Welcome to our dedicated page for MAC Copper SEC filings (Ticker: MTAL), 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.
This page aggregates historical U.S. Securities and Exchange Commission filings for MAC Copper Limited, which previously traded on the New York Stock Exchange under the ticker MTAL. MAC Copper Limited was a foreign private issuer and filed reports such as Form 20-F and Form 6-K in connection with its metals and mining activities and corporate developments.
Among the key documents available are multiple Form 6-K current reports that furnish press releases on topics including the proposed acquisition of 100% of MAC’s issued share capital by Harmony Gold (Australia) Pty Ltd via a Jersey law scheme of arrangement, court directions and sanction of the scheme, dispatch of the scheme circular, shareholder voting results, and regulatory approvals from the South African Reserve Bank and Australia’s Foreign Investment Review Board. These filings also incorporate operational updates, such as the June 2025 quarterly activities report describing safety performance, copper production, cost metrics, and project development at the CSA Copper Mine.
A pivotal document in the MTAL filing history is Form 15, in which MAC Copper Limited certified the termination of registration of its ordinary shares under Section 12(g) of the Securities Exchange Act of 1934 and the suspension of its duty to file reports under Sections 13 and 15(d). The Form 15 explains that, effective as of October 10, 2025 and implemented on October 24, 2025, Harmony Gold (Australia) Pty Ltd acquired 100% of the issued share capital in MAC Copper Limited by way of the Jersey law scheme of arrangement, and notes that the approximate number of holders of record as of the certification date was one.
Through this filings archive, users can follow how MAC Copper Limited reported on the Harmony transaction, its financing and streaming arrangements, and its risk exposures, as well as how it completed its transition from a listed foreign private issuer to a wholly owned subsidiary. Stock Titan’s tools can help summarize lengthy filings, highlight key terms in forms such as 6-K and 15-12G, and make it easier to understand the implications of these regulatory documents for the historical MTAL listing.
MAC Copper Limited furnished a Form 6-K for October 2025 as a foreign private issuer. The report primarily serves a procedural role by attaching a press release dated October 9, 2025 as an exhibit. It also states that this Form 6-K, including all exhibits, is incorporated by reference into MAC Copper’s existing shelf registration statement on Form F-3 (Registration No. 333-276216), making the information in the press release and any other exhibits legally part of that registration statement.
MAC Copper Limited furnished a Form 6-K as a report of a foreign private issuer for October 2025. The filing states that this report, including all exhibits, is incorporated by reference into the company’s Form F-3 registration statement (Registration No. 333-276216).
The exhibit list identifies a press release dated October 6, 2025 as Exhibit 99.1. The report is signed on behalf of MAC Copper Limited by Chief Executive Officer Michael James McMullen on October 6, 2025.
MAC Copper Limited submitted a Form 6-K as a foreign private issuer for August 2025. The filing primarily serves a legal and procedural role rather than providing financial results.
The report specifies that it is incorporated by reference into MAC Copper Limited’s existing Form F-3 shelf registration (No. 333-276216). It also indexes an exhibit consisting of a press release dated August 18, 2025, which contains the substantive information referenced by this filing.