UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023. or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 SUN COMMUNITIES, INC. (Exact Name of Registrant as Specified in its Charter) Maryland 1-12616 38-2730780 (State of Incorporation) Commission file number (I.R.S. Employer Identification No.) 27777 Fran ...