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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
National Pension Service493,226$38.1M0.07%+9,720+2.0%Added
Quantum Capital Management, LLC490,376$37.9M5.00%−17,473−3.4%Reduced
Geneva Capital Management LLC483,448$37.4M0.84%−18,671−3.7%Reduced
State Board of Administration of Florida Retirement System476,791$36.8M0.09%−12,940−2.6%Reduced
Ironvine Capital Partners, LLC475,459$36.7M4.76%−1,441−0.3%Reduced
Neuberger Berman Group LLC473,854$36.6M0.04%−1,377,100−74.4%Reduced
Ycg, LLC460,198$36.3M3.88%−107,354−18.9%Reduced
Credit Suisse AG467,132$36.1M0.04%+39,637+9.3%Added
HSBC Holdings PLC453,309$34.9M0.04%+172,031+61.2%Added
Robeco Institutional Asset Management B.V.440,063$34.0M0.10%+237,919+117.7%Added
Bank of Montreal437,511$34.0M0.03%+136,865+45.5%Added
Sandhill Capital Partners LLC420,394$32.5M3.47%−47,830−10.2%Reduced
Adage Capital Partners GP, L.L.C.413,700$32.0M0.08%+10,300+2.6%Added
ProShare Advisors LLC407,949$31.5M0.11%+312,199+326.1%Added
Mirae Asset Global Investments Co., Ltd.397,604$30.7M0.08%+319,622+409.9%Added
Truist Financial Corp376,360$29.1M0.05%−20,058−5.1%Reduced
Bridgewater Associates, LP373,677$28.9M0.16%−166,011−30.8%Reduced
New York State Teachers Retirement System369,565$28.6M0.07%+22,590+6.5%Added
Kornitzer Capital Management Inc362,709$28.0M0.57%−4,922−1.3%Reduced
Ashford Capital Management Inc358,789$27.7M4.30%+32,395+9.9%Added
BNP Paribas Arbitrage, SA349,461$27.0M0.07%+78,808+29.1%Added
Amundi329,850$26.6M0.01%+57,168+21.0%Added
Korea Investment CORP338,500$26.2M0.08%−46,073−12.0%Reduced
Allspring Global Investments Holdings, LLC337,716$26.1M0.04%−69,601−17.1%Reduced
Royal Bank of Canada318,038$24.6M0.01%+32,558+11.4%Added
Brown Advisory Inc317,234$24.5M0.05%−9,832−3.0%Reduced
Allianz Asset Management GmbH309,782$23.9M0.05%+264,326+581.5%Added
First Trust Advisors LP301,926$23.3M0.03%+210,890+231.7%Added
Manufacturers Life Insurance Company, The294,898$22.8M0.01%−3,938−1.3%Reduced
Royal London Asset Management Ltd288,311$22.3M0.10%+5,624+2.0%Added
Great West Life Assurance Co261,031$20.3M0.05%−50,350−16.2%Reduced
Scout Investments, Inc.260,367$20.1M0.41%+119,245+84.5%Added
Cercano Management LLC259,919$20.1M0.82%+259,919New
Asset Management One Co.,Ltd.256,839$19.9M0.10%+93,534+57.3%Added
Baskin Financial Services Inc.247,926$19.2M2.22%−7,040−2.8%Reduced
Motley Fool Wealth Management, LLC244,444$18.9M1.31%−483−0.2%Reduced
Public Employees Retirement System of Ohio242,500$18.7M0.08%+19,099+8.5%Added
Toronto Dominion Bank240,238$18.6M0.03%+10,770+4.7%Added
Chevy Chase Trust Holdings, Inc.233,992$18.1M0.08%−7,859−3.2%Reduced
State of New Jersey Common Pension Fund D232,109$17.9M0.07%00.0%Unchanged
Stifel Financial Corp226,220$17.5M0.03%−2,719−1.2%Reduced
Nissay Asset Management Corp222,927$17.2M0.16%−8,688−3.8%Reduced
Ninety One UK Ltd217,391$16.8M0.05%−12,328−5.4%Reduced
State of Wisconsin Investment Board217,326$16.8M0.05%−7,421−3.3%Reduced
CIBC Private Wealth Group, LLC1,206,266$16.5M0.06%+336,938+38.8%Added
Natixis Advisors, L.P.206,062$15.9M0.06%−8,255−3.9%Reduced
Intrinsic Edge Capital Management LLC199,216$15.4M1.66%−59,945−23.1%Reduced
Oppenheimer Asset Management Inc.198,069$15.3M0.25%−5,265−2.6%Reduced
