13F

Stock

Costar Group, Inc.

CSGP · held by 845 managers

Reported value

$26.7B

Holders

845

+3 new · −5 exited

Holders’ est. mark

−$238.1M

Price effect on 5 books still in the name

Largest holder

$4.71B

Vanguard

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Vanguard70.1M$4.71B—Held
BlackRock, Inc.34M$2.28B—Held
BAMCO INC /NY/19.5M$1.31B—Held
State Street18.6M$1.25B—Held
PRINCIPAL FINANCIAL GROUP INC17.6M$1.18B—Held
BAILLIE GIFFORD & CO12.9M$869.6M—Held
GEODE CAPITAL MANAGEMENT, LLC12.2M$816.2M—Held
Capital International Investors10.8M$729M—Held
AKRE CAPITAL MANAGEMENT LLC9.62M$646.7M—Held
JANUS HENDERSON GROUP PLC7.47M$502.5M—Held
NORGES BANK7.09M$476.8M−$63.2MAdded$59.3M
Capital Research Global Investors5.57M$374.3M—Held
Invesco Ltd.5.39M$362.2M—Held
MORGAN STANLEY5.29M$355.8M−$90.6MCut−$365M
POLEN CAPITAL MANAGEMENT LLC4.89M$328.9M—Held
MIZUHO MARKETS AMERICAS LLC4.42M$296.9M—Held
Amundi4.11M$276.7M—Held
Bank of New York Mellon Corp4.11M$276.6M—Held
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.3.91M$262.9M—Held
GOLDMAN SACHS GROUP INC3.75M$252.3M—Held
Nuveen, LLC3.56M$239.4M—Held
BANK OF AMERICA CORP /DE/3.5M$235.7M−$60MCut−$76.2M
NORTHERN TRUST CORP3.47M$233.1M—Held
Third Point3.17M$212.8M—Held
MASSACHUSETTS FINANCIAL SERVICES CO /MA/3.16M$212.5M—Held
Legal & General Group Plc2.86M$192.4M—Held
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2.66M$179.1M—Held
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC2.43M$163.6M—Held
BARCLAYS PLC2.32M$156.1M−$21.7MAdded$49.3M
DIMENSIONAL FUND ADVISORS LP2.32M$156M—Held
Tiger Global2.26M$151.9M—Held
Fayez Sarofim & Co2.24M$150.7M—Held
BECK MACK & OLIVER LLC2.22M$149.6M—Held
UBS Group AG2.11M$142M—Held
BLAIR WILLIAM & CO/IL2.02M$136.1M—Held
DF DENT & CO INC2.01M$135M—Held
RGM Capital, LLC2M$134.2M—Held
BROWN ADVISORY INC1.91M$128.2M—Held
JUPITER ASSET MANAGEMENT LTD1.86M$125.3M—Held
DEUTSCHE BANK AG\1.78M$119.4M—Held
MACKENZIE FINANCIAL CORP1.66M$112.5M—Held
TREMBLANT CAPITAL GROUP1.64M$110M—Held
Spyglass Capital Management LLC1.58M$106.1M—Held
CITIGROUP INC1.5M$101M—Held
RIVERBRIDGE PARTNERS LLC1.45M$97.7M—Held
Viking Global1.44M$97M—Held
CIBC Private Wealth Group LLC1.36M$91.6M—Held
ENVESTNET ASSET MANAGEMENT INC1.34M$89.8M—Held
FEDERATED HERMES, INC.1.32M$89M—Held
ROYAL BANK OF CANADA1.31M$87.9M—Held
NOMURA HOLDINGS INC1.23M$83M—Held
Fidelity1.2M$80.8M—Held
Capitolis Liquid Global Markets LLC1.18M$79.6M—Held
FRANKLIN RESOURCES INC1.16M$78.2M—Held
Swiss National Bank1.16M$78.1M—Held
Stephens Investment Management Group LLC1.11M$75M—Held
Pictet Asset Management Holding SA1.06M$71M—Held
Mitsubishi UFJ Asset Management Co., Ltd.1.06M$69.4M—Held
Sumitomo Mitsui Trust Group, Inc.999.7K$67.2M—Held
BNP PARIBAS FINANCIAL MARKETS997.8K$67.1M—Held
HSBC HOLDINGS PLC987.3K$66.4M—Held
ShawSpring Partners LLC957.6K$64.4M—Held
