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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, Q1 2023

Institutional positions in Costar Group, Inc. as of Mar 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
692
−4 vs. Q4 2022
Shares held
388.8M
−4.89M (−1.2%) vs. Q4 2022
Total value
$26.7B
−$3.59B (−11.8%) vs. Q4 2022
New holders
81
261 more added
Sold out
85
266 more reduced

8 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 holdersQ1 2023: 692 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 heldQ1 2023: $26.7B
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, Q1 2023

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q4 2022.

Institutions holding CSGP in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Column Capital Advisors, LLC4,470$307.8K0.05%00.0%Unchanged
Empirical Finance, LLC4,472$307.9K0.03%+973+27.8%Added
Advisor Partners II, LLC4,526$311.6K0.02%−641−12.4%Reduced
Raymond James Trust N.A.4,538$312.0K0.01%−517−10.2%Reduced
Adviser Investments LLC4,570$314.6K0.01%−12−0.3%Reduced
Patten & Patten Inc4,651$320.2K0.03%+269+6.1%Added
Exchange Traded Concepts, LLC4,656$320.6K0.01%−2,803−37.6%Reduced
STF Management LP4,664$321.1K0.22%+1,957+72.3%Added
Paloma Partners Management Co4,674$321.8K0.07%+4,674New
Penserra Capital Management LLC4,729$324.0K0.01%−68−1.4%Reduced
Fifth Third Bancorp4,714$324.6K0.00%−1,685−26.3%Reduced
Atlantic Union Bankshares Corp4,740$326.3K0.03%+4,740New
Wellington Shields Capital Management, LLC4,750$327.0K0.04%00.0%Unchanged
Integrated Investment Consultants, LLC4,780$329.1K0.10%+151+3.3%Added
HB Wealth Management, LLC4,781$329.2K0.01%−468−8.9%Reduced
Chatham Capital Group, Inc.4,800$330.5K0.07%00.0%Unchanged
Massmutual Trust Co FSB4,831$332.6K0.01%+169+3.6%Added
Cigna Investments Inc4,865$335.0K0.07%−118−2.4%Reduced
Telemus Capital, LLC4,868$335.2K0.03%+408+9.1%Added
Greenleaf Trust4,889$336.6K0.00%−540−9.9%Reduced
Fund Management at Engine No. 1 LLC4,935$339.8K0.07%+456+10.2%Added
First Manhattan Co5,000$344.2K0.00%−90−1.8%Reduced
Horizon Investments, LLC5,010$344.9K0.01%+166+3.4%Added
Wilbanks Smith & Thomas Asset Management LLC5,020$345.6K0.01%+20+0.4%Added
Veriti Management LLC5,142$354.0K0.04%+1,091+26.9%Added
Wetherby Asset Management Inc5,171$356.0K0.02%−994−16.1%Reduced
Gsa Capital Partners LLP5,245$361.0K0.04%+5,245New
Ieq Capital, LLC5,285$363.9K0.01%−1,497−22.1%Reduced
Boulder Hill Capital Management LP5,300$364.9K0.29%+5,300New
Wealth Alliance5,339$367.6K0.06%+204+4.0%Added
BI Asset Management Fondsmaeglerselskab A/S5,353$369.0K0.01%−1,018−16.0%Reduced
Old National Bancorp5,555$382.5K0.01%+1,217+28.1%Added
Kathleen S. Wright Associates Inc.5,700$392.4K0.26%−350−5.8%Reduced
Rehmann Capital Advisory Group5,791$398.7K0.04%+574+11.0%Added
Pinkerton Retirement Specialists, LLC5,920$407.6K0.08%+5,920New
Parallel Advisors, LLC5,951$409.7K0.01%+63+1.1%Added
Boston Financial Mangement LLC6,072$418.1K0.02%00.0%Unchanged
Avitas Wealth Management LLC6,086$419.0K0.08%−184−2.9%Reduced
Pathstone Family Office, LLC6,108$421.2K0.01%−2,752−31.1%Reduced
Buckhead Capital Management LLC6,303$434.0K0.10%00.0%Unchanged
Altfest L J & Co Inc6,367$438.0K0.07%+1,723+37.1%Added
Fiduciary Group LLC6,490$446.8K0.06%−65−1.0%Reduced
Cetera Advisors LLC6,563$451.9K0.01%−244−3.6%Reduced
Harbour Capital Advisors, LLC6,578$452.9K0.14%00.0%Unchanged
