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	$1.95M	Sell	48,400 -26,300	-35%	-$1.37M	﹤0.01%	3897
2025 Q4	$5.02M	Sell	74,700 -24,000	-24%	-$1.7M	﹤0.01%	3007
2025 Q3	$8.33M	Sell	98,700 -40,100	-29%	-$3.54M	﹤0.01%	2578
2025 Q2	$11.2M	Sell	138,800 -17,100	-11%	-$1.33M	0.01%	2151
2025 Q1	$12.4M	Buy	155,900 +148,900	+2,127%	+$11.3M	0.01%	1966
2024 Q4	$501K	Sell	7,000 -2,700	-28%	-$204K	﹤0.01%	4748
2024 Q3	$732K	Buy	9,700 +3,300	+52%	+$250K	﹤0.01%	4523
2024 Q2	$474K	Sell	6,400 -119,100	-95%	-$10.1M	﹤0.01%	4624
2024 Q1	$12.1M	Buy	125,500 +121,400	+2,961%	+$10.5M	0.01%	2008
2023 Q4	$358K	Buy	+4,100	New	+$332K	﹤0.01%	4850
2023 Q3	–	Sell	-250,900	Closed	-$22.3M	–	6189
2023 Q2	$22.3M	Buy	250,900 +238,900	+1,991%	+$18.4M	0.01%	1292
2023 Q1	$826K	Buy	12,000 +900	+8%	+$66.4K	﹤0.01%	4269
2022 Q4	$858K	Buy	+11,100	New	+$867K	﹤0.01%	4315
2014 Q2	–	Sell	-31,000	Closed	-$579K	–	3469
2014 Q1	$579K	Buy	+31,000	New	+$585K	﹤0.01%	2534

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.