ALCOA

Alcoa Corporation’s shareholder base is disclosed mainly through periodic securities filings rather than a single ownership register, and the holdings shown on this profile reflect a snapshot of major institutional investors dated 4 September 2026. The largest disclosed holder is Vanguard Group Inc, an investment management firm, with a reported stake of approximately 15.9 percent of Alcoa Corporation’s outstanding common stock. Other disclosed holders are index and sector exchange-traded funds, including iShares Trust’s Core S&P Mid-Cap ETF (approximately 5.2 percent), the SPDR S&P Metals & Mining ETF (approximately 2.3 percent) and the SPDR S&P MidCap 400 ETF Trust (approximately 1.2 percent), together with Norges Bank, which manages Norway’s sovereign wealth fund investments and held approximately 2.1 percent. Six shareholders are recorded in total, of which the five largest are shown here.

These figures represent large, disclosed institutional and fund holdings rather than a complete shareholder register. As is typical for a New York Stock Exchange-listed company, most of Alcoa Corporation’s outstanding shares are held in smaller amounts across a broad base of institutional and retail investors that fall below the reporting thresholds captured here, so this should be treated as a major-shareholders-only view rather than a full and current shareholder list.

No ultimate beneficial owner can be identified from this information: every disclosed holder is itself an investment manager, fund or sovereign investment vehicle rather than a natural person, and none of the reported stakes represents a controlling interest. Identifying a beneficial owner would require tracing ownership or control further up each holder’s own structure, which falls outside the scope of the disclosed shareholding data.

Pennsylvania’s business registry lists five officers currently associated with this filing for Alcoa Corporation, without appointment or resignation dates, nationality or country of residence. Two of the named individuals can be independently confirmed as current Alcoa Corporation personnel from the company’s own public disclosures: William Oplinger, whom the filing records under the title Treasurer, and Marc Pereira, recorded under the title Manager. According to Alcoa Corporation’s investor-relations disclosures, Mr Oplinger served as Executive Vice President and Chief Financial Officer from 2016 until February 2023, then as Chief Operations Officer until September 2023, when he became President and Chief Executive Officer, the role he holds today. This indicates that the registry’s Treasurer title for Mr Oplinger reflects an earlier point in his career at the company rather than his current position. Marc Pereira is separately identified in company sources as Vice President, Energy, a more specific role than the general Manager title carried in the filing.

The remaining named officers in the filing, S Roeloffzon, Michael Caufield and Amanda Weber, could not be independently verified against Alcoa Corporation’s public leadership disclosures, so no additional detail beyond the registry record is added for them.

Nationality and country of residence are not disclosed in this filing, consistent with Pennsylvania’s business registry generally, which does not publish this information. Any correspondence address shown in the underlying filing is a service address for official communications; it is not a home address and is not used here to infer nationality or residence. Because the filing carries no appointment date, its currency cannot be confirmed directly, and the mismatch between Mr Oplinger’s filed title and his current, publicly disclosed role suggests the underlying officer record may predate his 2023 appointment as President and Chief Executive Officer.

Alcoa Corporation sits at the top of its own corporate group: no immediate or ultimate parent company is disclosed for the entity, consistent with its status as a New York Stock Exchange-listed public company. Beneath it sits a global network of subsidiaries engaged in bauxite mining, alumina refining and aluminum production, spanning the United States, the Netherlands, Australia, Brazil, Canada and other jurisdictions.

The most significant verified recent change to this structure is Alcoa Corporation’s acquisition of Alumina Limited, a company formerly listed on the Australian Securities Exchange. Alcoa Corporation completed this all-stock acquisition on 1 August 2024 through its wholly owned subsidiary, AAC Investments Australia 2 Pty Ltd. The transaction gave Alcoa Corporation full ownership of the Alcoa World Alumina and Chemicals (AWAC) joint venture, in which it had previously held a 60 percent interest, with Alumina Limited holding the remaining 40 percent. AWAC’s affiliated entities own or operate bauxite mines and alumina refineries in Australia, Brazil, Spain, Saudi Arabia and Guinea, and hold a 55 percent interest in an aluminum smelter in Victoria, Australia. Following completion, Alcoa Corporation established a secondary listing on the Australian Securities Exchange under the ticker AAI.

Other entities recorded beneath Alcoa Corporation reflect its long-standing upstream aluminum operations, including Netherlands-based holding companies such as Alcoa Nederland Holding B.V. and Alcoa Global Holding B.V., and operating subsidiaries such as Alcoa World Alumina LLC and Alcoa of Australia Limited. One entity appearing in the underlying corporate-linkage data, Howmet South Africa (Pty) Ltd, could not be verified as a current subsidiary of Alcoa Corporation: Howmet Aerospace is a separately listed company, trading as NYSE: HWM, that has operated independently of Alcoa Corporation since the 2016 corporate separation, and no official source confirms an ownership link between the two companies today. That entity has been excluded from the verified relationships below.

The corporate-linkage information available for Alcoa Corporation is partial: it captures a large number of subsidiaries and holding companies but does not disclose ownership or voting percentages for most entities, and, as noted above, includes at least one entity that could not be independently verified. The entities related to the Alumina Limited acquisition are corroborated by Alcoa Corporation’s own August 2024 completion announcement and related U.S. securities filings.