Harding Loevner LP920.3K$61.9M—Held
D. E. Shaw & Co., Inc.905.5K$60.9M—Held
KENSICO CAPITAL MANAGEMENT CORP901.6K$60.6M—Held
WELLS FARGO & COMPANY/MN881K$59.2M—Held
Focus Partners Wealth841.1K$56.6M—Held
Chicago Capital, LLC827.1K$55.6M—Held
AMERICAN CAPITAL MANAGEMENT INC825.3K$55.5M—Held
SG Capital Management LLC811.2K$54.5M—Held
TimesSquare Capital Management, LLC809.3K$54.4M—Held
Squarepoint Ops LLC795.6K$53.5M—Held
JPMORGAN CHASE & CO772K$51.9M—Held
RHUMBLINE ADVISERS768.8K$51.7M—Held
ProShare Advisors LLC753.7K$50.7M—Held
PEREGRINE CAPITAL MANAGEMENT LLC748.9K$50.4M—Held
CANADA PENSION PLAN INVESTMENT BOARD741.4K$49.9M—Held
California Public Employees Retirement System732K$49.2M—Held
WEITZ INVESTMENT MANAGEMENT, INC.719.9K$48.4M—Held
FIRST TRUST ADVISORS LP703.4K$47.3M—Held
Douglas Lane & Associates, LLC683.1K$45.9M—Held
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM682.6K$45.9M—Held
National Pension Service682.1K$45.9M—Held
FIL Ltd639.9K$43M—Held
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC635.7K$42.7M—Held
Petrus Trust Company, LTA629.2K$42.3M—Held
SEI INVESTMENTS CO621.8K$41.8M—Held
Junto Capital Management LP616K$41.4M—Held
AMERIPRISE FINANCIAL INC615K$41.4M—Held
Citadel604.5K$40.6M—Held
MILLENNIUM MANAGEMENT LLC602K$40.5M—Held
Caisse de depot et placement du Quebec587.1K$39.5M—Held
Ensign Peak Advisors, Inc578.4K$38.9M—Held
Russell Investments Group, Ltd.547.6K$36.8M—Held
RAYMOND JAMES FINANCIAL INC509.4K$34.2M—Held
Mitsubishi UFJ Trust & Banking Corp477.8K$32.1M—Held
ION Fund Management Ltd461K$31M—Held
TD Asset Management Inc457.6K$30.8M—Held
BANK OF MONTREAL /CAN/454K$30.5M—Held
GENEVA CAPITAL MANAGEMENT LLC450.8K$30.3M—Held
NZS Capital, LLC441.4K$29.7M—Held
ALLIANCEBERNSTEIN L.P.422.2K$28.4M—Held
Sone Capital Management, LLC417.1K$28M—Held
ROYAL LONDON ASSET MANAGEMENT LTD409.6K$27.5M—Held
MARSHALL WACE, LLP391.3K$26.3M—Held
ADAGE CAPITAL PARTNERS GP, L.L.C.382.6K$25.7M—Held
Clearbridge Investments, LLC382.1K$25.7M—Held
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM376K$25.3M—Held
Ironvine Capital Partners, LLC371.2K$25M—Held
Icahn Capital369.4K$24.8M—Held
YCG, LLC359.2K$24.2M—Held
Ninety One UK Ltd354.8K$23.9M—Held
NATIONAL BANK OF CANADA /FI/353.6K$23.8M—Held
LGT Group Foundation347.7K$23.6M—Held
Fiera Capital Corp350.9K$23.6M—Held
CI INVESTMENTS INC.343.5K$23.1M—Held
Aureus Asset Management, LLC337.1K$22.7M—Held
VICTORY CAPITAL MANAGEMENT INC335K$22.5M—Held
Ulysses Management LLC330.5K$22.2M—Held
Erste Asset Management GmbH320K$21.5M—Held
Prana Capital Management, LP316.9K$21.3M—Held
Aberdeen Group plc310.1K$20.8M—Held
Swedbank AB303.2K$20.4M—Held
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.301.2K$20.3M—Held
NEOS Investment Management LLC291K$19.6M—Held
AVIVA PLC282.2K$19M—Held
PARNASSUS INVESTMENTS, LLC272.7K$18.3M—Held
