X0609 4 2026-06-03 0 0001793659 Rush Street Interactive, Inc. RSI 0001705859 Markell Jack A. false C/O RUSH STREET INTERACTIVE, INC. 900 N. MICHIGAN AVENUE, SUITE 950 CHICAGO IL 60611 1 0 0 0 0 Class A Common Stock 2026-06-03 4 F 0 3406 25.42 D 17383 D 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 restricted stock units and does not represent a sale by the Reporting Person. /s/ Kyle Sauers as Attorney-in-fact 2026-06-05