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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 2024

Institutional positions in Costar Group, Inc. as of Dec 31, 2024. 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
805
+47 vs. Q3 2024
Shares held
403.4M
+7.24M (+1.8%) vs. Q3 2024
Total value
$28.9B
−$1.01B (−3.4%) vs. Q3 2024
New holders
144
296 more added
Sold out
97
277 more reduced

15 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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 2024: 805 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 2024: $28.9B
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 2024

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q3 2024.

Institutions holding CSGP in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Voya Financial Advisors, Inc.18,181$1.31M0.14%−1,048−5.5%Reduced
O'Shaughnessy Asset Management, LLC18,176$1.30M0.01%+1,644+9.9%Added
Kampmann Melissa S.18,175$1.30M1.02%−5,240−22.4%Reduced
Wealth Enhancement Advisory Services, LLC18,045$1.29M0.00%+1,070+6.3%Added
Bell Bank17,885$1.28M0.10%−347−1.9%Reduced
Alliance Wealth Advisors, LLC17,596$1.26M0.33%+17,596New
Institute for Wealth Management, LLC.17,547$1.26M0.16%−5,106−22.5%Reduced
Mercer Global Advisors Inc17,448$1.25M0.00%+7,963+84.0%Added
Ameritas Investment Partners, Inc.17,037$1.22M0.04%+408+2.5%Added
Avantax Advisory Services, Inc.16,717$1.20M0.01%−3,318−16.6%Reduced
Procyon Private Wealth Partners, LLC16,524$1.18M0.08%−2,656−13.8%Reduced
KP Management LLC16,500$1.18M0.41%−25,000−60.2%Reduced
B. Metzler seel. Sohn & Co. AG16,298$1.17M0.01%−3,590−18.1%Reduced
Vident Advisory, LLC16,167$1.16M0.02%+917+6.0%Added
Dynasty Wealth Management, LLC15,952$1.14M0.02%+11,770+281.4%Added
Aviva PLC15,634$1.12M0.00%−45−0.3%Reduced
Redmond Asset Management, LLC15,615$1.12M0.28%+835+5.6%Added
EagleClaw Capital Managment, LLC15,600$1.12M0.18%00.0%Unchanged
Norden Group LLC15,363$1.10M0.12%+15,363New
Alps Advisors Inc15,243$1.09M0.01%+2,006+15.2%Added
Advisor Group Holdings, Inc.15,209$1.09M0.00%−10,015−39.7%Reduced
Conestoga Capital Advisors, LLC15,185$1.09M0.01%00.0%Unchanged
Sapient Capital LLC15,118$1.08M0.02%−8,849−36.9%Reduced
Bokf, NA15,406$1.08M0.02%−882−5.4%Reduced
Chicago Trust Co NA15,035$1.08M0.19%−2,200−12.8%Reduced
Commerce Bank14,652$1.05M0.01%−34,245−70.0%Reduced
Everence Capital Management Inc14,320$1.02M0.07%+4,930+52.5%Added
Legacy Advisors, LLC14,234$1.02M0.10%+1,600+12.7%Added
Squarepoint Ops LLC14,115$1.01M0.00%+3,081+27.9%Added
Chicago Partners Investment Group LLC14,067$1.00M0.03%−526−3.6%Reduced
RMR Wealth Builders13,944$998.3K0.10%+14+0.1%Added
First Hawaiian Bank13,861$992.3K0.03%+72+0.5%Added
Meeder Asset Management Inc13,850$991.5K0.07%−89,426−86.6%Reduced
Plato Investment Management Ltd13,744$987.5K0.07%00.0%Unchanged
Grove Bank & Trust13,791$987.3K0.14%+13,791New
Metis Global Partners, LLC13,752$984.5K0.03%−4,256−23.6%Reduced
Next Century Growth Investors LLC13,506$966.9K0.07%−12,485−48.0%Reduced
TFJ Management, LLC13,488$965.6K0.87%+13,488New
Davis Capital Management13,456$963.3K0.78%+792+6.3%Added
Kestra Advisory Services, LLC13,330$954.3K0.01%+3,405+34.3%Added
RSM US Wealth Management LLC13,252$951.8K0.01%−4,948−27.2%Reduced
Papamarkou Wellner Asset Management inc.13,175$943.2K0.65%+13,175New
Apollon Wealth Management, LLC13,132$940.1K0.02%+9,453+256.9%Added
