X0508 4 2025-12-17 0 0000912593 SUN COMMUNITIES INC SUI 0001171077 SHIFFMAN GARY A 27777 FRANKLIN ROAD SUITE 300 SOUTHFIELD MI 48034 1 0 0 0 0 COMMON STOCK, $0.01 PAR VALUE 2025-12-17 4 S 0 156875 123.53 D 0 I Owned by irrevocable trust. COMMON STOCK, $0.01 PAR VALUE 881175 D COMMON STOCK, $0.01 PAR VALUE 6278 I Owned by spouse COMMON STOCK, $0.01 PAR VALUE 86800 I Owned by irrevocable trust. This transaction represents the sale of Common Stock of the Issuer in a private transaction by an irrevocable trust of which the Reporting Person is a trustee and a beneficiary to certain beneficiaries of this trust other than the Reporting Person. The Reporting Person disclaims beneficial ownership of the securities held by the trust except to the extent of his pecuniary interest therein. This transaction was completed for tax planning purposes. Owned by an irrevocable trust of which the Reporting Person is a trustee and a beneficiary. The Reporting Person disclaims beneficial ownership of the securities held by the trust except to the extent of his pecuniary interest therein. Gary A. Shiffman 2025-12-18