Mercer Global Advisors Inc6,642$457.0K0.00%−1,532−18.7%Reduced
Ostrum Asset Management6,672$459.4K0.04%+6,672New
Marks Group Wealth Management, Inc6,737$463.8K0.06%+25+0.4%Added
Bokf, NA6,766$465.8K0.01%+2,686+65.8%Added
Private Advisor Group, LLC6,800$468.2K0.00%−230−3.3%Reduced
Blueshift Asset Management, LLC6,816$469.3K0.20%+6,816New
Hengehold Capital Management LLC6,836$470.7K0.06%00.0%Unchanged
Synovus Financial Corp6,870$473.0K0.01%+1,328+24.0%Added
Verdence Capital Advisors LLC7,008$482.5K0.06%−20−0.3%Reduced
Sepio Capital, LP7,010$482.6K0.04%00.0%Unchanged
Machina Capital S.A.S.7,612$524.1K0.46%+7,612New
Gotham Asset Management, LLC7,670$528.1K0.01%+7,670New
Perfromance Wealth Partners, LLC7,710$530.8K0.03%+7,710New
Pearl River Capital, LLC7,807$537.5K0.09%+7,807New
Bleakley Financial Group, LLC7,813$537.9K0.02%−1,264−13.9%Reduced
Sawtooth Solutions, LLC7,937$546.5K0.01%+1,286+19.3%Added
Illinois Municipal Retirement Fund7,994$550.0K0.01%+7,994New
Diversified Trust Co8,189$563.8K0.02%−3,413−29.4%Reduced
Steel Peak Wealth Management LLC8,238$567.2K0.04%+224+2.8%Added
Baron Wealth Management LLC8,290$570.8K0.40%−20.0%Reduced
La Banque Postale Asset Management SA8,501$585.3K0.01%−592−6.5%Reduced
FDx Advisors, Inc.7,679$593.0K0.03%00.0%Unchanged
Accretive Wealth Partners, LLC8,615$593.1K0.38%+43+0.5%Added
Citizens Financial Group Inc8,693$598.5K0.02%−2,041−19.0%Reduced
Rockefeller Capital Management L.P.8,805$604.0K0.00%+4,264+93.9%Added
Toroso Investments, LLC8,823$607.0K0.02%+725+9.0%Added
Alberta Investment Management Corp8,900$612.8K0.01%+8,900New
Connable Office Inc9,000$619.6K0.09%00.0%Unchanged
Tokio Marine Asset Management Co Ltd9,071$624.5K0.04%+1,814+25.0%Added
Hills Bank & Trust Co9,093$626.1K0.09%00.0%Unchanged
Vestcor Inc9,345$643.0K0.02%−46−0.5%Reduced
AXS Investments LLC9,631$663.1K0.22%−1,011−9.5%Reduced
Proequities, Inc.9,850$678.2K0.05%−836−7.8%Reduced
Beacon Pointe Advisors, LLC9,859$678.8K0.01%−1,357−12.1%Reduced
Panagora Asset Management Inc9,878$680.1K0.00%−4,101−29.3%Reduced
Coronation Fund Managers Ltd.9,962$685.9K0.02%−5,082−33.8%Reduced
Harbor Advisors LLC10,060$692.6K0.16%00.0%Unchanged
Legacy Advisors, LLC10,085$694.4K0.13%+1,592+18.7%Added
First Hawaiian Bank10,187$701.4K0.02%−495−4.6%Reduced
Emerald Advisers, LLC10,341$712.0K0.03%−3,130−23.2%Reduced
Millennium Management LLC10,394$716.0K0.00%−31,540−75.2%Reduced
Atria Wealth Solutions, Inc.10,514$723.9K0.01%−1,059−9.2%Reduced
Gilbert & Cook, Inc.10,731$738.8K0.13%+189+1.8%Added
XTX Topco Ltd10,822$745.1K0.16%+10,822New
Roundview Capital LLC10,887$749.6K0.08%+6,021+123.7%Added
Algert Global LLC10,990$756.7K0.04%+10,990New
Connor, Clark & Lunn Investment Management Ltd.11,049$760.7K0.00%+11,049New
ArrowMark Colorado Holdings LLC11,144$767.3K0.01%+8,463+315.7%Added
Banco Bilbao Vizcaya Argentaria, S.A.11,173$769.3K0.01%+2,251+25.2%Added
Wedbush Securities Inc11,253$775.0K0.04%−367−3.2%Reduced
Virtus ETF Advisers LLC11,270$775.9K0.43%+513+4.8%Added
Assenagon Asset Management S.A.11,301$778.1K0.00%−31,225−73.4%Reduced
Gould Capital, LLC11,418$786.1K0.61%−2,715−19.2%Reduced
NewEdge Wealth, LLC11,426$786.7K0.03%+999+9.6%Added
Intech Investment Management LLC11,996$825.9K0.01%−49,673−80.5%Reduced
Fort Washington Investment Advisors Inc12,070$831.0K0.01%00.0%Unchanged