BRANDYWINE OPERATING PARTNERSHIP, L.P.

Property Statistics

The following table sets forth information with respect to our Core Properties at December 31, 2025:

Net Rentable Square Feet · % Occupied

PHILADELPHIA CENTRAL BUSINESS DISTRICT SEGMENT

Cira Center · 730,187 · 94.2

1717 Arch Street · 1,029,413 · 93.2

130 North 18th Street · 595,041 · 90.0

100 North 18th Street · 708,844 · 97.3

1900 Market Street · 456,922 · 94.4

3020 Market Street · 190,925 · 89.2

3000 Market Street · 90,556 · 100.0

618 Market Street (a) · 15,878 · 74.6

FMC Tower at Cira Center South (a) · 625,863 · 98.2

The Bulletin Building (a) · 282,709 · 100.0

2930 Chestnut Street (a) · 9,788 · 100.0

PHILADELPHIA CENTRAL BUSINESS DISTRICT SEGMENT SUBTOTAL · 4,736,126 · 94.7

PENNSYLVANIA SUBURBS SEGMENT

Six Tower Bridge · 116,174 · 41.6

426 West Lancaster Avenue · 55,941 · 100.0

640 Freedom Business Center · 132,000 · 89.5

620 Freedom Business Center · 86,570 · 100.0

1000 First Avenue · 74,139 · 94.5

1060 First Avenue · 77,718 · 100.0

630 Freedom Business Center · 86,683 · 93.6

1020 First Avenue · 74,556 · 100.0

1040 First Avenue · 75,488 · 100.0

610 Freedom Business Center · 62,991 · 57.1

600 Park Avenue · 39,000 · 100.0

933 First Avenue · 111,053 · 100.0

500 North Gulph Road · 100,820 · 100.0

401 Plymouth Road · 204,186 · 64.0

Metroplex I · 120,877 · 95.7

150 Radnor Chester Road · 340,380 · 100.0

One Radnor Corporate Center · 201,874 · 100.0

201 King of Prussia Road · 251,434 · 95.2

555 Lancaster Avenue · 241,687 · 96.2

Four Radnor Corporate Center · 164,464 · 60.0

Five Radnor Corporate Center · 164,505 · 80.3

Three Radnor Corporate Center · 119,087 · 54.2

Two Radnor Corporate Center · 97,576 · 86.3

130 Radnor Chester Road · 71,349 · 100.0

170 Radnor Chester Road · 68,143 · 100.0

155 King of Prussia Road · 144,685 · 100.0

101 West Elm Street · 173,827 · 67.2

1 West Elm Street · 97,737 · 100.0

PENNSYLVANIA SUBURBS SEGMENT SUBTOTAL · 3,554,944 · 87.6

AUSTIN SEGMENT

401-405 Colorado Street · 205,803 · 100.0

Broadmoor Austin - Bldg 1 · 202,850 · 100.0

Broadmoor Austin - Bldg 3 · 198,306 · 100.0

Broadmoor Austin - Bldg 4 · 142,386 · 100.0

Broadmoor Austin - Bldg 6 · 144,249 · 100.0

Four Points Center 3 · 164,818 · 100.0

Four Points Centre · 192,396 · 20.7

River Place - Bldg 1 · 76,529 · 28.3

River Place - Bldg 2 · 114,491 · 26.9

River Place - Bldg 3 · 113,465 · 27.1

River Place - Bldg 4 · 87,639 · 10.0

River Place - Bldg 5 · 67,601 · 75.2

River Place - Bldg 6 · 62,038 · 100.0

River Place - Bldg 7 · 69,119 · 84.9

AUSTIN SEGMENT SUBTOTAL · 1,841,690 · 73.9

OTHER SEGMENT

6600 Rockledge Drive · 160,173 · 100.0

1676 International Drive · 299,387 · 74.0

8260 Greensboro Drive · 158,961 · 80.8

2340 Dulles Corner Boulevard · 268,365 · 91.8

Promenade at Main Street · 31,445 · 56.1

Piazza Offices at Main Street · 44,708 · 100.0

920 North King Street · 203,328 · 100.0

OTHER SEGMENT SUBTOTAL · 1,166,367 · 87.6

TOTAL CORE PORTFOLIO · 11,299,127 · 88.3

(a)These properties are mixed use properties

The following table shows lease expirations for the Core Properties as of December 31, 2025, during each of the next 10 years and thereafter. This table assumes no exercise of renewal options or termination rights:

Year of Lease Expiration December 31, · Rentable Square Feet (in thousands) · Final Annualized Base Rent Under Expiring Leases (a) (in thousands) · Percentage of Total Final Annualized Base Rent Under Expiring Leases

2026 · 589 · 25,136 · 5.5

2027 · 1,228 · 48,067 · 10.4

2028 · 1,130 · 45,756 · 9.9

2029 · 1,770 · 80,071 · 17.4

2030 · 879 · 39,410 · 8.6

2031 · 646 · 33,400 · 7.2

2032 · 610 · 32,220 · 7.0

2033 · 494 · 29,831 · 6.5

2034 · 1,251 · 68,314 · 14.8

2035 · 293 · 13,006 · 2.8

2036 and thereafter · 1,081 · 45,580 · 9.9

9,971 · 460,791 · 100

(a)Represents the annualized cash rental rate of base rents, including tenant reimbursements, in the final month prior to expiration. Tenant reimbursements generally include payment of a portion of real estate taxes, operating expenses, and common area maintenance and utility charges.

