SPG: 8-K company filing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2026 SIMON PROPERTY GROUP, INC. (Exact name of registrant as specified in its charter) Indiana 001-14469 04-6268599 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 225 West Washington Street Indianapolis , Indiana 46204 (Address of principal executive offices) (Zip Code) Registrant’s telephone number, including area code: ( 317 ) 636-1600 Not Applicable (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol Name of each exchange on which registered Common stock, $0.0001 par value SPG New York Stock Exchange 8 3 / 8 % Series J Cumulative Redeemable Preferred Stock, $0.0001 par value SPGJ New York Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b- 2 of this chapte