Universal- Beteiligungs- und Servicegesellschaft mbH268.4K$18.1M—Held
FIRST CITIZENS BANK & TRUST CO257.4K$17.3M—Held
MANUFACTURERS LIFE INSURANCE COMPANY, THE252.2K$17M—Held
ASHFORD CAPITAL MANAGEMENT INC248K$16.7M—Held
Envestnet Portfolio Solutions, Inc.245.2K$16.5M—Held
Rafferty Asset Management, LLC242.8K$16.3M—Held
ThornTree Capital Partners LP242K$16.3M—Held
STIFEL FINANCIAL CORP241.7K$16.3M—Held
GILDER GAGNON HOWE & CO LLC240K$16.1M—Held
No Street GP LP240K$16.1M—Held
OPPENHEIMER ASSET MANAGEMENT INC.240K$16.1M—Held
JANE STREET GROUP, LLC237.4K$16M—Held
TRAN CAPITAL MANAGEMENT, L.P.233.3K$15.7M—Held
STATE OF WISCONSIN INVESTMENT BOARD228.5K$15.4M—Held
NEW YORK STATE COMMON RETIREMENT FUND227.8K$15.3M—Held
Man Group plc225.3K$15.1M—Held
UMB Bank, n.a.224.6K$15.1M—Held
KORNITZER CAPITAL MANAGEMENT INC /KS224.4K$15.1M—Held
Quantum Capital Management, LLC / NJ218.6K$14.7M—Held
DANSKE BANK A/S218.4K$14.7M−$2.56MCut−$949.7K
Chevy Chase Trust Holdings, LLC215.1K$14.5M—Held
NS Partners Ltd215K$14.5M—Held
Visualize Group LP214.4K$14.4M—Held
NICHOLAS COMPANY, INC.214.2K$14.4M—Held
PRUDENTIAL FINANCIAL INC212K$14.3M—Held
Mirae Asset Global Investments Co., Ltd.210.1K$14.1M—Held
Korea Investment CORP205.1K$13.8M—Held
TUDOR INVESTMENT CORP ET AL205K$13.8M—New
Motley Fool Wealth Management, LLC203.4K$13.7M—Held
Quantinno Capital Management LP202.1K$13.6M—Held
Freestone Grove Partners LP201.2K$13.5M—Held
CIBC Asset Management Inc199.9K$13.4M—Held
SUSQUEHANNA INTERNATIONAL GROUP, LLP194.7K$13.1M—Held
Foster Victor Wealth Advisors, LLC198K$12.9M—Held
CIBC WORLD MARKETS CORP186.1K$12.5M—Held
APG Asset Management N.V.218.4K$12.5M—Held
Asset Management One Co., Ltd.183.4K$12.4M—Held
CORTLAND ASSOCIATES INC/MO183.1K$12.3M—Held
Allspring Global Investments Holdings, LLC182.9K$12M—Held
Zurcher Kantonalbank (Zurich Cantonalbank)178K$12M—Held
BSN CAPITAL PARTNERS Ltd150.9K$11.8M—Held
OSSIAM173.9K$11.7M—Held
NEUBERGER BERMAN GROUP LLC169.7K$11.4M—Held
Badgley Phelps Wealth Managers, LLC166.3K$11.2M—Held
CREDIT AGRICOLE S A165.7K$11.1M—Held
JENNISON ASSOCIATES LLC165K$11.1M—Held
LBP AM SA164.9K$11.1M—Held
Clearstead Advisors, LLC160.5K$10.8M—Held
NOMURA ASSET MANAGEMENT CO LTD155.9K$10.5M—Held
LANDMARK INVESTMENT PARTNERS, L.P.154.5K$10.4M—Held
KLP KAPITALFORVALTNING AS153.3K$10.3M—Held
TORONTO DOMINION BANK152.2K$10.2M—Held
Cetera Investment Advisers151K$10.2M—Held
PRIMECAP MANAGEMENT CO/CA/151K$10.2M—Held
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND146.5K$9.85M—Held
State of New Jersey Common Pension Fund D145.3K$9.77M—Held
ExodusPoint Capital Management, LP139.3K$9.37M—Held
Lansforsakringar Fondforvaltning AB (publ)136K$9.15M—Held
Gotham Asset Management, LLC130.3K$8.76M—Held
HighTower Advisors, LLC128.5K$8.64M—Held
Vanderbilt University127.3K$8.56M—Held
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO126.8K$8.53M—Held
