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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 2022

Institutional positions in Costar Group, Inc. as of Dec 31, 2022. 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
704
+81 vs. Q3 2022
Shares held
393.9M
−7.92M (−2.0%) vs. Q3 2022
Total value
$30.4B
+$2.34B (+8.4%) vs. Q3 2022
New holders
131
269 more added
Sold out
50
227 more reduced

11 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2022: 704 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 2022: $30.4B
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 2022

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q3 2022.

Institutions holding CSGP in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
CI Private Wealth, LLC32,903$2.55M0.01%+32,903New
George Kaiser Family Foundation32,346$2.50M0.37%00.0%Unchanged
Magnetar Financial LLC32,150$2.48M0.04%+32,150New
Barbara Oil Co.32,000$2.47M1.18%00.0%Unchanged
Cinctive Capital Management LP31,820$2.46M0.13%+31,820New
Maryland State Retirement & Pension System31,715$2.45M0.07%+1,240+4.1%Added
Bell Bank31,571$2.44M0.28%−462−1.4%Reduced
SG Americas Securities, LLC31,553$2.44M0.04%+17,371+122.5%Added
Tsai Capital Corp31,243$2.41M3.50%−3,183−9.2%Reduced
Kentucky Retirement Systems31,130$2.41M0.09%+136+0.4%Added
Caisse de Depot Et Placement du Quebec30,967$2.39M0.01%+3,800+14.0%Added
EFG Asset Management (Americas) Corp.30,924$2.39M0.59%+8,040+35.1%Added
Elo Mutual Pension Insurance Co30,665$2.37M0.08%+905+3.0%Added
GPM Growth Investors, Inc.30,439$2.35M1.43%−111−0.4%Reduced
Highland Capital Management, LLC30,023$2.32M0.16%−322−1.1%Reduced
Westpac Banking Corp30,014$2.32M0.03%+909+3.1%Added
Kestra Advisory Services, LLC29,567$2.28M0.02%+10,715+56.8%Added
Lazard Asset Management LLC28,526$2.20M0.00%+28,504+129,563.6%Added
Greenland Capital Management LP28,262$2.18M0.40%+28,262New
Vestmark Advisory Solutions, Inc.27,910$2.16M0.11%−1,130−3.9%Reduced
Aurora Investment Managers, LLC.27,384$2.12M2.12%−920−3.3%Reduced
Dai-Ichi Life Insurance Company, Ltd26,811$2.07M0.05%+3,000+12.6%Added
Vetamer Capital Management, L.P.26,736$2.07M2.86%−4,327−13.9%Reduced
M&T Bank Corp26,323$2.03M0.01%+7,733+41.6%Added
Thrivent Financial for Lutherans26,188$2.02M0.01%+9,300+55.1%Added
LMCG Investments, LLC26,087$2.02M0.14%−392−1.5%Reduced
Wealthfront Advisers LLC26,004$2.01M0.01%+2,581+11.0%Added
Sumitomo Life Insurance Co25,654$1.98M0.15%−441−1.7%Reduced
JustInvest LLC25,509$1.97M0.08%+1,398+5.8%Added
Profund Advisors LLC25,283$1.95M0.13%+17,510+225.3%Added
Nordea Investment Management AB24,391$1.88M0.00%+630+2.7%Added
Industrial Alliance Investment Management Inc.23,555$1.82M0.05%+23,555New
Norinchukin Bank, The23,446$1.81M0.04%+5,985+34.3%Added
American Assets Capital Advisers, LLC23,200$1.79M0.43%+23,200New
J. Goldman & Co LP22,994$1.78M0.13%+13,512+142.5%Added
Commonwealth Equity Services, LLC22,922$1.77M0.00%+1,986+9.5%Added
Metropolitan Life Insurance Co22,566$1.74M0.08%−587−2.5%Reduced
LGT Group Foundation22,325$1.73M0.05%+22,325New
Twin Tree Management, LP22,277$1.72M0.05%−76,551−77.5%Reduced
Quantamental Technologies LLC21,818$1.69M0.77%+21,818New
Malaga Cove Capital, LLC21,649$1.67M0.91%+1,155+5.6%Added
Stephens Inc21,459$1.66M0.03%00.0%Unchanged
Crossmark Global Holdings, Inc.20,704$1.60M0.04%+9,268+81.0%Added
Captrust Financial Advisors20,544$1.59M0.01%+4,939+31.7%Added