Teachers Retirement System of the State of Kentucky196,762$15.2M0.16%−3,305−1.7%Reduced
AXA S.A.192,851$14.9M0.05%+170,086+747.1%Added
Susquehanna International Group, LLP192,383$14.9M0.03%+88,574+85.3%Added
AE Wealth Management LLC186,326$14.4M0.10%−6,268−3.3%Reduced
CIBC World Markets Corp183,764$14.2M0.10%+15,624+9.3%Added
Treasurer of the State of North Carolina180,904$14.0M0.09%+7,090+4.1%Added
Archon Partners LLC180,000$13.9M2.51%+8,000+4.7%Added
State of Alaska, Department of Revenue179,435$13.9M0.17%+61,370+52.0%Added
Select Equity Group, L.P.179,250$13.9M0.05%−116,081−39.3%Reduced
Boston Private Wealth LLC178,489$13.8M0.19%−2,967−1.6%Reduced
NS Partners Ltd177,187$13.7M0.83%+11,977+7.2%Added
Badgley Phelps Wealth Managers, LLC173,121$13.4M0.54%+2,607+1.5%Added
NZS Capital, LLC170,347$13.2M1.13%−23,102−11.9%Reduced
Voya Investment Management LLC166,870$12.9M0.01%−2,411−1.4%Reduced
AQR Capital Management LLC166,427$12.8M0.03%−8,661−4.9%Reduced
Swedbank AB164,645$12.7M0.03%−510.0%Reduced
Varma Mutual Pension Insurance Co161,851$12.5M0.18%+76,851+90.4%Added
Erste Asset Management GmbH160,000$12.4M0.26%+20,000+14.3%Added
Employees Retirement System of Texas159,000$12.3M0.18%00.0%Unchanged
Azimuth Capital Investment Management LLC158,590$12.3M0.62%+158,590New
Cobblestone Capital Advisors LLC156,750$12.1M0.92%−2,692−1.7%Reduced
Schonfeld Strategic Advisors LLC153,600$11.9M0.10%+39,248+34.3%Added
Handelsbanken Fonder AB150,899$11.7M0.07%−76,226−33.6%Reduced
Lakehouse Capital Pty Ltd149,756$11.6M11.48%00.0%Unchanged
Oribel Capital Management, LP149,700$11.6M2.68%+100,400+203.7%Added
American International Group, Inc.149,151$11.5M0.08%+38,911+35.3%Added
KBC Group NV145,755$11.3M0.05%−109,956−43.0%Reduced
Aviva PLC138,410$10.7M0.05%−28,835−17.2%Reduced
Gateway Investment Advisers LLC136,149$10.5M0.13%+3,541+2.7%Added
Gillson Capital LP135,334$10.5M0.79%+135,334New
2Xideas AG131,692$10.2M1.08%−15,663−10.6%Reduced
Retirement Systems of Alabama130,288$10.1M0.04%−1,228−0.9%Reduced
Northwestern Mutual Wealth Management Co125,426$9.69M0.01%+29,154+30.3%Added
Shell Asset Management Co124,038$9.59M0.42%+3,273+2.7%Added
Point72 Asset Management, L.P.121,355$9.38M0.04%−278,988−69.7%Reduced
Fernbridge Capital Management LP120,993$9.35M1.34%+120,993New
Voloridge Investment Management, LLC115,493$8.93M0.05%+115,493New
Advisor Group Holdings, Inc.112,935$8.73M0.02%−15,023−11.7%Reduced
Tredje AP-fonden112,357$8.68M0.15%+2,533+2.3%Added
Arizona State Retirement System112,076$8.66M0.08%+3,285+3.0%Added
Nomura Asset Management Co Ltd111,763$8.64M0.05%+18,735+20.1%Added
State of Michigan Retirement System110,500$8.54M0.06%+3,300+3.1%Added
MetLife Investment Management108,431$8.38M0.06%+1,068+1.0%Added
Amalgamated Bank107,139$8.28M0.07%+4,904+4.8%Added
Sumitomo Mitsui DS Asset Management Company, Ltd105,165$8.13M0.16%+221+0.2%Added
Man Group plc103,424$7.99M0.03%+99,468+2,514.4%Added
Standard Life Aberdeen plc102,655$7.93M0.02%+7,924+8.4%Added
Flossbach Von Storch AG101,542$7.85M0.03%−450−0.4%Reduced
CIBC Asset Management Inc100,169$7.74M0.03%+47,288+89.4%Added
Storebrand Asset Management AS99,214$7.67M0.04%+3,508+3.7%Added
Night Owl Capital Management, LLC97,002$7.50M3.49%−182,198−65.3%Reduced
1832 Asset Management L.P.94,600$7.31M0.02%+94,488+84,364.3%Added