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CoStar Group (CSGP) Institutional Ownership

CoStar Group logo
$32.38 -0.67 (-2.03%)
Closing price 08/14/2026 04:00 PM Eastern
Extended Trading
$32.62 +0.24 (+0.74%)
As of 08/14/2026 07:55 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for CoStar Group (NASDAQ:CSGP)

Current
Institutional Ownership
Percentage
96.60%
Number of
Institutional Buyers
(last 12 months)
510
Total
Institutional Inflows
(last 12 months)
$5.37B
Number of
Institutional Sellers
(last 12 months)
376
Total
Institutional Outflows
(last 12 months)
$4.14B
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CSGP Institutional Buying and Selling by Quarter

CoStar Group Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/15/2026American Capital Management Inc.725,143$20.54M0.9%N/A0.179%
8/15/2026Odyssean LLC90,524$2.56M0.4%N/A0.022%
8/15/2026Man Group plc921,094$26.09M0.0%N/A0.227%
8/15/2026Jupiter Topco LLC7,832,860$221.83M0.1%N/A1.933%
8/14/2026Primecap Management Co. CA821,600$23.27M0.0%N/A0.203%
8/14/2026Canada Pension Plan Investment Board2,481,641$70.28M0.0%N/A0.612%
8/14/2026Legal & General Group Plc1,682,774$47.66M0.0%N/A0.415%
8/14/2026The Manufacturers Life Insurance Company 226,560$6.42M0.0%N/A0.056%
8/14/2026Sone Capital Management LLC254,096$7.20M0.5%N/A0.063%
8/14/2026 Wolf Hill Capital Management LP29,100$824.11M0.1%N/A0.007%
8/13/2026 Meritage Group LP5,394,164$152.76M5.9%N/A1.331%
8/13/2026 OMERS ADMINISTRATION Corp207,870$5.89M0.0%N/A0.051%
8/13/2026 Sanctuary Advisors LLC36,059$1.02M0.0%N/A0.009%
8/13/2026 Barbara Oil Co.32,000$948K0.3%N/A0.008%
8/13/2026 Connor Clark & Lunn Investment Management Ltd.1,169,688$33.13M0.1%N/A0.289%
8/13/2026 Bank of Nova Scotia93,291$2.65M0.0%N/A0.023%
8/12/2026 Elevation Point Wealth Partners LLC7,721$219K0.0%N/A0.002%
8/12/2026 Northwestern Mutual Wealth Management Co.12,753$361K0.0%N/A0.003%
8/12/2026 Quantbot Technologies LP62,491$1.77M0.1%N/A0.015%
8/12/2026 Evolve Private Wealth LLC16,163$458K0.0%N/A0.004%
8/12/2026 Korea Investment CORP698,417$19.78M0.0%N/A0.172%
8/12/2026 Ieq Capital LLC351,667$9.96M0.0%N/A0.087%
8/12/2026 Callan Family Office LLC11,764$333K0.0%N/A0.003%
8/11/2026 Allworth Financial LP13,582$385K0.0%N/A0.003%
8/11/2026 B. Metzler seel. Sohn & Co. AG28,620$811K0.0%N/A0.007%
8/10/2026 NewEdge Wealth LLC18,538$525K0.0%N/A0.005%
8/10/2026 Danske Bank A S174,139$4.93M0.0%N/A0.043%
8/10/2026 Diversify Advisory Services LLC25,570$746K0.0%N/A0.006%
8/8/2026 Wealthfront Advisers LLC24,534$695K0.0%N/A0.006%
8/8/2026 Meeder Advisory Services Inc.10,849$307K0.0%N/A0.003%
8/8/2026 Meeder Asset Management Inc.12,720$360K0.0%N/A0.003%
8/7/2026 Citizens Financial Group Inc. RI12,982$368K0.0%N/A0.003%
8/7/2026 BlackRock Inc.33,813,969$957.61M0.0%N/A8.345%
8/7/2026 Pallas Capital Advisors LLC26,889$761K0.0%N/A0.007%
8/7/2026 Deutsche Bank AG2,264,379$64.13M0.0%N/A0.559%
8/7/2026 Perigon Wealth Management LLC8,716$247K0.0%N/A0.002%
8/7/2026 Mitsubishi UFJ Asset Management Co. Ltd.1,015,380$28.76M0.0%N/A0.251%
8/7/2026 Plato Investment Management Ltd8,565$241K0.0%N/A0.002%
8/7/2026 Simplicity Wealth LLC11,922$338K0.0%N/A0.003%
8/6/2026 Global Retirement Partners LLC4,451$126K0.0%N/A0.001%
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8/6/2026 Fielder Capital Group LLC16,784$475K0.1%N/A0.004%
8/6/2026 Bank of New York Mellon Corp2,005,395$56.79M0.0%N/A0.495%
8/6/2026 Focus Partners Advisor Solutions LLC19,321$547K0.0%N/A0.005%
8/6/2026 State of Wyoming6,779$192K0.0%N/A0.002%
8/6/2026 GSA Capital Partners LLP51,986$1.47M0.1%N/A0.013%
