Welcome to our dedicated page for United States Antimony SEC filings (Ticker: UAMY), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
United States Antimony Corporation filings document the public-company record for an antimony, zeolite and critical-minerals producer and processor. Recent 8-K reports cover operating and financial results, conference-call materials, officer and finance-leadership changes, and operational updates tied to the Fostung tungsten property and its Technical Report Summary.
The company’s proxy materials describe annual-meeting voting matters and shareholder governance procedures. Its Form 25 records the withdrawal of common stock from NYSE American following the completed transfer of the listing to the New York Stock Exchange, while later current reports identify UAMY common stock as listed on the NYSE and NYSE Texas. The filings also disclose the company’s common stock class, par value, reporting status, and material-event exhibits.
United States Antimony Corporation reported a change in its outside auditor driven by a firm acquisition. On June 3, 2026, Assure CPA, LLC was acquired by Sadler Gibb & Associates, LLC, and Assure effectively resigned as the company’s independent registered public accounting firm.
The Audit Committee and full Board approved engaging Sadler Gibb as the new independent registered public accounting firm for the fiscal year ending December 31, 2026. Assure’s audit reports on the 2025 and 2024 financial statements contained no adverse opinions, disclaimers, or qualifications.
The company states there were no disagreements or reportable events with Assure through June 3, 2026. The lead engagement partner and professional staff who handled prior audits have moved to Sadler Gibb, providing continuity for future audits.
UNITED STATES ANTIMONY CORP senior vice president and chief financial officer Richard R. Isaak reported a disposition of 100,000 shares of common stock back to the company. This was a "Disposition to issuer" at $9.75 per share. After this transaction, he directly holds 344,376 common shares, indicating he retains a substantial equity position.
US Antimony filed Form 144 notices reporting proposed and recent sales of Common Stock. The filing lists a proposed sale entry showing 100,000 shares with an associated figure 975,000 and an effective date of 06/02/2026. It also lists a restricted lot of 120,179 shares dated 03/24/2025. Recent sales in the past three months include 30,000 shares on 03/25/2026 and 53,334 shares on 03/26/2026 with proceeds of $477,872.64.
UNITED STATES ANTIMONY CORP Interim CFO Shawn P. Winkler has filed an initial Form 3 reporting his status as an officer of the company. The filing shows no reported purchases, sales, gifts, or derivative exercises, and lists no current derivative positions or holding entries.
United States Antimony Corporation used its latest update to outline a mixed first quarter of 2026 and an aggressive growth plan. Sales were $6.8 million, roughly in line with last year’s $7 million, but the company reported a net loss of $11.3 million, driven mainly by $4.8 million of non-cash stock compensation, a $4.1 million unrealized loss on Larvotto equity, and higher costs tied to ramping operations.
Management emphasized a strong balance sheet, with $60.2 million in cash, U.S. Treasuries, and equity securities at quarter-end, plus $12.8 million received afterward from a $27 million U.S. government expansion grant and $48.6 million of equity proceeds. Inventory rose to $22 million as the company builds feedstock for higher antimony production.
The call focused heavily on growth initiatives: expanding the Thompson Falls smelter toward roughly 230 tons per month of new capacity, ramping Mexican and Bolivian antimony supply, and preparing a hydrometallurgical plant in Idaho targeting 1,000 tons per month of 99.9% pure antimony by 2028. The company is also advancing tungsten at the Fostung deposit in Canada, where an inferred resource of 14.62 million tonnes grading 0.17% WO3 was cited, and a Nolan Creek antimony-gold project in Alaska with previously reported high-grade resources.
In zeolites, the BRZ division launched a cattle nutrition segment and reported record shipment tonnage in March and April, with March about 60% higher than the prior year and both months exceeding internal targets by over 40% and 60%, respectively. Management reiterated 2026 revenue guidance of $125 million, expecting $75 million to $95 million of that from antimony ingot deliveries under U.S. government contracts, supported by existing inventory, new mine plans, and expanding processing capacity.
United States Antimony Corp reports a filing showing Van Eck Associates Corp beneficially owns 10,369,695 common shares (7.23%). The Schedule 13G lists Van Eck with sole voting and sole dispositive power over those shares as of 03/31/2026. The filing is signed on 05/15/2026 by Ashley Sousa.
United States Antimony Corporation reported first quarter 2026 revenue of $6.8 million and a net loss of $11.3 million, reversing a small profit a year earlier. Gross margin fell to about 16% from 34% as higher-cost antimony flowed through cost of sales and volumes dropped.
Operating expenses rose to $8.6 million from $2.0 million, driven largely by $4.8 million of non-cash share-based compensation tied to leadership hiring and share price appreciation. The company recorded a $4.1 million unrealized loss on its Larvotto Resources equity investment.
US Antimony invested heavily, with $12.6 million in capital expenditures for the Radersburg flotation mill, Thompson Falls smelter expansion, and new mineral rights. It recognized $12.8 million of Department of War grant milestones as a reduction of construction-in-progress and ended the quarter with liquid resources of $23.7 million. Post-quarter, it raised roughly $48.6 million by selling about 4.2 million shares and reiterated full-year 2026 gross revenue guidance of approximately $125 million, weighted to the second half of the year.
United States Antimony Corporation reported a net loss of $11.3M for the quarter ended March 31, 2026, compared with net income in the prior-year period. Revenue edged down to $6.8M, but gross profit fell sharply as costs per pound of antimony and per ton of zeolite rose and inventory was written down to net realizable value.
Operating expenses increased to $8.6M, driven largely by $4.8M of share-based compensation, while an unrealized loss of $4.1M on the Larvotto equity investment pushed total other expense to $3.8M. Cash and equivalents declined to $3.4M from $30.7M as the company used $12.1M in operating cash flow and $12.6M for capital expenditures, including a precious metals mill acquisition and expansion of the Thompson Falls facility.
In March 2026, the company was awarded a $27.0M Defense Production Act grant to expand and modernize U.S. antimony processing, with $12.8M of milestone funding recognized as a government grant receivable and recorded as a reduction of construction-in-progress assets. Subsequent to quarter-end, US Antimony raised additional equity through “at-the-market” offerings totaling $48.6M, supporting its aggressive capital program and new hydrometallurgical joint venture development.
United States Antimony Corporation announced that Chief Financial Officer Richard Isaak has begun a temporary personal leave of absence effective May 4, 2026. The company states the leave is strictly personal and unrelated to financial performance, accounting, internal controls, or financial reporting.
The Board appointed former financial consultant Shawn Winkler, age 50, as Interim Chief Financial Officer and principal financial officer, effective May 4, 2026. Winkler will receive a monthly cash stipend of $20,000 and a one-time grant of 100,000 stock purchase warrants with a strike price set at the April 27, 2026 closing share price.
Mr. Isaak is expected to return after the leave, currently anticipated to last at least two months. The company also reaffirmed plans to release financial results for the quarter ended March 31, 2026 on May 14, 2026, with Winkler leading the financial reporting process and upcoming earnings call.
United States Antimony Corporation plans to release its first quarter 2026 financial and operating results after U.S. markets close on Thursday, May 14, 2026. Senior management will host a conference call and webcast that day at 4:15 p.m. Eastern time.
The company describes itself as a leading producer and processor of antimony, zeolite, and other critical minerals, and the only fully integrated antimony company in the world outside of China and Russia. It mines and processes antimony products and zeolite across facilities in the U.S., Mexico, Canada, and Idaho.