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ioneer Ltd filings document a foreign private issuer developing the Rhyolite Ridge Lithium-Boron Project in Nevada. Form 6-K reports include quarterly activities updates, federal permit and court disclosures, equity placement materials, securities quotation notices for ordinary shares, and investor presentations connected to the company’s lithium-boron development work.
The filing record also includes annual general meeting materials, proxy and voting procedures, a corporate governance statement, ASX Appendix 4G disclosures, and references to technical reporting under SEC Regulation S-K Subpart 1300. These documents address governance, capital structure, project economics, environmental and permitting matters, and risks associated with bringing Rhyolite Ridge toward production.
Ioneer Ltd reported an interim net loss of $4.0 million for the six months ended 30 June 2026, similar to the prior six‑month loss of $4.1 million. The business remains in the development stage with no operating revenues, focused on the Rhyolite Ridge lithium‑boron project in Nevada.
Cash and cash equivalents increased to $58.8 million, driven by a $50.4 million equity capital raise that lifted issued capital to 3.07 billion shares and net assets to $276.7 million. Exploration and evaluation assets rose to $214.7 million, mainly at Rhyolite Ridge, and the group continues to prepare for a future Final Investment Decision.
The U.S. Bureau of Land Management’s favourable Record of Decision for Rhyolite Ridge was upheld by a U.S. District Court, and an appeal to the Ninth Circuit is in progress. Ioneer also discloses an undrawn $996 million U.S. Department of Energy loan facility and states the accounts are prepared on a going‑concern basis with no material uncertainties identified.
ioneer Ltd has registered up to $300,000,000 of ordinary shares, preference shares, warrants, subscription rights, debt securities and units under a Form F-3 shelf registration, allowing offerings from time to time via prospectus supplements. The company’s primary business is developing the Rhyolite Ridge lithium-boron project in Nevada, where it held a 100% interest and had invested US$209.0 million as of December 31, 2025. The project has received a federal permit and a Record of Decision from the U.S. Bureau of Land Management, completing the federal permitting process. ioneer also closed a US$996 million loan from the U.S. Department of Energy’s Loan Programs Office to support construction of an on-site processing facility, subject to conditions including a strategic partnering agreement and securing additional funding. Net proceeds from any future securities offerings are expected to be used for general corporate purposes, with detailed terms to be set in individual prospectus supplements.
Ioneer Ltd reported June 2026 quarter activities and cash of US$58.84 million as it advances its 100%-owned Rhyolite Ridge Lithium-Boron Project in Nevada. The company entered non-binding MOUs with Korea’s KIND and Hyundai Engineering, under which KIND may consider an equity investment and Hyundai may provide procurement-related services; Goldman Sachs is assisting a strategic partnering process targeted to conclude in Q3 2026.
Permitting advanced with a U.S. District Court decision on 27 March 2026 upholding federal approvals; environmental groups have appealed to the Ninth Circuit, and the company states this appeal is not expected to delay construction. Ioneer maintained compliance with Nevada environmental permits and reported no lost-time injuries. Conservation work for Tiehm’s buckwheat progressed, with successful transplanting and strong early plant survival.
Ioneer completed a pre-feasibility study confirming feasibility of producing battery-grade lithium carbonate and is 95% through a boron carbide plant pre-feasibility study. A conditional long-term land-lease award was received from the U.S. Army for a boron products facility at Tooele Army Depot. Quarterly operating cash outflow was US$1.45 million and capitalised exploration and evaluation spend was US$2.49 million, giving an estimated funding runway of 14.9 quarters. The company had 3.07 billion ordinary shares and 77.3 million performance rights on issue at period-end.
ioneer Ltd has filed a shelf registration on Form F-3 to offer up to $300,000,000 of securities, including ordinary shares (which may be represented by ADSs), preference shares, warrants, subscription rights, debt securities and units, in one or more offerings from time to time after effectiveness.
The company’s primary business is developing the Rhyolite Ridge lithium-boron project in Nevada, in which it holds a 100% interest. As of December 31, 2025, it had invested US$209.0 million in the project and obtained a federal permit and Record of Decision from the U.S. Bureau of Land Management in 2024, completing the federal permitting process. On January 20, 2025, ioneer closed a US$996 million U.S. Department of Energy loan, including US$968 million in principal and US$28 million in capitalized interest with a 20-year term, to support an on-site processing facility, subject to conditions precedent. Net proceeds from any securities sales are expected to be used for general corporate purposes.
Ioneer Ltd reported that it has signed non-binding Memorandums of Understanding with Korea’s public infrastructure institution KIND and Hyundai Engineering to advance the Rhyolite Ridge Lithium-Boron Project in Nevada. KIND is considering an equity investment in the project, while Hyundai Engineering is considering providing procurement-related activities.
Ioneer has invested more than US$220 million in Rhyolite Ridge and completed over 70% of advanced engineering. The project is described as the only known lithium-boron reserve in North America and is expected to support 275–300 permanent jobs once operational. The company highlights a previously closed US$996 million U.S. Department of Energy loan and earlier offtake agreements with Ford, Prime Planet Energy & Solutions and EcoPro Innovation as part of the project’s commercial foundations.
The company emphasizes that these MOUs are non-binding and do not create legally enforceable obligations for KIND or Hyundai Engineering, and there is no certainty that definitive agreements or investments will follow.
ioneer Ltd Vice President Human Resources Kenneth D. Coon reported an open-market sale of 113,899 Ordinary Shares on July 2, 2026. According to the footnotes, the shares were sold for tax purposes related to vesting of performance units on July 1, 2026, at approximately AUD$0.1550 per share. Following the transaction, he holds 3,475,989 Ordinary Shares directly.
ioneer Ltd senior vice president of engineering operations Matthew Weaver reported an open-market sale of 251,293 Ordinary Shares on July 2, 2026. A footnote explains the shares were sold for tax purposes in connection with the vesting of performance units on July 1, 2026. After this transaction, Weaver directly holds 11,299,711 Ordinary Shares, indicating he retained the vast majority of his position.
ioneer Ltd Vice President of Corporate Development and External Affairs Chad Yeftich reported an open-market sale of 706,781 Ordinary Shares at $0.11 per share on July 2, 2026. A footnote explains these shares were sold for tax purposes in connection with the vesting of performance units on July 1, 2026.
Following this transaction, Yeftich directly holds 6,386,671 Ordinary Shares. The filing characterizes the sale as related to equity compensation rather than a discretionary change in ownership.
ioneer Ltd reported that VP Corp Dev & External Affairs Chad Yeftich acquired 203,751 Ordinary Shares as a compensation-related award. The shares were recorded at a price of $0.00 per share, indicating they were granted rather than bought in the open market.
According to a footnote, this reflects the conversion of 203,751 performance units into the right to receive an equal number of Ordinary Shares on July 1, 2026. After this award, Yeftich directly holds a total of 7,093,452 Ordinary Shares.