Sezzle Inc.

Rule 10b5-1(c) and/or non-Rule 10b5-1 Trading Arrangements

During the quarter ended December 31, 2025, none of the officers (as defined in Exchange Act Rule 16a-1(f)) or directors of the Company adopted orterminated a “Rule 10b5-1 trading arrangement,” (as defined in Item 408(a) of Regulation S-K) intended to satisfy the affirmative defense conditions of Exchange Act Rule 10b5-1(c) or any non-Rule 10b5-1 trading arrangement, except as follows:

On November 18, 2025, Paul Paradis, the Company’s President, adopted a Rule 10b5-1 trading arrangement (the “Paradis Plan”) that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). The Paradis Plan provided for the potential sale of

of 132,000 shares of common stock of the Company, between a start date of February 18, 2026 until termination of the Paradis Plan on November 18, 2026, or earlier if all transactions under the Paradis Plan were completed. As of the date hereof, 26,400 shares have been sold under the Paradis Plan.

On November 25, 2025, Amin Sabzivand, the Company’s Chief Operating Officer, adopted a Rule 10b5-1 trading arrangement (the “Sabzivand Plan”) that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). The Sabzivand Plan provided for the potential sale of 67,930 shares of common stock of the Company, between a start date of March 10, 2026, until termination of the Sabzivand Plan on November 30, 2026, or earlier if all transactions under the Sabzivand Plan were completed. As of the date hereof, no shares of common stock have been sold under the Sabzivand Plan.

However, our directors and executive officers may adopt 10b5-1 Plans or non-Rule 10b5-1 trading arrangements in the future.