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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.

13F holders, Q4 2023

Institutional positions in Costar Group, Inc. as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
737
+55 vs. Q3 2023
Shares held
394.1M
+2.25M (+0.6%) vs. Q3 2023
Total value
$34.4B
+$4.26B (+14.1%) vs. Q3 2023
New holders
105
283 more added
Sold out
50
261 more reduced

8 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CSGP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2023: 737 institutions
Q1 2021: 593 institutionsQ2 2021: 607 institutionsQ3 2021: 594 institutionsQ4 2021: 633 institutionsQ1 2022: 589 institutionsQ2 2022: 591 institutionsQ3 2022: 634 institutionsQ4 2022: 704 institutionsQ1 2023: 692 institutionsQ2 2023: 714 institutionsQ3 2023: 690 institutionsQ4 2023: 737 institutionsQ1 2024: 767 institutionsQ2 2024: 767 institutionsQ3 2024: 773 institutionsQ4 2024: 805 institutionsQ1 2025: 858 institutionsQ2 2025: 873 institutionsQ3 2025: 905 institutionsQ4 2025: 847 institutionsQ1 2026: 797 institutionsQ2 2026: 760 institutions
Value heldQ4 2023: $34.4B
Q1 2021: $31.2BQ2 2021: $31.1BQ3 2021: $32.3BQ4 2021: $29.6BQ1 2022: $25.2BQ2 2022: $23.0BQ3 2022: $28.0BQ4 2022: $30.4BQ1 2023: $26.7BQ2 2023: $35.5BQ3 2023: $30.1BQ4 2023: $34.4BQ1 2024: $38.4BQ2 2024: $29.3BQ3 2024: $30.0BQ4 2024: $28.9BQ1 2025: $33.9BQ2 2025: $34.2BQ3 2025: $34.9BQ4 2025: $28.4BQ1 2026: $16.8BQ2 2026: $11.7B
Institutions holding CSGP and their total value by quarter
QuarterHoldersValue
Q2 2026760$11.7B
Q1 2026797$16.8B
Q4 2025847$28.4B
Q3 2025905$34.9B
Q2 2025873$34.2B
Q1 2025858$33.9B
Q4 2024805$28.9B
Q3 2024773$30.0B
Q2 2024767$29.3B
Q1 2024767$38.4B
Q4 2023737$34.4B
Q3 2023690$30.1B
Q2 2023714$35.5B
Q1 2023692$26.7B
Q4 2022704$30.4B
Q3 2022634$28.0B
Q2 2022591$23.0B
Q1 2022589$25.2B
Q4 2021633$29.6B
Q3 2021594$32.3B
Q2 2021607$31.1B
Q1 2021593$31.2B

Institutions, Q4 2023

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q3 2023.

