(Mark One) | | | For the quarterly period ended March 31, 2026 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-41781 SEZZLE INC. (Exact name of registrant as specified in its charter) Delaware 81-0971660 (State or other jurisdiction of incorporation or organization) 700 Nicollet Mall, Suite 640, Minneapolis, Minnesota 554 ...