X0508 4 2026-01-06 0 0001793659 Rush Street Interactive, Inc. RSI 0001835040 STETZ MATTIAS C/O RUSH STREET INTERACTIVE, INC. 900 N. MICHIGAN AVENUE, SUITE 950 CHICAGO IL 60611 0 1 0 0 Chief Operating Officer 0 Class A Common Stock 2026-01-06 4 A 0 296692 19.77 A 441498 D Class A Common Stock 2026-01-06 4 F 0 131874 19.77 D 309624 D Class A Common Stock 165448 I By Spouse Represents the aggregate number of shares acquired by the Reporting Person upon the vesting and settlement of Performance Stock Units ("PSUs") originally granted to the Reporting Person on March 15, 2023, the vesting of which was subject to the achievement of certain performance criteria. Represents shares withheld to cover withholding taxes due upon settlement of the PSUs originally granted to the Reporting Person on March 15, 2023. /s/ Kyle Sauers as Attorney-in-fact 2026-01-08