Acadian Asset Management LLC20,203$1.56M0.01%+18,856+1,399.9%Added
Brinker Capital Investments, LLC20,122$1.56M0.03%−790−3.8%Reduced
Chartwell Investment Partners, LLC20,102$1.55M0.06%−43−0.2%Reduced
DuPont Capital Management Corp19,912$1.54M0.07%−1,432−6.7%Reduced
Allstate Corp19,847$1.53M0.05%+65+0.3%Added
Allstate Investment Management Co19,847$1.53M0.05%+19,847New
Redmond Asset Management, LLC19,840$1.53M0.55%−315−1.6%Reduced
Baker Tilly Wealth Management, LLC19,647$1.52M0.19%+6,366+47.9%Added
New Mexico Educational Retirement Board19,400$1.50M0.08%−900−4.4%Reduced
Prudential PLC19,079$1.47M0.02%+11,427+149.3%Added
Institute for Wealth Management, LLC.19,054$1.47M0.31%−267−1.4%Reduced
Candriam Luxembourg S.C.A.18,819$1.45M0.01%00.0%Unchanged
Krilogy Financial LLC18,701$1.45M0.14%−6,483−25.7%Reduced
Markel Group Inc.SuperinvestorMarkel Group18,600$1.44M0.02%00.0%Unchanged
Meeder Asset Management Inc18,493$1.43M0.13%−62,266−77.1%Reduced
D.A. Davidson & Co.18,277$1.41M0.02%−557−3.0%Reduced
Redwood Investments, LLC18,206$1.41M0.19%+558+3.2%Added
Voya Financial Advisors, Inc.18,036$1.40M0.18%−6,085−25.2%Reduced
DoubleLine ETF Adviser LP17,990$1.39M0.71%+17,990New
Tower Research Capital LLC (TRC)17,946$1.39M0.06%−21,920−55.0%Reduced
Harvest Volatility Management LLC17,176$1.33M0.27%+17,176New
EagleClaw Capital Managment, LLC16,910$1.31M0.32%+850+5.3%Added
Pitcairn Co16,808$1.30M0.13%+852+5.3%Added
Graham Capital Management, L.P.16,278$1.26M0.05%+16,278New
Conestoga Capital Advisors, LLC16,126$1.25M0.02%00.0%Unchanged
United Services Automobile Association15,952$1.23M0.03%+15,952New
Pacer Advisors, Inc.15,367$1.19M0.01%+14,560+1,804.2%Added
Creative Planning15,044$1.16M0.00%+2,195+17.1%Added
Coronation Fund Managers Ltd.15,044$1.16M0.03%+15,044New
Castleark Management LLC14,840$1.15M0.06%00.0%Unchanged
Icon Wealth Advisors, LLC14,429$1.12M0.13%−820−5.4%Reduced
Quantinno Capital Management LP14,236$1.10M0.08%+1,285+9.9%Added
Kentucky Retirement Systems Insurance Trust Fund14,190$1.10M0.10%00.0%Unchanged
Gould Capital, LLC14,133$1.09M0.87%−191−1.3%Reduced
B. Metzler seel. Sohn & Co. AG14,044$1.09M0.02%−550−3.8%Reduced
Panagora Asset Management Inc13,979$1.08M0.01%+2,152+18.2%Added
TownSquare Capital, LLC13,948$1.08M0.03%+3,594+34.7%Added
National Bank of Canada13,928$1.08M0.00%+12,161+688.2%Added
RMR Wealth Builders13,888$1.07M0.24%00.0%Unchanged
Stansberry Asset Management, LLC13,809$1.07M0.22%+331+2.5%Added
Ameritas Investment Partners, Inc.13,517$1.06M0.04%+8,644+177.4%Added
Raymond James Financial Services Advisors, Inc.13,682$1.06M0.00%+6,015+78.5%Added
Keybank National Association13,548$1.05M0.01%+1,352+11.1%Added
Winton Group Ltd13,524$1.05M0.07%+13,524New
Brown Brothers Harriman & Co13,480$1.04M0.01%−5,020−27.1%Reduced
Emerald Advisers, LLC13,471$1.04M0.05%−229−1.7%Reduced
Greenline Partners, LLC13,302$1.03M0.20%−4,916−27.0%Reduced
Chicago Trust Co NA13,150$1.02M0.25%00.0%Unchanged
IVC Wealth Advisors LLC13,070$1.01M0.74%+22+0.2%Added
Northwestern Mutual Investment Management Company, LLC12,747$985.1K0.03%−1,959−13.3%Reduced
Chicago Partners Investment Group LLC12,437$968.3K0.06%−135−1.1%Reduced
Heritage Wealth Management, LLC12,378$956.6K0.14%+6,377+106.3%Added
Capula Management Ltd12,180$941.3K0.10%+12,180New
Skylands Capital, LLC12,100$935.1K0.15%00.0%Unchanged
Fort Washington Investment Advisors Inc12,070$933.0K0.01%+12,070New
WoodTrust Financial Corp12,000$928.0K0.19%+250+2.1%Added