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Costar Group, Inc.

CSGP
Exchange
Nasdaq
Industry
Services-Business Services, NEC
SEC CIK
0001057352

In the last 90 days, Costar Group, Inc. insiders filed 1 open-market purchase and 2 sales; 760 institutions reported holding it in 13F filings for Q2 2026, worth $11.7B in total; superinvestors Akre Capital Management and Weitz Investment Management hold it.

Q3 2025 vs. Q2 2025

How the institutions holding Costar Group, Inc. changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of CSGP: Q2 2025 compared with Q3 2025
MeasureQ2 2025Of which not filed for Q3 2025Q3 2025Change
Holders87314905+46
Shares424.8M5.57M413.6M−5.67M (−1.4%)
Value$34.2B$448.1M$34.9B+$1.15B (+3.4%)

14 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (107)

Institutions that held Costar Group, Inc. at the end of Q3 2025 but not at the end of Q2 2025.

Showing the largest 100 of 107 by value.

Institutions new to CSGP in Q3 2025
InstitutionSharesValue% of portfolio
Jupiter Asset Management Ltd383,230$32.3M0.28%
AXA Investment Managers S.A.370,740$31.3M0.08%
CIBC Bancorp USA Inc.185,242$15.6M0.09%
Acadian Asset Management LLC162,515$13.7M0.02%
Credit Agricole S A138,372$11.7M0.04%
Hood River Capital Management LLC138,064$11.6M0.14%
Y-Intercept (Hong Kong) Ltd118,260$9.98M0.24%
Jane Street Group, LLC115,631$9.76M0.01%
Los Angeles Capital Management LLC81,714$6.89M0.02%
Summit Wealth Group LLC110,820$4.75M0.65%
Archon Partners LLC54,000$4.56M0.48%
BCJ Capital Management, LLC45,221$3.82M0.23%
Kids Capital Management, L.P.40,000$3.37M2.67%
Caisse de Depot Et Placement du Quebec37,577$3.17M0.01%
Blue Capital, Inc.27,617$2.33M1.73%
First Financial Bankshares Inc23,511$1.98M0.04%
Shaker Investments LLC21,583$1.82M0.73%
Graham Capital Management, L.P.20,024$1.69M0.06%
Virtus Investment Advisers, Inc.19,623$1.66M0.47%
USA Financial Portformulas Corp18,757$1.58M0.28%
Main Management ETF Advisors, LLC17,050$1.44M0.05%
Allstate Corp16,098$1.36M0.03%
Davis Capital Management14,277$1.20M0.83%
Maridea Wealth Management LLC14,722$1.10M0.17%
Banque Cantonale Vaudoise12,671$1.07M0.04%
Nomura Holdings Inc11,250$949.2K0.00%
Groupama Asset Managment10,916$921.0K0.01%
CenterBook Partners LP10,808$911.9K0.05%
Magnetar Financial LLC9,878$833.4K0.01%
Ritholtz Wealth Management9,631$812.6K0.02%
Integrity Alliance, LLC.9,566$807.1K0.04%
Stratos Wealth Partners, LTD.9,318$786.2K0.01%
Walleye Trading LLC8,788$741.4K0.01%
CAPROCK Group, Inc.8,181$732.1K0.02%
Raiffeisen Bank International AG7,550$635.9K0.01%
Colony Capital, Inc.7,300$615.9K0.05%
Advisors Preferred, LLC7,377$615.8K0.09%
Virtu Financial LLC6,526$551.0K0.03%
Chesapeake Capital Corp6,194$522.6K0.47%
Tema ETFs LLC6,042$509.8K0.04%
AXS Investments LLC5,867$495.0K0.16%
Stevens Capital Management LP5,550$468.0K0.06%
Brookstone Capital Management5,495$463.6K0.01%
World Equity Group, Inc.5,096$429.9K0.10%
Highland Capital Management Fund Advisors, L.P.4,715$397.8K0.04%
Financial Consulate, Inc4,412$372.2K0.05%
Citizens Business Bank4,053$342.0K0.06%
Buckingham Strategic Partners4,957$339.7K0.00%
Rakuten Investment Management, Inc.10,056$332.4K0.00%
Net Worth Advisory Group3,938$332.2K0.10%
Bridgefront Capital, LLC3,937$332.2K0.10%
Bayforest Capital Ltd3,835$323.6K0.15%
Landscape Capital Management, L.L.C.3,426$289.1K0.02%
Aaron Wealth Advisors3,313$279.5K0.02%
Needham Investment Management LLC3,250$274.2K0.02%
Twinbeech Capital LP3,023$255.1K0.01%
Riverview Capital Advisers, LLC2,963$250.0K0.07%
Contravisory Investment Management, Inc.2,931$247.3K0.05%
Commerzbank Aktiengesellschaft2,912$246.0K0.01%
Manuka Financial, LLC2,824$238.3K0.15%
Evergreen Capital Management LLC2,710$228.6K0.01%
Independent Financial Group, LLC2,567$216.6K0.01%
Paul Damon & Associates, Inc.2,505$211.3K0.10%
Quadrant Capital Group LLC2,500$210.9K0.01%
Archetype Wealth Partners2,467$208.0K0.03%
Adell Harriman & Carpenter Inc2,405$202.9K0.01%
Fukoku Mutual Life Insurance Co2,398$202.3K0.01%
Rainey & Randall Investment Management Inc.2,372$200.1K0.03%
Johnson Financial Group, Inc.1,459$123.1K0.00%
Quest Partners LLC1,069$90.2K0.01%
Group One Trading, L.P.1,061$89.5K0.00%
Newbridge Financial Services Group, Inc.897$75.7K0.01%
Bank of Jackson Hole Trust648$54.7K0.03%
JPL Wealth Management, LLC569$48.0K0.01%
Wealthspire Advisors, LLC566$47.8K0.00%
Root Financial Partners, LLC369$31.1K0.00%
Manning & Napier Advisors LLC330$27.8K0.00%
Quent Capital, LLC308$26.0K0.00%
Transamerica Financial Advisors, Inc.161$13.6K0.00%
Clear Street Markets LLC137$11.6K0.00%
Ameriflex Group, Inc.134$11.3K0.00%
Westfuller Advisors, LLC110$9.28K0.00%
TruNorth Capital Management, LLC79$6.67K0.00%
Guerra Advisors Inc69$5.82K0.00%
Marquette Asset Management, LLC60$5.06K0.00%
Cloud Capital Management, LLC70$5.00K0.00%
First Horizon Corp49$4.13K0.00%
Barnes Dennig Private Wealth Management LLC49$4.13K0.00%
Halbert Hargrove Global Advisors, LLC40$3.38K0.00%
Grey Fox Wealth Advisors, LLC30$2.53K0.00%
Proffitt & Goodson Inc26$2.19K0.00%
ZRC Wealth Management, LLC26$2.19K0.00%
Aspect Partners, LLC26$2.19K0.00%
Texas Capital Bancshares Inc20$1.69K0.00%
Avalon Trust Co18$1.52K0.00%
J.Safra Asset Management Corp15$1.27K0.00%
United Community Bank13$1.10K0.00%
Winnow Wealth LLC12$1.02K0.00%
Bare Financial Services, Inc10$8440.00%
Hurley Capital, LLC5$4220.00%

