Tremblant Capital Group’s CoStar Group CSGP Stock Holding History

Tremblant Capital Group’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	$60.8M	Sell	1,506,031 -129,933	-8%	-$6.76M	1.96%	25
2025 Q4	$110M	Buy	1,635,964 +1,410,036	+624%	+$99.9M	2.81%	9
2025 Q3	$19.1M	Buy	225,928 +26,047	+13%	+$2.3M	1.97%	23
2025 Q2	$16.1M	Buy	199,881 +103,252	+107%	+$8.04M	1.55%	27
2025 Q1	$7.66M	Sell	96,629 -77,239	-44%	-$5.88M	0.86%	33
2024 Q4	$12.4M	Buy	+173,868	New	+$13.1M	1.29%	31

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

Tremblant Capital Group's CSGP Position: Q1 2026 in Review

Tremblant Capital Group reduced its CoStar Group (CSGP) stake by 7.9% in Q1 2026, selling an estimated $6.76M and leaving 1,506,031 shares worth $60.8M. The position accounts for 1.96% of the portfolio, ranked #25.

Tremblant Capital Group first reported a position in CSGP in Q4 2024 and has held it in 6 quarters since. The position peaked at $110M in Q4 2025. 793 funds tracked by Wall St. Rank hold CSGP as of Q1 2026.

Tremblant Capital Group held 1,506,031 shares of CoStar Group worth $60.8M as of Q1 2026.
Tremblant Capital Group sold 129,933 CoStar Group shares in Q1 2026, an estimated $6.76M.
CoStar Group made up 1.96% of Tremblant Capital Group's portfolio in Q1 2026, its #25 holding.
Tremblant Capital Group first reported a position in CoStar Group in Q4 2024 and has held it in 6 quarters since.
Tremblant Capital Group's CoStar Group position peaked at $110M in Q4 2025.
793 funds tracked by Wall St. Rank held CoStar Group as of Q1 2026.

Based on Tremblant Capital Group's 13F filing for Q1 2026, filed 15 May 2026.