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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
National Asset Management, Inc.3,414$298.3K0.01%−1,673−32.9%Reduced
Venturi Wealth Management, LLC3,473$303.5K0.02%+953+37.8%Added
Harvest Fund Management Co., Ltd3,589$312.0K0.05%+376+11.7%Added
CCG Wealth Management, LLC3,578$312.7K0.21%00.0%Unchanged
Angeles Investment Advisors, LLC3,628$317.1K0.02%−2,297−38.8%Reduced
Everhart Financial Group, Inc.3,641$318.2K0.11%+184+5.3%Added
Checchi Capital Advisers, LLC3,658$319.7K0.03%+121+3.4%Added
Wealth Management Associates, Inc.3,679$321.5K0.17%00.0%Unchanged
GYL Financial Synergies, LLC3,766$329.1K0.03%+246+7.0%Added
Virtu Financial LLC3,773$330.0K0.03%+3,773New
UniSuper Management Pty Ltd3,806$332.6K0.00%+806+26.9%Added
Resources Investment Advisors, LLC.3,829$334.6K0.01%+3,829New
Vestmark Advisory Solutions, Inc.3,884$339.4K0.02%−4,116−51.4%Reduced
HighPoint Advisor Group LLC3,552$340.0K0.02%+3,552New
Proficio Capital Partners LLC3,946$344.8K0.04%−81−2.0%Reduced
Coldstream Capital Management Inc3,946$344.8K0.01%+3,946New
ICICI Prudential Asset Management Co Ltd3,963$346.3K0.04%+330+9.1%Added
Forum Financial Management, LP3,989$348.6K0.01%00.0%Unchanged
Natixis3,997$349.3K0.00%−46,450−92.1%Reduced
NorthRock Partners, LLC4,032$352.4K0.01%+1,012+33.5%Added
E Fund Management Co., Ltd.4,067$355.4K0.02%−425−9.5%Reduced
17 Capital Partners, LLC4,085$357.0K0.33%+4,085New
Snowden Capital Advisors LLC4,109$359.1K0.01%+218+5.6%Added
Fiduciary Group LLC4,135$361.4K0.04%−1,446−25.9%Reduced
Apriem Advisors4,208$367.7K0.05%00.0%Unchanged
NewEdge Wealth, LLC4,247$371.1K0.01%−3,951−48.2%Reduced
Beacon Pointe Advisors, LLC4,274$373.5K0.00%−3,083−41.9%Reduced
Raymond James Trust N.A.4,308$376.5K0.01%+318+8.0%Added
Cigna Investments Inc4,310$377.0K0.08%00.0%Unchanged
Brown Miller Wealth Management, LLC4,329$378.3K0.19%00.0%Unchanged
Vident Advisory, LLC4,371$382.0K0.01%+4,371New
Parkside Financial Bank & Trust4,433$387.4K0.07%+30+0.7%Added
Old National Bancorp4,440$388.0K0.01%+550+14.1%Added
Empowered Funds, LLC4,443$388.3K0.01%+839+23.3%Added
Pearl River Capital, LLC4,501$393.3K0.06%−24,576−84.5%Reduced
David Loasby4,843$393.9K0.04%+888+22.5%Added
SageView Advisory Group, LLC4,622$394.0K0.02%+4,622New
Paloma Partners Management Co4,517$394.7K0.06%+4,471+9,719.6%Added
Integrated Investment Consultants, LLC4,534$396.2K0.13%00.0%Unchanged
Wealth Alliance4,539$396.7K0.06%+132+3.0%Added
Meiji Yasuda Asset Management Co Ltd.4,559$398.4K0.02%00.0%Unchanged
Adviser Investments LLC4,570$399.4K0.01%00.0%Unchanged
Lake Street Advisors Group, LLC4,701$410.8K0.02%+4,701New
Wellington Shields Capital Management, LLC4,750$415.1K0.05%00.0%Unchanged
Independent Advisor Alliance4,755$415.6K0.01%+4,755New
Massmutual Trust Co FSB4,772$417.0K0.01%−278−5.5%Reduced
Chatham Capital Group, Inc.4,800$419.5K0.08%00.0%Unchanged
Kathleen S. Wright Associates Inc.5,230$423.2K0.22%00.0%Unchanged
Signaturefd, LLC4,855$424.3K0.01%−351−6.7%Reduced