Sold out (61)

Institutions that held Costar Group, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of CSGP in Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Candlestick Capital Management LP596,098$47.9M
Bridgewater Associates, LP432,708$34.8M
Tribune Investment Group LP180,000$14.5M
CIBC World Markets Inc.151,534$12.2M
Driehaus Capital Management LLC96,183$7.73M
Westfield Capital Management Co LP74,545$5.99M
AXA S.A.39,822$3.20M
Castle Hook Partners LP31,593$2.54M
Two Sigma Investments, LP26,299$2.11M
SummitTX Capital, L.P.22,585$1.82M
Moors & Cabot, Inc.20,233$1.63M
Markel Group Inc.SuperinvestorMarkel Group18,600$1.50M
Concentric Capital Strategies, LP16,758$1.35M
Winton Group Ltd15,285$1.23M
TradeLink Capital LLC15,081$1.21M
S-Bank Fund Management Ltd13,316$1.07M
Bayesian Capital Management, LP12,100$972.8K
Versor Investments LP9,300$747.7K
Hamilton Lane Advisors LLC9,232$742.3K
Grantham, Mayo, Van Otterloo & Co. LLC8,373$673.2K
Inceptionr LLC8,202$659.4K
Farringdon Capital, Ltd.6,957$559.3K
Tectonic Advisors LLC4,662$374.8K
Quantitative Investment Management, LLC4,556$366.0K
V-Square Quantitative Management LLC3,831$308.0K
Holocene Advisors, LP3,829$307.9K
ICONIQ Capital, LLC3,526$283.5K
VestGen Advisors, LLC3,441$276.7K
MBB Public Markets I LLC3,266$262.6K
Family Wealth Group, LLC2,920$234.8K
Tocqueville Asset Management L.P.2,883$231.8K
EntryPoint Capital, LLC2,831$227.6K
Entropy Technologies, LP2,661$213.9K
Fullcircle Wealth LLC2,195$212.5K
Aptus Capital Advisors, LLC2,553$205.3K
Two Sigma Securities, LLC2,545$204.6K
City National Bank of Florida2,534$203.7K
Simplicity Wealth,LLC2,534$203.7K
GeoWealth Management, LLC1,203$96.7K
Twin Peaks Wealth Advisors, LLC765$67.7K
Optiver Holding B.V.472$37.9K
NewSquare Capital LLC411$33.0K
Opal Wealth Advisors, LLC327$26.3K
Boreal Capital Management LLC170$13.7K
Riggs Asset Managment Co. Inc.128$10.3K
Whipplewood Advisors, LLC99$7.96K
Carolina Wealth Advisors, LLC98$7.88K
Garde Capital, Inc.88$7.08K
Loring Wolcott & Coolidge Fiduciary Advisors LLP80$6.43K
Sierra Ocean, LLC26$2.09K
WealthTrak Capital Management LLC25$2.01K
Evergreen Private Wealth LLC23$1.85K
Park Square Financial Group, LLC20$1.61K
Solstein Capital, LLC19$1.53K
Stephens Consulting, LLC15$1.21K
Tobam13$1.00K
Trifecta Capital Advisors, LLC12$965
Richardson Financial Services Inc.11$884
Fairway Wealth LLC5$402
Bellwether Advisors, LLC1$80
Millstone Evans Group, LLC1$80

Not filed for Q3 2025 yet (14)

Institutions that held Costar Group, Inc. at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding CSGP in Q2 2025 that haven't filed for Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Norges Bank5,308,249$426.8M
CIBC World Markets Corp195,452$15.7M
Avantax Advisory Services, Inc.21,294$1.71M
Copperwynd Financial, LLC12,018$966.2K
Scott Marsh Financial, LLC11,350$912.5K
E Fund Management Co., Ltd.10,944$879.9K
Atria Wealth Solutions, Inc.5,851$470.9K
Graypoint LLC4,019$323.1K
First Horizon Advisors, Inc.2,676$215.2K
Vega Investment Solutions629$50.6K
Centricity Wealth Management, LLC560$45.0K
Capital A Wealth Management, LLC63$5.51K
Parkworth Wealth Management, Inc.8$643
Legacy Investment Solutions, LLC3$242