STETZ MATTIAS (Chief Operating Officer) sold 70K shares of RUSH STREET INTERACTIVE, INC. on the open market

Open‑market sale worth $1.85M. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales

STETZ MATTIAS

Filed: 4/29/2026ACC: 0001835040-26-000017

InsiderSTETZ MATTIASCIK 1835040

→

IssuerRUSH STREET INTERACTIVE, INC.CIK 1793659

Officer· Chief Operating Officer

Since Dec 2020

-120K

Net shares

Net seller

$1.85M

Total sold

Open market trades

0B · 2S

Total transactions

50K acquired · 170K disposed

Non-Derivative Transactions4

Class A Common Stock

Indirect

S · Sale

−20K

Price / share

$24.06

Trade value

$481.12K

% of position

15.9%

4/27/2026

125.45K→105.45K

Class A Common Stock

Indirect

C · Conversion

+50K

Price / share

—

Trade value

—

% of position

New position

4/29/2026

0.00→50K

Class V Voting Stock

Indirect

D · Disposition

−50K

Price / share

—

Trade value

—

% of position

5.6%

4/29/2026

900K→850K

Class A Common Stock

Indirect

S · Sale

−50K

Price / share

$27.44

Trade value

$1.37M

% of position

New position

4/29/2026

50K→0.00

Total

Net shares

−70K

Net value

-$1.85M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Indirect	4/27/2026	S · Sale	−20K	$24.06	$481.12K	15.9%	125.45K	105.45K
Class A Common Stock Indirect	4/29/2026	C · Conversion	+50K	—	—	New position	0.00	50K
Class V Voting Stock Indirect	4/29/2026	D · Disposition	−50K	—	—	5.6%	900K	850K
Class A Common Stock Indirect	4/29/2026	S · Sale	−50K	$27.44	$1.37M	New position	50K	0.00
Total			−70K		-$1.85M

Derivative Transactions1

Class A Common Units of Rush Street Interactive, L.P.

Indirect

C · Conversion

Converts to

Class A Common Stock

50K shares

−50K

Strike price

Held after

850K

Exercisable

—

4/29/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class A Common Units of Rush Street Interactive, L.P. Indirect	Class A Common Stock50K shares	4/29/2026	C · Conversion	−50K		—	850K

Non-Derivative Holdings (Post-Transaction)2

Class V Voting Stock

Direct

Shares owned482.08K

Class A Common Stock

Direct

Shares owned237.87K

Total

719.95K direct719.95K

Security Title	Shares Owned	Ownership Type
Class V Voting Stock	482.08K	Direct
Class A Common Stock	237.87K	Direct
Total	719.95K	719.95K direct

Derivative Holdings (Post-Transaction)1

Class A Common Units of Rush Street Interactive, L.P.

Direct

Underlying security

Class A Common Stock

Underlying shares

482.08K

Shares owned

482.08K

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

482.08K

Owned

482.08K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Class A Common Units of Rush Street Interactive, L.P. Direct	Class A Common Stock		—	—	482.08K	482.08K
Total					482.08K	482.08K