Vanguard Portfolio Management LLC filed an amended beneficial ownership statement with the SEC on October 30, 2026, disclosing a 4.98% stake in Brandywine Realty Trust common stock as of September 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: Vanguard Portfolio Management reported beneficial ownership of 8,700,286 shares of Brandywine Realty Trust common stock.
  • Percent of class: The 8,700,286 shares represent 4.98% of the outstanding class, as disclosed in the filing.
  • Sole dispositive power: Vanguard Portfolio Management holds sole power to dispose of all 8,700,286 shares reported.
  • Sole voting power: Sole voting power is reported for only 70,330 shares, with shared voting power listed as 0.
  • Triggering date: The event requiring this amended filing occurred on September 30, 2026.
  • Affiliates included: The filing covers securities also attributable to Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC, as affiliates or business divisions.

Vanguard Portfolio Management's Amended Stake in Brandywine Realty Trust

According to the filing, Vanguard Portfolio Management LLC, organized in Pennsylvania and classified as an investment adviser, submitted this amendment to report its ownership of Brandywine Realty Trust (NYSE:BDN) common stock as of September 30, 2026. Brandywine Realty Trust is a real estate investment trust headquartered at 555 East Lancaster Avenue, Suite 100, Radnor, PA 19087. The filing is classified as Amendment No. 1 to a prior beneficial ownership statement.

The filing discloses that Vanguard Portfolio Management holds sole dispositive power over all 8,700,286 shares reported, while sole voting power is limited to 70,330 shares. Shared voting power and shared dispositive power are each reported as zero. The filing notes that the reported position falls at ownership of 5 percent or less of the class, satisfying the threshold identified under Item 5 of the form.

The filing states that the covered securities include shares held by Vanguard funds or sleeves thereof, as well as securities held by clients for which affiliates including Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC exercise dispositive and/or voting power. The filing further states that no single other person's interest in the reported securities exceeds 5%, and that the securities "were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer." The document was signed by My Trieu-Gatt, Authorized Signatory and Head of Global Fund Administration, on October 30, 2026.

What Was Disclosed

Vanguard Portfolio Management LLC reported beneficial ownership of 8,700,286 shares of Brandywine Realty Trust common stock, equal to 4.98% of the class, with sole dispositive power over all shares and sole voting power over 70,330 shares, based on a September 30, 2026 triggering event.