The following table shows the geographic locations for the Core Properties as of December 31, 2025. For more information about our geographic locations, see Note 18 “Segment Information” to our Consolidated Financial Statements:

Location · Number of Properties · Net Rentable Square Feet (in thousands) · Percentage Leased as of December 31, 2025 · Leased Square Feet (in thousands) · Total Base Rent (a) (in thousands) · Percentage of Base Rent

Philadelphia · 11 · 4,726 · 96.9 · 4,580 · 146,455 · 43.8

Pennsylvania Suburbs · 28 · 3,555 · 89.0 · 3,165 · 113,522 · 34.0

Austin · 14 · 1,842 · 73.9 · 1,362 · 38,162 · 11.4

Other · 7 · 1,166 · 92.6 · 1,080 · 35,977 · 10.8

60 · 11,289 · 90.2 · 10,187 · 334,116 · 100.0

• Acquired properties may subject us to known and unknown liabilities.
• We may be unable to renew leases or re-lease space as leases expire; certain leases may expire early.
• We face significant competition from other real estate developers.
• Property ownership through unconsolidated real estate ventures may limit our ability to act exclusively in our interest.
• Preferred equity, mezzanine loans, and other investments that are subordinated or otherwise junior in an issuer’s capital structure and that involve privately negotiated structures will expose us to greater risk of loss.
• Because real estate is illiquid, we may be unable to sell properties when in our best interest.
• We have agreed not to sell certain of our properties and to maintain indebtedness subject to guarantees.
• Our property taxes could increase due to property tax rate changes or reassessment, which would adversely impact our cash flows.
• The increased use of artificial intelligence (“AI ”) and automation may change the uses, space configurations and tenant requirements for certain of our properties in currently unforeseen ways.
• Regulatory Risk Factors
• Changes in tax rates and regulatory requirements may adversely affect our cash flow and results of operations.
• Potential liability for environmental contamination could result in substantial costs.
• Americans with Disabilities Act compliance could be costly.
• REIT Risk Factors
• Failure to qualify as a REIT would subject us to U.S. federal income tax which would reduce the cash available for distribution to our shareholders.
• Failure of the Operating Partnership (or a subsidiary partnership or unconsolidated real estate venture) to be treated as a partnership would have serious adverse consequences to our shareholders.
• If any subsidiary REIT failed to qualify as a REIT, we could be directly or indirectly subject to higher taxes and could fail to remain qualified as a REIT.
• To maintain our REIT status, we may be forced to borrow funds on a short-term basis during unfavorable market conditions.
• We may pay some taxes even if we qualify as a REIT, which will reduce the cash available for distribution to our shareholders.
• Partnership tax audit rules could have a material adverse effect on us.
• Legislative or regulatory tax changes related to REITs could materially and adversely affect our business.
• If a transaction intended to qualify as a Section 1031 Exchange is later determined to be taxable, or if we are unable to identify and complete the acquisition of suitable replacement property to effect a Section 1031 Exchange, we may face adverse consequences.
• Failure to obtain the tax benefits and remain compliant within Qualified Opportunity Zones and Keystone Opportunity Zones may have adverse consequences.
• Certain limitations will exist with respect to a third party’s ability to acquire us or effectuate a change in control.
• Limitations imposed to protect our REIT status.
• Limitation due to our ability to issue preferred shares.
• Advance Notice Provisions for Shareholder Nominations and Proposals.
• Disaster Risk Factors
• A pandemic, epidemic or outbreak of a contagious disease could adversely affect us.
• We face possible risks associated with the physical effects of climate change.
• General Risk Factors
• We are dependent upon our key personnel.
• Our ability to make distributions is subject to various risks.
• We face possible federal, state and local tax audits.
• Many factors can have an adverse effect on the market value of our securities.
• Additional issuances of equity securities may be dilutive to shareholders.
• The issuance of preferred securities may adversely affect the rights of holders of our common shares.
• A continued increase in interest rates would further increase our interest costs on variable rate debt and could adversely impact our ability to refinance existing debt or sell assets on favorable terms or at all.
• Our degree of leverage could limit our ability to obtain additional financing or affect the market price of our equity shares or debt securities.
• The terms and covenants relating to our indebtedness could adversely impact our economic performance.
• Certain of our mortgages include restrictive covenants and default provisions, which could limit our flexibility, limit our ability to sell the encumbered properties and require us to repay the indebtedness prior to its maturity.
• A downgrading of our debt could subject us to higher borrowing costs.
• Terrorist attacks and other acts of violence or war may adversely impact our performance and may affect the markets on which our securities are traded.
• Social, political and economic changes or instability, or other circumstances beyond our control could affect our business operations.
• Some potential losses are not covered by insurance.
• We have experienced, and may again experience, data security breach that may cause damage to our business and reputation.
• Failure of the U.S. federal government to manage its fiscal matters or to avoid a government shutdown may negatively impact the economic environment and adversely impact our results of operations.