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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
BluePath Capital Management, LLC8,861$732.9K0.65%+48+0.5%Added
Baron Wealth Management LLC8,453$738.7K0.40%+9+0.1%Added
Vestcor Inc8,473$740.0K0.03%−88−1.0%Reduced
Hills Bank & Trust Co8,698$760.1K0.07%−374−4.1%Reduced
Jackson Square Capital, LLC8,742$764.0K0.25%+8,742New
Everence Capital Management Inc8,770$766.0K0.05%+8,770New
Kingswood Wealth Advisors, LLC8,924$779.9K0.09%−941−9.5%Reduced
Connable Office Inc9,000$786.5K0.10%00.0%Unchanged
First Hawaiian Bank9,129$797.8K0.03%−22,010−70.7%Reduced
Quantbot Technologies LP9,184$802.6K0.05%−17,151−65.1%Reduced
Accretive Wealth Partners, LLC9,398$821.3K0.39%+192+2.1%Added
Investment Management Corp of Ontario9,494$829.7K0.02%+9,494New
Magnetar Financial LLC9,660$844.2K0.02%+9,660New
Tokio Marine Asset Management Co Ltd9,690$846.8K0.05%+539+5.9%Added
Lockheed Martin Investment Management Co11,271$853.2K0.06%−4,900−30.3%Reduced
Ossiam9,769$853.7K0.01%+2,754+39.3%Added
Panagora Asset Management Inc9,883$863.7K0.00%00.0%Unchanged
HRT Financial LP9,914$866.0K0.01%−11,643−54.0%Reduced
Connor, Clark & Lunn Investment Management Ltd.10,298$899.9K0.00%−17,967−63.6%Reduced
Kestra Advisory Services, LLC10,341$903.7K0.01%−135−1.3%Reduced
Wedbush Securities Inc10,385$908.0K0.04%−15−0.1%Reduced
Icon Wealth Advisors, LLC10,443$912.6K0.10%+10,443New
Davis Capital Management10,637$929.6K0.89%+10,637New
FJ Investments, LLC10,700$935.1K0.04%+10,700New
FDx Advisors, Inc.11,088$969.0K0.07%−2,103−15.9%Reduced
Regatta Capital Group, LLC11,106$970.6K0.26%+166+1.5%Added
Bellwether Advisors, LLC11,125$972.2K0.24%+3,320+42.5%Added
Motley Fool Asset Management LLC11,223$980.8K0.07%+722+6.9%Added
O'Shaughnessy Asset Management, LLC11,409$997.0K0.01%+3,182+38.7%Added
Legacy Advisors, LLC11,500$1.00M0.13%+261+2.3%Added
Credit Agricole S A11,554$1.01M0.02%+7,713+200.8%Added
Rockefeller Capital Management L.P.11,571$1.01M0.00%+11,571New
Atria Wealth Solutions, Inc.11,650$1.02M0.01%+1,145+10.9%Added
Roundview Capital LLC11,851$1.04M0.10%+854+7.8%Added
Vontobel Holding Ltd.11,894$1.04M0.01%+691+6.2%Added
Wealth Enhancement Advisory Services, LLC12,016$1.05M0.00%−2,477−17.1%Reduced
Fort Washington Investment Advisors Inc12,070$1.05M0.01%00.0%Unchanged
Banco Bilbao Vizcaya Argentaria, S.A.12,079$1.06M0.01%+401+3.4%Added
Toroso Investments, LLC12,097$1.06M0.03%+639+5.6%Added
SlateStone Wealth, LLC12,174$1.06M0.14%+282+2.4%Added
Benjamin F. Edwards & Company, Inc.12,189$1.06M0.02%+11,373+1,393.8%Added
FIL Ltd12,199$1.07M0.00%+811+7.1%Added
IVC Wealth Advisors LLC12,254$1.07M0.67%−122−1.0%Reduced
United Services Automobile Association12,302$1.08M0.02%+701+6.0%Added
Sequoia Financial Advisors, LLC12,519$1.09M0.01%+7,373+143.3%Added
Jump Financial, LLC12,768$1.12M0.04%+2,159+20.4%Added
Monumental Financial Group Inc.12,890$1.13M0.67%+326+2.6%Added
Northwestern Mutual Investment Management Company, LLC12,926$1.13M0.03%+38+0.3%Added
Krilogy Financial LLC12,955$1.13M0.10%−1,367−9.5%Reduced
Emerald Advisers, LLC12,986$1.13M0.05%−240−1.8%Reduced