Northwestern Mutual Investment Management Company, LLC13,017$931.9K0.02%+28+0.2%Added
Inceptionr LLC12,606$902.5K0.20%+522+4.3%Added
Entropy Technologies, LP12,421$889.2K0.09%−24,340−66.2%Reduced
Guidance Capital, Inc11,985$888.8K0.27%+11,985New
Rockefeller Capital Management L.P.12,347$885.0K0.00%+12,347New
Lombard Odier Asset Management (Switzerland) SA12,356$884.6K0.07%+615+5.2%Added
Regatta Capital Group, LLC12,320$882.0K0.17%+414+3.5%Added
E. Ohman J:or Asset Management AB12,300$880.6K0.02%+12,300New
E Fund Management Co., Ltd.12,299$880.5K0.04%+7,873+177.9%Added
Allstate Corp12,142$869.2K0.03%+12,142New
Tokio Marine Asset Management Co Ltd12,102$866.4K0.03%+585+5.1%Added
Parnassus Investments12,009$859.7K0.00%−218,660−94.8%Reduced
Bellwether Advisors, LLC11,979$857.6K0.15%+4,634+63.1%Added
SRS Capital Advisors, Inc.11,970$856.9K0.05%+3,239+37.1%Added
Ossiam11,738$840.3K0.01%−1,099−8.6%Reduced
Wiley Bros.-Aintree Capital, LLC11,620$839.5K0.01%+3,860+49.7%Added
Gilbert & Cook, Inc.11,726$839.5K0.12%+664+6.0%Added
LRT Capital Management, LLC11,484$822.1K0.64%+7,574+193.7%Added
Postrock Partners LLC11,440$819.0K0.40%+11,440New
Howard Capital Management Inc.11,216$803.0K0.01%+362+3.3%Added
Sone Capital Management, LLC11,022$789.1K0.10%+11,022New
Private Advisor Group, LLC10,886$779.3K0.00%+828+8.2%Added
WoodTrust Financial Corp10,825$775.0K0.11%−4,575−29.7%Reduced
Centiva Capital, LP10,762$770.5K0.03%+10,762New
Mirabella Financial Services LLP10,743$768.1K0.07%+10,743New
Trust Point Inc.10,685$764.9K0.05%+7,193+206.0%Added
Stansberry Asset Management, LLC10,670$763.9K0.10%−840−7.3%Reduced
Bayesian Capital Management, LP10,600$758.9K0.09%+10,600New
Phraction Management LLC10,187$729.3K0.26%+10,187New
Gsa Capital Partners LLP9,999$716.0K0.05%+6,949+227.8%Added
Credit Agricole S A9,771$699.5K0.00%−53,094−84.5%Reduced
Sequoia Financial Advisors, LLC9,763$698.9K0.01%+2,328+31.3%Added
Accretive Wealth Partners, LLC9,707$694.9K0.30%+105+1.1%Added
NewEdge Wealth, LLC9,691$693.8K0.01%+5,051+108.9%Added
Personal Cfo Solutions, LLC9,653$691.1K0.14%+6,979+261.0%Added
American Assets Capital Advisers, LLC9,534$682.5K0.23%+2,700+39.5%Added
Banco Bilbao Vizcaya Argentaria, S.A.9,483$678.9K0.01%−4,617−32.7%Reduced
Hills Bank & Trust Co9,374$671.1K0.05%+717+8.3%Added
XTX Topco Ltd9,272$663.8K0.06%+9,272New
Bleakley Financial Group, LLC9,222$660.2K0.02%+584+6.8%Added
FORA Capital, LLC9,159$655.7K0.08%−7,260−44.2%Reduced
Miracle Mile Advisors, LLC9,055$648.2K0.01%−13−0.1%Reduced
Connable Office Inc9,000$644.3K0.07%00.0%Unchanged
Gibbs Wealth Management8,945$640.4K0.17%+8,945New
Mattern Capital Management, LLC8,878$635.6K0.08%+1,188+15.4%Added
Cresset Asset Management, LLC8,780$628.6K0.00%−15,917−64.4%Reduced
Diversify Advisory Services, LLC8,958$625.9K0.03%+8,958New
IVC Wealth Advisors LLC8,622$617.2K0.35%−2,022−19.0%Reduced
Patten & Patten Inc8,563$613.0K0.04%−276−3.1%Reduced
Ascent Group, LLC8,500$608.5K0.05%+1,249+17.2%Added
Los Angeles Capital Management LLC8,457$605.4K0.00%−49,380−85.4%Reduced
Siemens Fonds Invest GmbH8,289$595.3K0.06%00.0%Unchanged
Baron Wealth Management LLC8,291$593.6K0.28%+6+0.1%Added
Ieq Capital, LLC8,261$591.4K0.01%−11,667−58.5%Reduced
Moran Wealth Management, LLC8,207$587.5K0.02%+180+2.2%Added
Snowden Capital Advisors LLC8,140$582.7K0.02%+3,459+73.9%Added
Vontobel Holding Ltd.8,080$578.4K0.00%−5,209−39.2%Reduced