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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
STRS Ohio116,000$8.30M0.03%−62,500−35.0%Reduced
Holocene Advisors, LP114,310$8.18M0.03%+8,728+8.3%Added
Mirae Asset Global Investments Co., Ltd.109,696$7.92M0.03%−15,202−12.2%Reduced
Guggenheim Capital LLC108,755$7.79M0.06%−2,285−2.1%Reduced
MetLife Investment Management108,433$7.76M0.04%+1,942+1.8%Added
Artemis Investment Management LLP107,623$7.70M0.11%−224,026−67.5%Reduced
Azzad Asset Management Inc106,764$7.64M1.47%+4,949+4.9%Added
Azimuth Capital Investment Management LLC106,041$7.59M0.30%−4,023−3.7%Reduced
Bank Julius Baer & Co. Ltd, Zurich103,987$7.53M0.02%+12,292+13.4%Added
Equitable Trust Co102,084$7.31M0.41%+13,539+15.3%Added
Thematics Asset Management101,671$7.28M0.32%−4,143−3.9%Reduced
Night Owl Capital Management, LLC101,649$7.28M0.94%+2,747+2.8%Added
Fiera Capital Corp99,909$7.15M0.02%+10,942+12.3%Added
Sumitomo Mitsui DS Asset Management Company, Ltd98,252$7.03M0.07%+4,754+5.1%Added
Jefferies Financial Group Inc.98,108$7.02M0.08%+63,948+187.2%Added
Handelsbanken Fonder AB95,968$6.87M0.03%−17,728−15.6%Reduced
Nissay Asset Management Corp92,109$6.65M0.04%+3,665+4.1%Added
Fred Alger Management, LLC92,787$6.64M0.03%−196,269−67.9%Reduced
KBC Group NV92,730$6.64M0.02%+8,907+10.6%Added
The PNC Financial Services Group, Inc.91,486$6.55M0.00%−12,061−11.6%Reduced
First Foundation Advisors91,016$6.52M0.25%+23,248+34.3%Added
Czech National Bank88,888$6.36M0.06%+5,404+6.5%Added
Retirement Systems of Alabama88,759$6.35M0.02%−779−0.9%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys87,170$6.24M0.04%−2,043−2.3%Reduced
Glenmede Trust Co NA86,982$6.23M0.03%+83,317+2,273.3%Added
Skandinaviska Enskilda Banken AB (publ)84,811$6.09M0.03%+4,300+5.3%Added
Daiwa Securities Group Inc.85,023$6.09M0.03%+5,444+6.8%Added
Hantz Financial Services, Inc.84,313$6.04M0.11%+80,505+2,114.1%Added
Dash Acquisitions Inc.78,438$5.97M1.27%+78,438New
Forsta Ap-Fonden83,300$5.96M0.04%+1,300+1.6%Added
Motley Fool Asset Management LLC83,242$5.96M0.31%+7,712+10.2%Added
Umb Bank N A82,653$5.92M0.09%+4,778+6.1%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund81,770$5.85M0.06%+12,200+17.5%Added
Comerica Bank80,548$5.77M0.02%−29,431−26.8%Reduced
Sterling Capital Management LLC79,679$5.70M0.08%−26,140−24.7%Reduced
British Columbia Investment Management Corp78,485$5.62M0.03%+10,335+15.2%Added
Amalgamated Bank78,423$5.61M0.05%−1,897−2.4%Reduced
State of Tennessee, Treasury Department78,173$5.60M0.02%−3,643−4.5%Reduced
Toroso Investments, LLC78,027$5.59M0.05%+4,843+6.6%Added
GF Fund Management Co. Ltd.77,696$5.56M0.12%+77,696New
MML Investors Services, LLC76,567$5.48M0.02%−9,442−11.0%Reduced
Prana Capital Management, LP76,482$5.48M0.26%−94,500−55.3%Reduced
IFM Investors Pty Ltd75,676$5.42M0.06%−7,190−8.7%Reduced
Westfield Capital Management Co LP75,081$5.38M0.02%−1,290,427−94.5%Reduced
Neuberger Berman Group LLC74,732$5.35M0.00%−1,281−1.7%Reduced
USS Investment Management Ltd73,788$5.28M0.04%−4,992−6.3%Reduced
Nomura Holdings Inc72,652$5.20M0.03%+57,179+369.5%Added
Davenport & Co LLC72,403$5.18M0.03%−835−1.1%Reduced
Shell Asset Management Co71,048$5.09M0.22%00.0%Unchanged