CWM, LLC4,969$434.0K0.00%+234+4.9%Added
First Manhattan Co5,000$436.9K0.00%−248−4.7%Reduced
Wilbanks Smith & Thomas Asset Management LLC5,025$439.1K0.01%00.0%Unchanged
Inceptionr LLC5,038$440.3K0.31%+5,038New
Altfest L J & Co Inc5,147$450.0K0.07%−1,975−27.7%Reduced
Picton Mahoney Asset Management5,160$451.0K0.02%−64,384−92.6%Reduced
Wetherby Asset Management Inc5,190$453.6K0.02%−229−4.2%Reduced
Oak Thistle LLC5,245$458.4K0.13%−8,014−60.4%Reduced
Fidelis Capital Partners, LLC5,275$461.0K0.10%+860+19.5%Added
HBK Sorce Advisory LLC5,313$464.3K0.02%+335+6.7%Added
La Banque Postale Asset Management SA5,426$474.2K0.01%00.0%Unchanged
Capital Management Associates5,500$480.6K0.61%00.0%Unchanged
Glenmede Trust Co NA5,530$483.3K0.00%−2,049−27.0%Reduced
Baker Tilly Wealth Management, LLC5,554$485.4K0.08%−1,299−19.0%Reduced
Horizon Investments, LLC5,580$487.6K0.01%−102−1.8%Reduced
Perfromance Wealth Partners, LLC5,629$491.9K0.02%−250−4.3%Reduced
Ascent Group, LLC5,954$493.5K0.05%+1,367+29.8%Added
Avitas Wealth Management LLC5,789$505.9K0.08%−24−0.4%Reduced
Boston Financial Mangement LLC6,040$527.8K0.02%−32−0.5%Reduced
Cetera Advisors LLC6,172$539.4K0.01%+406+7.0%Added
Flputnam Investment Management Co6,202$542.0K0.01%−1,501−19.5%Reduced
Citadel Advisors LLC6,215$543.1K0.00%−15,882−71.9%Reduced
Buckhead Capital Management LLC6,303$550.8K0.20%00.0%Unchanged
Penserra Capital Management LLC6,456$562.0K0.01%−702−9.8%Reduced
Private Advisor Group, LLC6,491$567.3K0.00%+215+3.4%Added
Illinois Municipal Retirement Fund6,779$592.0K0.01%00.0%Unchanged
BI Asset Management Fondsmaeglerselskab A/S6,800$594.0K0.01%+4,914+260.6%Added
Hengehold Capital Management LLC6,816$595.7K0.07%00.0%Unchanged
STF Management LP6,966$608.8K0.29%+305+4.6%Added
HB Wealth Management, LLC7,092$619.8K0.01%+887+14.3%Added
United Capital Financial Advisers, LLC7,127$622.8K0.01%+7,127New
Telemus Capital, LLC7,304$638.3K0.05%−1,159−13.7%Reduced
Verdence Capital Advisors LLC7,318$639.5K0.06%+238+3.4%Added
Marks Group Wealth Management, Inc7,363$643.5K0.07%+402+5.8%Added
Veriti Management LLC7,368$643.9K0.06%+861+13.2%Added
Fifth Third Bancorp7,395$646.2K0.00%+1,018+16.0%Added
Ieq Capital, LLC7,423$648.7K0.01%+422+6.0%Added
Alaska Permanent Fund Corp7,528$657.9K0.01%00.0%Unchanged
Empirical Finance, LLC7,564$661.0K0.05%+253+3.5%Added
Thoroughbred Financial Services, LLC7,667$670.0K0.05%−63−0.8%Reduced
TownSquare Capital, LLC7,673$670.5K0.01%−15,546−67.0%Reduced
Knollwood Investment Advisory, LLC7,690$672.0K0.14%+7,690New
Degroof Petercam Asset Management7,700$672.9K0.01%+7,700New
Patten & Patten Inc7,726$675.2K0.06%+1,718+28.6%Added
Proequities, Inc.7,735$676.0K0.05%−612−7.3%Reduced
Mercer Global Advisors Inc7,865$687.0K0.00%+990+14.4%Added
Sawtooth Solutions, LLC7,971$696.6K0.02%+431+5.7%Added
Bleakley Financial Group, LLC7,971$696.6K0.02%+431+5.7%Added
Virtus ETF Advisers LLC7,980$697.4K0.44%+7,980New
SRS Capital Advisors, Inc.8,159$713.0K0.08%+410+5.3%Added
Oarsman Capital, Inc.8,205$717.0K0.19%+2,975+56.9%Added