since May 4, 2026. On the effective date, Richard R. Isaak ceased to be Senior Vice President and CFO, and the company terminated his employment without cause. The company stated that the termination was not related to its financial or operating results or to disagreements or concerns regarding its financial or reporting practices. Winkler previously served as CFO of Burrow Global and spent 15 years as an investment banker advising natural-resources clients on more than $10 billion of M&A transactions.

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Analyzing...

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance
Key personnel changes including departures, elections, or appointments of directors and executive officers.
Permanent CFO appointment effective date September 30, 2026 Winkler's appointment as Senior Vice President and Chief Financial Officer
Interim CFO appointment date May 4, 2026 Winkler was appointed Interim Chief Financial Officer
Investment-banking experience 15 years Winkler's prior investment-banking career
M&A transactions advised on More than $10 billion Winkler's investment-banking work
full capital structure financial
"capital raises across the full capital structure"
high-yield and convertible notes financial
"follow-on equity, high-yield and convertible notes"
acquisition financing financial
"bank and institutional loans, and acquisition financing"
Acquisition financing is the money a buyer uses to pay for another company, typically drawn from cash on hand, new loans, or by selling new shares. Think of it like choosing between a mortgage, a personal loan, or crowdfunding to buy a house; each choice affects monthly costs, ownership stakes and long-term risk. Investors watch these choices because they change a buyer’s debt load, interest costs, and potential share dilution, all of which influence future returns and company stability.

FAQ

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What experience does UAMY's new CFO Shawn P. Winkler have?

Before joining United States Antimony Corporation, Winkler served as CFO of Burrow Global, a Texas-based engineering, procurement and construction firm serving the energy industry. He spent 15 years as an investment banker at BMO Capital Markets and Deutsche Bank Securities, advising clients on more than $10 billion of M&A transactions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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false 0000101538 0000101538 2026-09-30 2026-09-30 0000101538 UAMY:CommonStockOneMember 2026-09-30 2026-09-30 0000101538 UAMY:CommonStockTwoMember 2026-09-30 2026-09-30 iso4217:USD xbrli:shares iso4217:USD xbrli:shares

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

 

Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

 

Date of report (Date of earliest event reported) September 30, 2026

 

  UNITED STATES ANTIMONY CORPORATION  
  (Exact name of registrant as specified in its charter)  

 

Texas   001-08675   81-0305822

(State or other jurisdiction

of incorporation) 

 

(Commission

File No.)

 

(IRS Employer

Identification Number)

 

4438 W. Lovers Lane, Unit 100, Dallas, TX   75209
(Address of principal executive officers)   (Zip Code)

 

Registrant’s telephone number, including area code: (406) 606-4117

 

Not Applicable

(Former name or former address, if changed since last report.)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
   
¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
   
¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
   
¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class   Trading Symbol(s)   Name of each exchange on which registered
Common Stock, $0.01 par value   UAMY   NYSE
Common Stock, $0.01 par value   UAMY   NYSE Texas

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

 

Emerging growth company ¨

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

 

 

 

 

 

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

 

Chief Financial Officer Transition

 

As previously reported, on May 4, 2026, Shawn P. Winkler was appointed as the Interim Chief Financial Officer of United States Antimony Corporation (the “Company”). Effective as of September 30, 2026 (the “Effective Date”), the Board has appointed Mr. Winkler as Senior Vice President and Chief Financial Officer of the Company on a permanent basis. In connection with the appointment, Richard R. Isaak will cease to be the Senior Vice President and Chief Financial Officer of the Company as of the Effective Date. In addition, the Board terminated Mr. Isaak’s employment with the Company, without cause, effective as of the Effective Date. 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. The Company thanks Mr. Isaak for his service and contributions to the Company.

 

Prior to joining the Company, Mr. Winkler served as Chief Financial Officer of Burrow Global, a Texas-based full-service engineering, procurement, and construction firm serving the energy industry. Before his tenure at Burrow Global, Mr. Winkler spent 15 years as an investment banker at BMO Capital Markets and Deutsche Bank Securities, advising public and private clients in the natural resources sector on more than $10 billion of M&A transactions. He led capital raises across the full capital structure including IPOs, follow-on equity, high-yield and convertible notes, bank and institutional loans, and acquisition financing. Mr. Winkler holds an MBA from Rice University’s Jones Graduate School of Management, where he was named a Jones Scholar, and a Bachelor of Arts in Economics, Managerial Studies, and Policy Studies, also from Rice University.

 

There are no arrangements or understandings between Mr. Winkler and any other persons pursuant to which he was appointed as Chief Financial Officer of the Company. There are no family relationships between Mr. Winkler and any director or executive officer of the Company, and there are no transactions between Mr. Winkler and the Company that would be reportable under Item 404(a) of Regulation S-K.

 

 

 

 

SIGNATURES

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

  UNITED STATES ANTIMONY CORPORATION
   
Dated: October 2, 2026   By: /s/Gary C. Evans
  Gary C. Evans
  Chief Executive Officer

 

 

 

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