Millennium Management’s CoStar Group CSGP Stock Holding History

Millennium Management’s Portfolio CSGP Stock Details CSGP Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.61M	Sell	40,000 -83,100	-68%	-$4.33M	﹤0.01%	4058
2025 Q4	$8.28M	Sell	123,100 -30,600	-20%	-$2.17M	﹤0.01%	2465
2025 Q3	$13M	Sell	153,700 -41,900	-21%	-$3.7M	0.01%	2119
2025 Q2	$15.7M	Sell	195,600 -40,400	-17%	-$3.15M	0.01%	1818
2025 Q1	$18.7M	Buy	236,000 +168,400	+249%	+$12.8M	0.01%	1592
2024 Q4	$4.84M	Buy	67,600 +58,900	+677%	+$4.45M	﹤0.01%	2847
2024 Q3	$656K	Buy	8,700 +4,700	+118%	+$356K	﹤0.01%	4607
2024 Q2	$297K	Sell	4,000 -105,400	-96%	-$8.93M	﹤0.01%	4918
2024 Q1	$10.6M	Sell	109,400 -195,200	-64%	-$16.8M	﹤0.01%	2134
2023 Q4	$26.6M	Buy	304,600 +2,400	+0.8%	+$194K	0.01%	1300
2023 Q3	$23.2M	Sell	302,200 -124,400	-29%	-$10.3M	0.01%	1303
2023 Q2	$38M	Buy	426,600 +389,000	+1,035%	+$30M	0.02%	921
2023 Q1	$2.59M	Buy	37,600 +3,100	+9%	+$229K	﹤0.01%	3187
2022 Q4	$2.67M	Buy	+34,500	New	+$2.7M	﹤0.01%	3322
2014 Q2	–	Sell	-24,000	Closed	-$448K	–	3470
2014 Q1	$448K	Buy	+24,000	New	+$453K	﹤0.01%	2688

Other funds holding CSGP

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return

BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return

Polen Capital Management Boca Raton, Florida $14.5B AUM 5.7% 1-Year Est. Return

Millennium Management's CSGP Position: Q1 2026 in Review

Millennium Management reduced its CoStar Group (CSGP) stake by 79% in Q1 2026, selling an estimated $24.9M and leaving 123,590 shares worth $4.99M. The position accounts for ﹤0.01% of the portfolio, ranked #2953.

Millennium Management first reported a position in CSGP in Q2 2013 and has held it in 51 quarters since. The position peaked at $160M in Q1 2021. 792 funds tracked by Wall St. Rank hold CSGP as of Q1 2026.

Millennium Management held 123,590 shares of CoStar Group worth $4.99M as of Q1 2026.
Millennium Management sold 478,385 CoStar Group shares in Q1 2026, an estimated $24.9M.
CoStar Group made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #2953 holding.
Millennium Management first reported a position in CoStar Group in Q2 2013 and has held it in 51 quarters since.
Millennium Management's CoStar Group position peaked at $160M in Q1 2021.
792 funds tracked by Wall St. Rank held CoStar Group as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.