X0508 4 2026-03-14 0 0001793659 Rush Street Interactive, Inc. RSI 0001588894 Sauers Kyle C/O RUSH STREET INTERACTIVE, INC. 900 N. MICHIGAN AVENUE, SUITE 950 CHICAGO IL 60611 0 1 0 1 Chief Financial Officer President 0 Class A Common Stock 2026-03-14 4 A 0 103578 0 A 743884 D Class A Common Stock 2026-03-16 4 F 0 43626 20.25 D 700258 D Class A Common Stock 4700 I By Child On March 14, 2026, the Reporting Person was awarded 103,578 restricted stock units (the "RSUs") under the Rush Street Interactive, Inc. 2020 Omnibus Equity Incentive Plan, as amended. The RSUs vest in three equal annual installments beginning on the first anniversary of the grant date, subject to the Reporting Person's continued service through each such vesting date. Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of the Reporting Person's previously disclosed RSUs and does not represent a sale by the Reporting Person. /s/ Kyle Sauers 2026-03-17