WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

Position in RSI — Rush Street Interactive, Inc.

CIK 1644956 CHICAGO, IL

Position in RSI

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$48,646,729

-$2,053,543 QoQ

Shares Held

1,635,734

-29.8% QoQ

Ownership

0.706%

of shares outstanding

% of Portfolio

0.15%

of 13F equity value

Holder Rank

#23

of 304 holders

Holding Since

Sep 2020

16 quarters on record

Voting authority Sole 77% Shared 0% None 23%

Consumer Cyclical · as of Jun 30, 2026

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds $140,986,775 across 2 Gambling names. RSI ranks #2 (34.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	CHDN	Churchill Downs Inc	1,030,121	$92,340,046
2	RSI	Rush Street Interactive, Inc. This page	1,635,734	$48,646,729

16 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$48,646,729	1,635,734	-29.8%	Shares	Sole	2026-08-12
2026-03-31	$50,700,272	2,331,047	-8.9%	Shares	Sole	2026-05-08
2025-12-31	$49,697,626	2,557,778	+17.3%	Shares	Sole	2026-02-09
2025-09-30	$44,641,812	2,179,776	-18.5%	Shares	Sole	2025-11-12
2025-06-30	$39,866,454	2,675,601	+4.8%	Shares	Sole	2025-07-29
2025-03-31	$27,374,688	2,553,609	+61.9%	Shares	Sole	2025-05-09
2024-12-31	$21,635,040	1,576,898	+7.4%	Shares	Sole	2025-02-10
2022-09-30	$5,401,754	1,467,868	+5.4%	Shares	Sole	2022-11-09
2022-06-30	$6,505,179	1,392,972	+9.0%	Shares	Sole	2022-08-10
2022-03-31	$9,289,620	1,277,802	-1.3%	Shares	Sole	2022-05-11
2021-12-31	$21,357,798	1,294,412	-8.6%	Shares	Sole	2022-02-14
2021-09-30	$27,202,916	1,416,081	-30.9%	Shares	Sole	2021-11-10
2021-06-30	$25,114,021	2,048,452	+1.6%	Shares	Sole	2021-08-12
2021-03-31	$32,941,799	2,016,022	+5.8%	Shares	Sole	2021-05-13
2020-12-31	$41,249,485	1,905,288	—	Shares	Sole	2021-02-09
2020-09-30 DMYT	—	1,354,359	—	Shares	Sole	2020-11-06
No filing history on record for this holder in this stock.