2025 SIMON® Annual Report

minimum rent per square foot is the average base minimum rent charge in effect for the reporting period for all tenants that would qualify to be included in ending occupancy. Current Leasing Activities During the twelve months ended December 31, 2025, we signed 1,112 new leases and 2,035 renewal leases (excluding recent acquisitions, mall anchors and majors, new development, redevelopment and leases with terms of one year or less) with a fixed minimum rent across our U.S. Malls and Premium Outlets portfolio, comprising approximately 11.4 million square feet, of which 8.8 million square feet related to consolidated properties. During the comparable period in 2024, we signed 1,149 new leases and 2,549 renewal leases with a fixed minimum rent, comprising approximately 13.5 million square feet, of which 10.4 million square feet related to consolidated properties. The average annual initial base minimum rent for new leases was $65.09 per square foot in 2025 and $66.61 per square foot in 2024 with an average tenant allowance on new leases of $63.92 per square foot and $60.33 per square foot, respectively. Japan Data The following are selected key operating statistics for our Premium Outlets in Japan. The information used to prepare these statistics has been supplied by the managing venture partner. December 31, %/basis point December 31, %/basis point December 31, 2025 Change 2024 Change 2023 EndingOccupancy.............. 99.9% +60 bps 99.3% -40 bps 99.7%

Average Base Minimum Rent per Square Foot .................

¥

5,581

1.27%

¥

5,511

0.31%

¥

5,494

Critical Accounting Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles, or GAAP, requires management to use judgment in the application of accounting policies, including making estimates and assumptions. We base our estimates on historical experience and on various other assumptions believed to be reasonable under the circumstances. These judgments affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. If our judgment or interpretation of the facts and circumstances relating to various transactions had been different, it is possible that different accounting policies would have been applied resulting in a different presentation of our financial statements. From time to time, we reevaluate our estimates and assumptions. In the event estimates or assumptions prove to be different from actual results, adjustments are made in subsequent periods to reflect more current information. Below is a discussion of accounting policies that we consider critical in that they may require complex judgment in their application or require estimates about matters that are inherently uncertain. For a summary of our significant accounting policies, see Note 3 of the notes to the consolidated financial statements. • We, as a lessor, primarily under long-term leases, retain substantially all of the risks and benefits of ownership of the investment properties and account for our leases as operating leases. We accrue fixed lease income on a straight-line basis over the terms of the leases, when we believe substantially all lease income, including the related straight-line rent receivable, is probable of collection. Our assessment of collectability, primarily under long-term leases, incorporates available operational performance measures such as reported sales and the aging of billed amounts as well as other publicly available information with respect to our tenant’s financial condition, liquidity and capital resources. When a tenant seeks to reorganize its operations through bankruptcy proceedings, we assess the collectability of receivable balances including, among other things, the timing of a tenant’s bankruptcy filing and our expectations of the assumption by the tenant in bankruptcy proceeding of leases at the Company’s properties on substantially similar terms. In the event that we determine accrued receivables are not probable of collection, lease income will be recorded on a cash basis, with the corresponding tenant receivable and straight-line rent receivable charged as a direct write-off against lease income in the period of the change in our collectability determination. • We review investment properties for impairment on a property-by-property basis to identify and evaluate events or changes in circumstances which indicate that the carrying value of investment properties may not be recoverable. These circumstances include, but are not limited to, changes in a property’s operational performance such as declining cash flows, occupancy or total reported sales per square foot, the Company’s intent and ability to hold the related asset, and, if applicable, the remaining time to maturity of underlying financing arrangements. We measure any impairment of investment property when the estimated undiscounted operating income before

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