8/3/2026 Oppenheimer Asset Management Inc.265,401$7.52M0.1%N/A0.065%
7/10/2026 Tema ETFs LLC8,914$252K0.0%+18.3%0.002%
7/10/2026 Handelsbanken Fonder AB129,700$3.67M0.0%+6.4%0.032%
7/10/2026 Salvus Wealth Management LLC12,148$344K0.2%-12.3%0.003%
7/8/2026 Czech National Bank116,234$3.29M0.0%+0.7%0.028%
7/8/2026 PensionDanmark Pensionsforsikringsaktieselskab39,466$1.12M0.0%-71.4%0.010%
7/8/2026 Red Spruce Capital LLC76,448$2.17M0.8%+101.0%0.019%
7/8/2026 Lincoln Capital LLC14,265$404K0.1%-9.1%0.003%
7/7/2026 GAMMA Investing LLC7,605$215K0.0%-15.2%0.002%
7/7/2026 Harbor Investment Advisory LLC3,570$101K0.0%-16.9%0.001%
7/2/2026 Versant Capital Management Inc3,431$97K0.0%+227.7%0.001%
6/22/2026 Sapient Capital LLC5,531$223K0.0%-38.7%0.001%
6/18/2026 Pacer Advisors Inc.47,092$1.90M0.0%-26.8%0.012%
6/3/2026 Parallel Advisors LLC20,346$821K0.0%-2.1%0.005%
5/29/2026 Ramiah Investment Group7,217$291K0.3%+32.1%0.002%
5/26/2026 Glenmede Trust Co. NA207,031$8.35M0.0%+168.8%0.051%
5/22/2026Groupama Asset Managment5,705$230K0.0%-42.3%0.001%
5/22/2026 Segall Bryant & Hamill LLC26,988$1.09M0.0%N/A0.007%
5/20/2026Liontrust Investment Partners LLP35,058$1.41M0.0%+23.8%0.009%
5/19/2026Bank of America Corp DE3,568,107$143.94M0.0%+1.8%0.874%
5/19/2026 Edgestream Partners L.P.74,431$3.00M0.1%+370.9%0.018%
5/19/2026Janus Henderson Group PLC7,724,152$311.59M0.1%+3.4%1.892%
5/19/2026Centaurus Financial Inc.30,534$1.23M0.1%-3.7%0.007%
5/18/2026Spyglass Capital Management LLC1,111,224$44.83M3.2%-29.6%0.272%
5/18/2026 Amundi3,280,724$132.34M0.0%-20.3%0.803%
5/18/2026 EverSource Wealth Advisors LLC2,721$110K0.0%+60.5%0.001%
5/18/2026California State Teachers Retirement System667,111$26.91M0.0%-2.3%0.163%
5/18/2026Royal Bank of Canada1,435,734$57.92M0.0%+9.8%0.352%
5/18/2026Rush Island Management LP483,200$19.49M1.3%N/A0.118%
5/18/2026Empowered Funds LLC40,987$1.65M0.0%+329.6%0.010%
5/16/2026Ashford Capital Management Inc.102,490$4.13M0.5%-58.7%0.025%
5/16/2026The Manufacturers Life Insurance Company248,749$10.04M0.0%-1.4%0.061%
5/16/2026 Quantinno Capital Management LP340,154$13.72M0.0%+68.3%0.083%
5/15/2026Ardmore Road Asset Management LP666,900$26.90M1.8%N/A0.163%
5/15/2026Weiss Asset Management LP497,500$20.07M0.3%+1,349.6%0.122%
5/15/2026 OMERS ADMINISTRATION Corp21,618$872K0.0%+26.5%0.005%
5/15/2026Tiger Global Management LLC1,500,000$60.51M0.3%-33.6%0.367%
5/15/2026Granahan Investment Management LLC161,047$6.50M0.3%+75.2%0.039%
5/15/2026 Wealth Alliance LLC9,048$365K0.0%+137.3%0.002%
5/15/2026 Entropy Technologies LP38,653$1.56M0.1%+194.6%0.009%
5/14/2026 Healthcare of Ontario Pension Plan Trust Fund136,727$5.52M0.0%-6.7%0.033%
5/14/2026Public Employees Retirement System of Ohio122,921$4.96M0.0%-3.1%0.030%
5/14/2026 Compound Planning Inc.10,674$431K0.0%+28.4%0.003%
5/14/2026 Arrowstreet Capital Limited Partnership40,911$1.65M0.0%N/A0.010%
5/14/2026Caxton Associates LLP83,948$3.39M0.1%N/A0.021%
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5/14/2026 Mizuho Markets Americas LLC275,876$11.13M0.3%-93.8%0.068%
5/14/2026 Bank of Nova Scotia94,485$3.81M0.0%+16.6%0.023%
5/14/2026Gibbs Wealth Management25,414$1.03M0.1%+149.3%0.006%
5/14/2026Sei Investments Co.386,558$15.59M0.0%-37.8%0.095%
5/14/2026 Lido Advisors LLC14,301$577K0.0%-44.8%0.004%
5/13/2026 Cetera Investment Advisers136,277$5.50M0.0%-9.8%0.033%
5/13/2026 Alpha Family Trust5,410$218K0.1%N/A0.001%
5/13/2026Prestige Wealth Management Group LLC6,026$243K0.0%+10,113.6%0.001%
5/13/2026 NewEdge Wealth LLC15,801$637K0.0%+21.5%0.004%
5/13/2026 First Citizens Bank & Trust Co.343,504$13.86M0.2%+33.4%0.084%


