ROPER INVENTORY SERVICE

pants’ contributions and related investment earnings become vested at the time they are credited to the participants’ accounts. In addition, employees vest immediately in employer-matching contributions. Discretionary profit-sharing contributions vest according to the following schedule: ​ ​ ​ ​ ​ Years of Vesting Service ​ ​ ​ Percentage Vested and Non-forfeitable ​ Less than 2 — % ​ ​ ​ ​ 2 20 ​ ​ ​ ​ ​ 3 40 ​ ​ ​ ​ ​ 4 60 ​ ​ ​ ​ ​ 5 80 ​ ​ ​ ​ ​ 6 or more 100 ​ ​ Payment of Benefits Upon separation from service with the Company due to death, disability, retirement or termination, a participant, or their beneficiary whose vested account balance exceeds $ 5,000 may elect to receive either a lump sum or may elect installment payments. A participant whose vested account balance is $ 5,000

ccounts. In addition, employees vest immediately in employer-matching contributions. Discretionary profit-sharing contributions vest according to the following schedule: ​ ​ ​ ​ ​ Years of Vesting Service ​ ​ ​ Percentage Vested and Non-forfeitable ​ Less than 2 — % ​ ​ ​ ​ 2 20 ​ ​ ​ ​ ​ 3 40 ​ ​ ​ ​ ​ 4 60 ​ ​ ​ ​ ​ 5 80 ​ ​ ​ ​ ​ 6 or more 100 ​ ​ Payment of Benefits Upon separation from service with the Company due to death, disability, retirement or termination, a participant, or their beneficiary whose vested account balance exceeds $ 5,000 may elect to receive either a lump sum or may elect installment payments. A participant whose vested account balance is $ 5,000 or less and has not commenced receiving installment payments will automatically receive an immediate lump-sum distribut

ion of 60 days of active employment and upon reaching age 21 . Each year, participants may contribute from 1 % to 50 % of their before-tax compensation, as defined in the Plan. If automatically enrolled, a participant’s deferral is set at 3 % of his or her eligible compensation and will increase 1 % annually, with a maximum automatic contribution of 10 % of eligible compensation, unless changed by the participant. Contributions are subject to maximum limitations, as defined in the Internal Revenue Code (the Code). Employer Contributions For the purpose of receiving the employer match and any discretionary employer contribution, an employee becomes eligible on the first day of the month coincident with or following completion of one year of eligible service (at least 1,000 hours of employme

5,332 Interest and dividends ​ 2,038,216 Net appreciation in fair value of investments ​ 94,692,747 Total additions ​ 139,418,393 ​ ​ ​ ​ Deductions ​ ​ Benefits paid ​ 61,814,920 Administrative expenses ​ 880,264 Total deductions ​ 62,695,184 ​ ​ ​ ​ Net increase ​ 76,723,209 ​ ​ ​ ​ Net assets available for benefits: ​ ​ Beginning of year ​ 597,638,417 End of year ​ $ 674,361,626 ​ See accompanying notes. ​ 6 Table of Contents Simon Property Group and Adopting Entities Matching Savings Plan Notes to Financial Statements December 31, 2025 1. Description of the Plan The following description of the Simon Property Group and Adopting Entities Matching Savings Plan (the Plan) provides general information about the Plan’s provisions. Simon Property Group, L.P. and affiliated companies (the Emp