Platinum Investment Management Ltd70,000$5.01M0.29%+20,000+40.0%Added
Van Eck Associates Corp69,788$5.00M0.01%−2,558−3.5%Reduced
US Bancorp69,726$4.99M0.01%−5,139−6.9%Reduced
Hahn Capital Management LLC69,105$4.95M2.17%+69,105New
Regions Financial Corp67,449$4.83M0.04%−1,257−1.8%Reduced
Utah Retirement Systems67,180$4.81M0.05%00.0%Unchanged
Taikang Asset Management (Hong Kong) Co Ltd66,766$4.78M0.70%−45,622−40.6%Reduced
New Age Alpha Advisors, LLC65,295$4.67M0.19%+65,295New
Baer Investment Advisory LLC52,470$4.52M6.76%+52,470New
ING Groep NV62,376$4.47M0.03%+62,376New
Boston Private Wealth LLC62,164$4.45M0.08%+62,164New
American Century Companies Inc61,350$4.39M0.00%+2,041+3.4%Added
Katamaran Capital LLP61,235$4.38M5.87%+61,235New
Tsai Capital Corp61,058$4.37M3.18%+136+0.2%Added
Blue Zone Wealth Advisors, LLC59,673$4.27M1.23%+4,369+7.9%Added
Police & Firemen's Retirement System of New Jersey58,957$4.22M0.04%+58,957New
Janus Henderson Group PLC58,428$4.18M0.00%−6,568,801−99.1%Reduced
Lakehouse Capital Pty Ltd58,408$4.18M2.82%00.0%Unchanged
Mutual of America Capital Management LLC57,775$4.14M0.04%+7,311+14.5%Added
Schroder Investment Management Group57,433$4.11M0.00%−1,144−2.0%Reduced
Xponance, Inc.56,155$4.02M0.04%+957+1.7%Added
Nisa Investment Advisors, LLC56,079$4.01M0.02%−6,483−10.4%Reduced
Pacer Advisors, Inc.55,337$3.96M0.01%+4,716+9.3%Added
New York Life Investment Management LLC54,782$3.92M0.04%+446+0.8%Added
Verition Fund Management LLC54,691$3.92M0.02%+954+1.8%Added
HighTower Advisors, LLC54,629$3.91M0.01%+12,521+29.7%Added
Atria Investments LLC53,556$3.83M0.05%+22,575+72.9%Added
CWM Advisors, LLC52,295$3.74M0.42%−2,381−4.4%Reduced
Louisiana State Employees Retirement System52,000$3.72M0.07%−2,400−4.4%Reduced
Insight Wealth Strategies, LLC51,815$3.71M0.50%+1,632+3.3%Added
Narwhal Capital Management51,725$3.70M0.33%+51,725New
Shelton Capital Management51,413$3.68M0.09%00.0%Unchanged
Bank of Nova Scotia50,116$3.59M0.01%+2,537+5.3%Added
Intrinsic Edge Capital Management LLC50,000$3.58M0.49%+50,000New
NEOS Investment Management LLC49,379$3.54M0.08%+9,553+24.0%Added
Yousif Capital Management, LLC49,104$3.52M0.04%−2,047−4.0%Reduced
S.E.E.D. Planning Group LLC48,345$3.46M1.16%+3,184+7.1%Added
State of Alaska, Department of Revenue46,741$3.35M0.04%−800−1.7%Reduced
Capstone Investment Advisors, LLC45,932$3.29M0.03%+10,200+28.5%Added
Pitcairn Co44,964$3.22M0.19%−752−1.6%Reduced
North Star Asset Management Inc44,462$3.18M0.14%+1,879+4.4%Added
iA Global Asset Management Inc.44,187$3.16M0.06%+2,411+5.8%Added
Envestnet Portfolio Solutions, Inc.44,119$3.16M0.01%−5,927−11.8%Reduced
Pathstone Holdings, LLC43,176$3.09M0.01%+7,317+20.4%Added
Gateway Investment Advisers LLC43,077$3.08M0.03%+12,692+41.8%Added
Linden Thomas Advisory Services, LLC42,998$3.08M0.39%−317−0.7%Reduced
Mariner, LLC42,577$3.05M0.01%−39,121−47.9%Reduced
Cerity Partners LLC41,602$3.02M0.01%+27,049+185.9%Added
Knollwood Investment Advisory, LLC41,863$3.00M0.31%00.0%Unchanged
Public Employees Retirement Association of Colorado41,399$2.96M0.01%−843−2.0%Reduced
Connor, Clark & Lunn Investment Management Ltd.40,007$2.86M0.01%+32,165+410.2%Added