United States Antimony (UAMY)Driehaus Capital Management LLC added to its stake +4.05M shares

5.35M

Shares reported · +4.05M vs prior quarter

0.34%

Disclosed portfolio weight

$46.7M

Reported value

Holdings as of

Mar 31, 2026

Filed

May 15, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jan 14, 2026Federal contract · $1.9M obligatedDepartment of Defense awarded UNITED STATES ANTIMONY CORP: $1.91M obligated to date
2. Mar 19, 2026Company filing · Form 8-K · ResultsReported its results
3. Mar 19, 2026Company filing · Form 8-K · ResultsReported its results
4. May 4, 2026Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“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.”
5. May 14, 2026Company filing · Form 8-K · ResultsReported its results
6. May 14, 2026Company filing · Form 8-K · ResultsReported its results

What came next

1. Jun 3, 2026Company filing · Form 8-K · Auditor changeChanged its auditor“On June 3, 2026, Assure combined its practice with, and was acquired by, Sadler Gibb & Associates, LLC (“Sadler Gibb”) (the “Transaction”). As a result of the Transaction, effective June 3, 2026, Assure effectively resigned and ceased to serve as the Company’s independent registered public accounting firm, and the Company engaged Sadler Gibb as its independent registered public accounting firm.”
2. Jun 9, 2026Federal contract · $15.5M obligatedDepartment of Defense awarded UNITED STATES ANTIMONY CORP: $15.5M obligated to date
3. Jun 26, 2026Federal contract · $30.0M obligatedDepartment of Defense awarded UNITED STATES ANTIMONY CORP: $30M obligated to date
4. Aug 11, 2026Company filing · Form 8-K · ResultsReported its results
5. Aug 11, 2026Company filing · Form 8-K · ResultsReported its results

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for United States Antimony

For United States Antimony, OQRO holds 2 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its UAMY page.

How this filing works

• SEC Form 13F

Other disclosures at United States Antimony

• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• USAspending.gov award recordJul 10, 2026
• USAspending.gov award recordJul 6, 2026
• USAspending.gov award recordJun 7, 2026
• SEC Form 4Sep 30, 2025

Everything OQRO holds on this company is on its UAMY page.