Alcoa Corporation filed its quarterly report on Form 10-Q with the SEC on October 29, 2026, covering the fiscal quarter ended September 30, 2026, and disclosing key financial and operational information for the period.

Key Highlights

  • Share count: As of October 26, 2026, 263,969,874 shares of Common Stock, par value $0.01 per share, were outstanding, according to the filing.
  • Exchange listing: Alcoa Corporation's common stock trades on the New York Stock Exchange under the symbol AA (NYSE:AA).
  • Large accelerated filer: The registrant is classified as a large accelerated filer, as indicated on the cover page of the filing.
  • Proposed transaction disclosed: The filing references a proposed transaction to acquire South32 Limited's equity interests in certain bauxite, alumina, and aluminum assets.
  • Secondary listing noted: The filing references a secondary listing of Alcoa common stock on the Australian Securities Exchange as a factor that could affect stockholder ownership dilution and share price.
  • Headquarters: The registrant's principal executive offices are located at 201 Isabella Street, Suite 500, Pittsburgh, Pennsylvania 15212-5858.

Alcoa's September 2026 Quarterly Disclosure: Transaction, Risks, and Share Count

Alcoa Corporation (NYSE:AA) submitted its Form 10-Q for the quarterly period ended September 30, 2026, filed on October 29, 2026. The cover page confirmed that 263,969,874 shares of Common Stock, par value $0.01 per share, were outstanding as of October 26, 2026. The company is incorporated in Delaware, holds Commission File Number 1-37816, and its principal offices remain at 201 Isabella Street, Suite 500, Pittsburgh, Pennsylvania.

A notable element of this filing is the disclosure of a proposed transaction in which Alcoa intends to acquire South32 Limited's equity interests in certain bauxite, alumina, and aluminum assets. According to the filing, forward-looking statements related to the transaction include references to "anticipated synergies and earnings per share and free cash flow accretion" and "the competitive ability and position following completion of the Transaction." The filing cautions that these are the company's own forward-looking statements, subject to its cautionary language, and that "actual results may differ materially from those indicated by these forward-looking statements due to a variety of risks and uncertainties."

Among the risk factors cited in the filing are volatility in aluminum and alumina pricing linked to the London Metal Exchange, fluctuations in foreign currency exchange rates, rising energy costs, legal proceedings, changes in tax laws, and disruptions in the global economy caused by ongoing regional conflicts and wars. The filing also flags potential dilution of stockholder ownership positions as a result of the proposed transaction and the secondary listing of Alcoa common stock on the Australian Securities Exchange.

What Was Disclosed

Alcoa Corporation filed its Q3 2026 Form 10-Q covering the period ended September 30, 2026, reporting 263,969,874 shares outstanding as of October 26, 2026, and disclosing a proposed acquisition of South32 Limited's equity interests in bauxite, alumina, and aluminum assets, along with associated risk factors.