Resona Asset Management Co.,Ltd.125.3K$8.43M—Held
Lighthouse Investment Partners, LLC124.5K$8.37M—Held
Clearline Capital LP118K$7.94M—Held
LPL Financial LLC117.4K$7.9M—Held
STATE OF MICHIGAN RETIREMENT SYSTEM116.8K$7.85M—Held
ARIZONA STATE RETIREMENT SYSTEM116.4K$7.83M—Held
NISSAY ASSET MANAGEMENT CORP /JAPAN114.9K$7.73M—Held
FRED ALGER MANAGEMENT, LLC112.4K$7.55M—Held
Czech National Bank111.8K$7.51M—Held
GUGGENHEIM CAPITAL LLC108.8K$7.32M—Held
Night Owl Capital Management, LLC108.6K$7.3M—Held
2Xideas AG108.3K$7.28M—Held
PUBLIC SECTOR PENSION INVESTMENT BOARD107.9K$7.26M—Held
State of Tennessee, Department of Treasury116.5K$7.16M—Held
KELLY LAWRENCE W & ASSOCIATES INC/CA106.3K$7.15M—Held
ABN AMRO INVESTMENT SOLUTIONS104.3K$7.02M—Held
MetLife Investment Management, LLC104K$6.99M—Held
Greenvale Capital LLP100K$6.72M—Held
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS98.6K$6.63M—Held
Azimuth Capital Investment Management LLC94.1K$6.32M—Held
EQUITABLE TRUST CO93.6K$6.29M—Held
MML INVESTORS SERVICES, LLC92.3K$6.2M—Held
Granahan Investment Management, LLC91.9K$6.18M—Held
Cerity Partners LLC91.5K$6.16M—Held
Retirement Systems of Alabama90.2K$6.06M—Held
GF FUND MANAGEMENT CO. LTD.89.4K$6.01M—Held
Itau Unibanco Holding S.A.87.7K$5.9M—Held
Corient Private Wealth LLC87K$5.85M—Held
DNB Asset Management AS85.2K$5.73M—Held
VOYA INVESTMENT MANAGEMENT LLC84.7K$5.69M—Held
FORSTA AP-FONDEN82.4K$5.54M—Held
TRUIST FINANCIAL CORP82.2K$5.53M—Held
Skandinaviska Enskilda Banken AB (publ)81.3K$5.46M—Held
BANK OF NOVA SCOTIA81K$5.45M—Held
STRS OHIO81K$5.45M—Held
Rakuten Investment Management, Inc.78.6K$5.31M—Held
STOREBRAND ASSET MANAGEMENT AS77.7K$5.23M—Held
FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND77.7K$5.22M—Held
GLENMEDE TRUST CO NA77K$5.18M—Held
AMERICAN CENTURY COMPANIES INC76.6K$5.15M—Held
PNC Financial Services Group, Inc.76.3K$5.13M—Held
BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp75.1K$5.05M—Held
USS Investment Management Ltd74.6K$5.02M—Held
HB Wealth Management, LLC73.8K$4.96M—Held
Woodline Partners LP72.3K$4.86M—Held
LOS ANGELES CAPITAL MANAGEMENT LLC69.4K$4.83M—Held
Sumitomo Mitsui DS Asset Management Company, Ltd71.6K$4.81M—Held
Blue Zone Wealth Advisors, LLC71.6K$4.81M—Held
LOUISBOURG INVESTMENTS INC.90.3K$4.74M—Held
MACQUARIE GROUP LTD69.7K$4.69M—Held
Dash Acquisitions Inc.88.8K$4.65M—Held
Utah Retirement Systems68.9K$4.63M—Held
Robeco Institutional Asset Management B.V.68.2K$4.58M—Held
XPONANCE LLC67.2K$4.52M—Held
EXCHANGE TRADED CONCEPTS, LLC66.9K$4.5M—Held
SVB WEALTH LLC66.4K$4.47M—Held
PLATINUM INVESTMENT MANAGEMENT LTD65K$4.37M—Held
ING GROEP NV64.8K$4.36M—Held
US BANCORP \DE\64.5K$4.34M—Held
Pacer Advisors, Inc.64.3K$4.33M—Held
Eurizon Capital SGR S.p.A.64.3K$4.32M—Held

Who left

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.