Vanguard Portfolio Management LLC filed a Schedule 13G with the SEC on October 30, 2026, disclosing beneficial ownership of 24,632,620 shares of Trade Desk Inc. common stock as of September 30, 2026, representing 5.77% of the class.

Key Highlights

  • Aggregate beneficial ownership: Vanguard Portfolio Management reported beneficial ownership of 24,632,620 shares of Trade Desk Inc. common stock.
  • Percent of class: The reported position represents 5.77% of the outstanding class of common stock.
  • Sole dispositive power: Vanguard Portfolio Management holds sole power to dispose of all 24,632,620 shares.
  • Sole voting power: Sole voting power is held over 260,968 shares; shared voting power is reported as 0.
  • Event date: The date of the event requiring this filing is September 30, 2026.
  • Filing affiliates included: The filing covers securities attributed to Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC, in addition to Vanguard Portfolio Management LLC itself.

Vanguard Portfolio Management's Schedule 13G Disclosure for Trade Desk Common Stock

According to the Schedule 13G filed October 30, 2026, Vanguard Portfolio Management LLC, organized in Pennsylvania and headquartered at 100 Vanguard Blvd., Malvern, PA 19355, reported that it beneficially owns 24,632,620 shares of common stock (CUSIP 88339J105) in Trade Desk Inc./The (NASDAQ:TTD), whose principal executive offices are located at 42 North Chestnut Street, Ventura, CA 93001. The filing was triggered by events as of September 30, 2026.

The filing states that Vanguard Portfolio Management holds sole dispositive power over all 24,632,620 shares, while sole voting power extends to only 260,968 shares. Shared voting power and shared dispositive power are each reported as 0. The filing notes, in accordance with SEC Release No. 34-39538, that it reflects securities beneficially owned by Vanguard Portfolio Management LLC and two affiliated entities: Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC. The statement also covers securities held by Vanguard funds, or sleeves thereof, over which Vanguard Portfolio Management LLC exercises dispositive power.

Under Item 6, the filing discloses 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 filing was signed by My Trieu-Gatt, identified as Authorized Signatory and Head of Global Fund Administration, who certified the information is true, complete, and correct.

What Was Disclosed

Vanguard Portfolio Management LLC reported a 5.77% beneficial ownership stake of 24,632,620 shares of Trade Desk Inc. common stock as of September 30, 2026, with sole dispositive power over all reported shares and sole voting power over 260,968 shares.