EXHIBIT 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Simon Property Group, Inc. (the “Company”) on Form 10-Q for the period ended June 30, 2025 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ DAVID SIMON
David Simon
Chairman of the Board of Directors,
Chief Executive Officer and President
Date: August 7, 2025


/s/ Brian J. McDade
Brian J. McDade
Executive Vice President and Chief Financial
Officer
Date: August 7, 2025

SIMON PROPERTY GROUP INC /DE/ 10-Q