Walleye Trading LLC13,099$1.14M0.02%+13,099New
Chicago Trust Co NA13,345$1.17M0.26%00.0%Unchanged
WoodTrust Financial Corp13,400$1.17M0.20%00.0%Unchanged
Chicago Partners Investment Group LLC14,001$1.17M0.05%−1,239−8.1%Reduced
APG Asset Management N.V.15,029$1.19M0.00%−401−2.6%Reduced
Raymond James Financial Services Advisors, Inc.13,640$1.19M0.00%+20+0.1%Added
RMR Wealth Builders13,888$1.21M0.17%00.0%Unchanged
Brown Brothers Harriman & Co13,904$1.22M0.01%+95+0.7%Added
Bokf, NA14,089$1.23M0.02%+2,030+16.8%Added
Verition Fund Management LLC14,153$1.24M0.01%+14,153New
Quantinno Capital Management LP14,378$1.26M0.04%−349−2.4%Reduced
Kentucky Retirement Systems Insurance Trust Fund14,548$1.27M0.09%−619−4.1%Reduced
Gilbert & Cook, Inc.14,571$1.27M0.18%+1,824+14.3%Added
Employees Retirement System of Texas14,634$1.28M0.01%+14,634New
EagleClaw Capital Managment, LLC14,700$1.28M0.27%00.0%Unchanged
Candriam Luxembourg S.C.A.14,770$1.29M0.01%−1,019−6.5%Reduced
Parallel Advisors, LLC14,958$1.31M0.04%+3,470+30.2%Added
QRG Capital Management, Inc.14,997$1.31M0.02%+600+4.2%Added
Alberta Investment Management Corp15,575$1.36M0.01%+6,675+75.0%Added
Conestoga Capital Advisors, LLC15,610$1.36M0.02%−220−1.4%Reduced
Kampmann Melissa S.15,760$1.38M1.18%+1,225+8.4%Added
Redwood Investments, LLC15,984$1.40M0.36%−1,708−9.7%Reduced
Ostrum Asset Management15,998$1.40M0.12%+1,599+11.1%Added
Patton Fund Management, Inc.16,264$1.42M0.32%−529−3.2%Reduced
Qsemble Capital Management, LP16,360$1.43M0.36%+16,360New
Ameritas Investment Partners, Inc.16,382$1.43M0.05%+204+1.3%Added
Metropolitan Life Insurance Co16,621$1.45M0.07%−273−1.6%Reduced
Prudential PLC17,027$1.49M0.02%−39−0.2%Reduced
Harbor Advisors LLC17,060$1.49M0.29%+7,000+69.6%Added
Alps Advisors Inc17,605$1.54M0.01%−1,513−7.9%Reduced
Atlantic Union Bankshares Corp17,606$1.54M0.14%+2,536+16.8%Added
Metis Global Partners, LLC17,683$1.55M0.06%−1,147−6.1%Reduced
Norinchukin Bank, The17,732$1.55M0.04%−2,193−11.0%Reduced
Cobblestone Capital Advisors LLC17,877$1.56M0.10%−138,732−88.6%Reduced
Siemens Fonds Invest GmbH18,047$1.58M0.13%+1,048+6.2%Added
Procyon Private Wealth Partners, LLC18,106$1.58M0.13%+1,843+11.3%Added
Sapient Capital LLC18,226$1.59M0.04%+18,226New
Dai-Ichi Life Insurance Company, Ltd18,425$1.61M0.03%−386−2.1%Reduced
Redmond Asset Management, LLC18,501$1.62M0.52%−850−4.4%Reduced
Bessemer Group Inc18,561$1.62M0.00%+135+0.7%Added
Markel Group Inc.SuperinvestorMarkel Group18,600$1.63M0.02%00.0%Unchanged
American Assets Capital Advisers, LLC18,669$1.63M0.46%−6,000−24.3%Reduced
Teacher Retirement System of Texas18,782$1.64M0.01%−12,874−40.7%Reduced
Stephens Inc18,843$1.65M0.03%−13,681−42.1%Reduced
NEOS Investment Management LLC18,924$1.65M0.16%+1,113+6.2%Added
Institute for Wealth Management, LLC.19,401$1.70M0.28%+735+3.9%Added
Exchange Traded Concepts, LLC19,596$1.71M0.05%+6,143+45.7%Added
ExodusPoint Capital Management, LP20,039$1.75M0.02%−34,893−63.5%Reduced
Quest Investment Management LLC20,058$1.75M0.22%−141,315−87.6%Reduced
Next Century Growth Investors LLC20,134$1.76M0.17%−14,276−41.5%Reduced