Institutions holding CSGP in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Fort Washington Investment Advisors Inc12,070$1.05M0.01%00.0%Unchanged
Wealth Enhancement Advisory Services, LLC12,016$1.05M0.00%−2,477−17.1%Reduced
Vontobel Holding Ltd.11,894$1.04M0.01%+691+6.2%Added
Roundview Capital LLC11,851$1.04M0.10%+854+7.8%Added
Atria Wealth Solutions, Inc.11,650$1.02M0.01%+1,145+10.9%Added
Rockefeller Capital Management L.P.11,571$1.01M0.00%+11,571New
Credit Agricole S A11,554$1.01M0.02%+7,713+200.8%Added
Legacy Advisors, LLC11,500$1.00M0.13%+261+2.3%Added
O'Shaughnessy Asset Management, LLC11,409$997.0K0.01%+3,182+38.7%Added
Motley Fool Asset Management LLC11,223$980.8K0.07%+722+6.9%Added
Bellwether Advisors, LLC11,125$972.2K0.24%+3,320+42.5%Added
Regatta Capital Group, LLC11,106$970.6K0.26%+166+1.5%Added
FDx Advisors, Inc.11,088$969.0K0.07%−2,103−15.9%Reduced
FJ Investments, LLC10,700$935.1K0.04%+10,700New
Davis Capital Management10,637$929.6K0.89%+10,637New
Icon Wealth Advisors, LLC10,443$912.6K0.10%+10,443New
Wedbush Securities Inc10,385$908.0K0.04%−15−0.1%Reduced
Kestra Advisory Services, LLC10,341$903.7K0.01%−135−1.3%Reduced
Connor, Clark & Lunn Investment Management Ltd.10,298$899.9K0.00%−17,967−63.6%Reduced
HRT Financial LP9,914$866.0K0.01%−11,643−54.0%Reduced
Panagora Asset Management Inc9,883$863.7K0.00%00.0%Unchanged
Ossiam9,769$853.7K0.01%+2,754+39.3%Added
Lockheed Martin Investment Management Co11,271$853.2K0.06%−4,900−30.3%Reduced
Tokio Marine Asset Management Co Ltd9,690$846.8K0.05%+539+5.9%Added
Magnetar Financial LLC9,660$844.2K0.02%+9,660New
Investment Management Corp of Ontario9,494$829.7K0.02%+9,494New
Accretive Wealth Partners, LLC9,398$821.3K0.39%+192+2.1%Added
Quantbot Technologies LP9,184$802.6K0.05%−17,151−65.1%Reduced
First Hawaiian Bank9,129$797.8K0.03%−22,010−70.7%Reduced
Connable Office Inc9,000$786.5K0.10%00.0%Unchanged
Kingswood Wealth Advisors, LLC8,924$779.9K0.09%−941−9.5%Reduced
Everence Capital Management Inc8,770$766.0K0.05%+8,770New
Jackson Square Capital, LLC8,742$764.0K0.25%+8,742New
Hills Bank & Trust Co8,698$760.1K0.07%−374−4.1%Reduced
Vestcor Inc8,473$740.0K0.03%−88−1.0%Reduced
Baron Wealth Management LLC8,453$738.7K0.40%+9+0.1%Added
BluePath Capital Management, LLC8,861$732.9K0.65%+48+0.5%Added
Oarsman Capital, Inc.8,205$717.0K0.19%+2,975+56.9%Added
SRS Capital Advisors, Inc.8,159$713.0K0.08%+410+5.3%Added
Virtus ETF Advisers LLC7,980$697.4K0.44%+7,980New
Sawtooth Solutions, LLC7,971$696.6K0.02%+431+5.7%Added
Bleakley Financial Group, LLC7,971$696.6K0.02%+431+5.7%Added
Mercer Global Advisors Inc7,865$687.0K0.00%+990+14.4%Added
Proequities, Inc.7,735$676.0K0.05%−612−7.3%Reduced
Patten & Patten Inc7,726$675.2K0.06%+1,718+28.6%Added
Degroof Petercam Asset Management7,700$672.9K0.01%+7,700New
Knollwood Investment Advisory, LLC7,690$672.0K0.14%+7,690New
TownSquare Capital, LLC7,673$670.5K0.01%−15,546−67.0%Reduced
Thoroughbred Financial Services, LLC7,667$670.0K0.05%−63−0.8%Reduced
Empirical Finance, LLC7,564$661.0K0.05%+253+3.5%Added
