X0508 4 2026-01-22 0000790816 BRANDYWINE REALTY TRUST BDN 0000944673 SWEENEY GERARD H 2929 ARCH STREET SUITE 1800 PHILADELPHIA PA 19104 true true false false President and CEO false Common Shares of Beneficial Interest 2026-01-22 4 A false 220772 0 A 3266793 D Common Shares of Beneficial Interest 2026-01-23 4 F false 9432 3.03 A 3257361 D Common Shares of Beneficial Interest 2026-01-22 4 A false 310460 0 A 3567821 D Common Shares of Beneficial Interest 2026-01-23 4 F false 13923 3.03 D 3553898 D Reflect the number of common shares earned under the reporting person's 2023-2025 Restricted Performance Share Award. The filing also reports the 3,811 additional common shares acquired under the Company's Employee Share Purchase Plan (ESPP). The ESPP shares were purchased following the reporting person's last Section 16 filing. Under the ESPP, 3,811 shares were acquired on December 23, 2025 at a transaction price of $3.28. Reflects common shares withheld to satisfy payroll taxes upon delivery of common shares under the reporting person's 2023-2025 Restricted Performance Share Unit Award. Reflects the number of common shares earned under the reporting person's outperformance element under the 2023-2025 Restricted Share Unit Award. Reflects common shares withheld from restricted stock units settled under the outperformance element of the reporting person's 2022-2024 and 2023-2025 Restricted Share Unit awards to satsify payroll taxes. /s/ Gerard H. Sweeney 2026-01-26