2025 SIMON® Annual Report

Simon Property Group, Inc. Simon Property Group, L.P. Notes to Consolidated Financial Statements (Dollars in thousands, except share, per share, unit and per unit amounts and where indicated as in millions or billions)

appropriately consider counterparty creditworthiness in the valuations. Level 3 fair value inputs reflect our best estimate of inputs and assumptions market participants would use in pricing an asset or liability at the measurement date. The inputs are unobservable in the market and significant to the valuation estimate. We have no investments for which fair value is measured on a recurring basis using Level 3 inputs. We have equity instruments with readily determinable fair values that are valued using Level 1 inputs. We have foreign currency forward contracts, interest rate cap and swap agreements, that are valued using Level 2 inputs. We also have a bifurcated embedded derivative option that was a component of the €750.0 million exchangeable bonds issued in November 2023. This instrument is classified as primarily having Level 3 inputs and is further discussed in Note 3, within the Derivative Financial Instruments subsection and Note 7.

Significant Other Observable Inputs (Level 2)

Significant Other Unobservable Inputs (Level 3)

Quoted Prices in Active Markets (Level 1)

Description

December 31, 2025

Assets: Deferred costs and other assets .. $ Liabilities: Other Liabilities ................ $

36,348 $

33,687 $

2,661 $

-

218,372 $

- $

13,259 $

205,113

Quoted Prices in Active Markets (Level 1)

Significant Other Unobservable Inputs (Level 3)

Significant Other Observable Inputs (Level 2)

Description

December 31, 2024

Assets: Deferred costs and other assets .. $ Liabilities: Other Liabilities ................ $

110,897 $

89,871 $

21,026 $

-

62,109 $

- $

2,136 $

59,973

Note 7 includes a discussion of the fair value of debt measured using Level 2 inputs. Notes 3, 4, and 6 include discussions of the fair values recorded in purchase accounting using Level 2 and Level 3 inputs. Level 3 inputs to our purchase accounting and impairment analyses include our estimations of fair value, based primarily on net operating results of the property and capitalization rates. Gains or losses on Issuances of Stock by Equity Method Investees When one of our equity method investees issues additional shares to third parties, our percentage ownership interest in the investee may decrease. In the event the issuance price per share is higher or lower than our average carrying amount per share, we recognize a noncash gain or loss on the issuance, when appropriate. This noncash gain or loss is recognized in our net income in the period the change of ownership interest occurs. Use of Estimates We prepared the accompanying consolidated financial statements in accordance with accounting principles generally accepted in the United States, or GAAP. GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and revenues and expenses during the reported period. Our actual results could differ from these estimates.

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