Vanguard Portfolio Management LLC filed a Schedule 13G with the SEC on October 30, 2026, disclosing beneficial ownership of 13,325,566 shares of Alcoa Corp common stock as of September 30, 2026, representing 5.04% of the class.

Key Highlights

  • Aggregate beneficial ownership: Vanguard Portfolio Management reported 13,325,566 shares of Alcoa Corp common stock beneficially owned.
  • Percent of class: The reported position represents 5.04% of Alcoa Corp's outstanding common stock.
  • Sole dispositive power: Vanguard Portfolio Management holds sole power to dispose of all 13,325,566 shares reported.
  • Sole voting power: Sole voting power is reported over only 36,012 shares, with shared voting power of zero.
  • Event date: The filing is based on a triggering event date of September 30, 2026.
  • Filing entity type: Vanguard Portfolio Management is identified as an investment adviser (type "IA"), organized in Pennsylvania.

Vanguard Portfolio Management's Disclosed Stake in Alcoa Corp

According to the Schedule 13G filed on October 30, 2026, Vanguard Portfolio Management LLC, headquartered at 100 Vanguard Blvd, Malvern, PA 19355, reported beneficial ownership of 13,325,566 shares of Alcoa Corp (CUSIP 013872106) common stock. The filing states that this ownership represents 5.04% of the class, based on an event date of September 30, 2026. Alcoa Corp is identified in the filing as issuer, with principal executive offices at 201 Isabella Street, Suite 500, Pittsburgh, PA 15212.

The filing discloses that Vanguard Portfolio Management holds sole dispositive power over the full 13,325,566 shares, while sole voting power is limited to 36,012 shares. Shared voting power and shared dispositive power are both reported as zero. The filing notes that it reflects securities beneficially owned, or deemed to be beneficially owned, by Vanguard Portfolio Management LLC and affiliates including Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC, in accordance with SEC Release No. 34-39538 (January 12, 1998).

The filing further states, according to Item 6, that "Vanguard Portfolio Management, including investment companies registered under the Investment Company Act of 1940 and other managed accounts, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein," and that no single other person's interest in the reported securities exceeds 5%. The statement was signed by My Trieu-Gatt, identified as Authorized Signatory, Head of Global Fund Administration, on October 30, 2026.

What Was Disclosed

Vanguard Portfolio Management LLC filed a Schedule 13G disclosing a 5.04% beneficial ownership stake, totaling 13,325,566 shares, in Alcoa Corp common stock as of September 30, 2026, with sole dispositive power over all reported shares and sole voting power over 36,012 shares.