Alaska Permanent Fund Corp7,528$657.9K0.01%00.0%Unchanged
Ieq Capital, LLC7,423$648.7K0.01%+422+6.0%Added
Fifth Third Bancorp7,395$646.2K0.00%+1,018+16.0%Added
Veriti Management LLC7,368$643.9K0.06%+861+13.2%Added
Marks Group Wealth Management, Inc7,363$643.5K0.07%+402+5.8%Added
Verdence Capital Advisors LLC7,318$639.5K0.06%+238+3.4%Added
Telemus Capital, LLC7,304$638.3K0.05%−1,159−13.7%Reduced
United Capital Financial Advisers, LLC7,127$622.8K0.01%+7,127New
HB Wealth Management, LLC7,092$619.8K0.01%+887+14.3%Added
STF Management LP6,966$608.8K0.29%+305+4.6%Added
Hengehold Capital Management LLC6,816$595.7K0.07%00.0%Unchanged
BI Asset Management Fondsmaeglerselskab A/S6,800$594.0K0.01%+4,914+260.6%Added
Illinois Municipal Retirement Fund6,779$592.0K0.01%00.0%Unchanged
Private Advisor Group, LLC6,491$567.3K0.00%+215+3.4%Added
Penserra Capital Management LLC6,456$562.0K0.01%−702−9.8%Reduced
Buckhead Capital Management LLC6,303$550.8K0.20%00.0%Unchanged
Citadel Advisors LLC6,215$543.1K0.00%−15,882−71.9%Reduced
Flputnam Investment Management Co6,202$542.0K0.01%−1,501−19.5%Reduced
Cetera Advisors LLC6,172$539.4K0.01%+406+7.0%Added
Boston Financial Mangement LLC6,040$527.8K0.02%−32−0.5%Reduced
Avitas Wealth Management LLC5,789$505.9K0.08%−24−0.4%Reduced
Ascent Group, LLC5,954$493.5K0.05%+1,367+29.8%Added
Perfromance Wealth Partners, LLC5,629$491.9K0.02%−250−4.3%Reduced
Horizon Investments, LLC5,580$487.6K0.01%−102−1.8%Reduced
Baker Tilly Wealth Management, LLC5,554$485.4K0.08%−1,299−19.0%Reduced
Glenmede Trust Co NA5,530$483.3K0.00%−2,049−27.0%Reduced
Capital Management Associates5,500$480.6K0.61%00.0%Unchanged
La Banque Postale Asset Management SA5,426$474.2K0.01%00.0%Unchanged
HBK Sorce Advisory LLC5,313$464.3K0.02%+335+6.7%Added
Fidelis Capital Partners, LLC5,275$461.0K0.10%+860+19.5%Added
Oak Thistle LLC5,245$458.4K0.13%−8,014−60.4%Reduced
Wetherby Asset Management Inc5,190$453.6K0.02%−229−4.2%Reduced
Picton Mahoney Asset Management5,160$451.0K0.02%−64,384−92.6%Reduced
Altfest L J & Co Inc5,147$450.0K0.07%−1,975−27.7%Reduced
Inceptionr LLC5,038$440.3K0.31%+5,038New
Wilbanks Smith & Thomas Asset Management LLC5,025$439.1K0.01%00.0%Unchanged
First Manhattan Co5,000$436.9K0.00%−248−4.7%Reduced
CWM, LLC4,969$434.0K0.00%+234+4.9%Added
Signaturefd, LLC4,855$424.3K0.01%−351−6.7%Reduced
Kathleen S. Wright Associates Inc.5,230$423.2K0.22%00.0%Unchanged
Chatham Capital Group, Inc.4,800$419.5K0.08%00.0%Unchanged
Massmutual Trust Co FSB4,772$417.0K0.01%−278−5.5%Reduced
Independent Advisor Alliance4,755$415.6K0.01%+4,755New
Wellington Shields Capital Management, LLC4,750$415.1K0.05%00.0%Unchanged
Lake Street Advisors Group, LLC4,701$410.8K0.02%+4,701New
Adviser Investments LLC4,570$399.4K0.01%00.0%Unchanged
Meiji Yasuda Asset Management Co Ltd.4,559$398.4K0.02%00.0%Unchanged
Wealth Alliance4,539$396.7K0.06%+132+3.0%Added
Integrated Investment Consultants, LLC4,534$396.2K0.13%00.0%Unchanged
Paloma Partners Management Co4,517$394.7K0.06%+4,471+9,719.6%Added