CSGP Institutional Ownership - Frequently Asked Questions

During the previous two years, 899 institutional investors and hedge funds held shares of CoStar Group. The most heavily invested institutionals were Vanguard Group Inc. ($4.71B), Bamco Inc. NY ($1.31B), State Street Corp ($1.25B), BlackRock Inc. ($957.61M), Baillie Gifford & Co. ($869.63M), Wolf Hill Capital Management LP ($824.11M), and Geode Capital Management LLC ($816.24M).Learn more on CoStar Group's institutional investors.

96.60% of CoStar Group's stock is owned by institutional investors. Learn more on CSGP's institutional investor holdings.

Of the 805 institutional investors that purchased CoStar Group's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($33.81M), Norges Bank ($17.86M), Capital International Investors ($8.40M), Jupiter Topco LLC ($7.83M), Mizuho Markets Americas LLC ($7.40M), Polen Capital Management LLC ($6.60M), and Meritage Group LP ($5.39M).

Institutional investors have bought a total of 115,409,531 shares in the last 24 months. This purchase volume represents approximately $5.37B in transactions.

Of the 367 institutional investors that sold CoStar Group's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Capital International Investors ($8.03M), Mizuho Markets Americas LLC ($5.58M), Massachusetts Financial Services Co. MA ($4.25M), Macquarie Group Ltd. ($4.20M), Morgan Stanley ($3.25M), Franklin Resources Inc. ($2.57M), and Bank of New York Mellon Corp ($2.44M).

Institutional investors have sold a total of 60,424,079 shares in the last 24 months. This volume of shares sold represents approximately $4.14B in transactions.


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Institutional ownership data for NASDAQ:CSGP is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/15/2026. New 13F filings are added each quarter as they're published.
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