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, Q2 2025
Institutional positions in Costar Group, Inc. as of Jun 30, 2025. 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
- 873
- +26 vs. Q1 2025
- Shares held
- 424.8M
- −3.49M (−0.8%) vs. Q1 2025
- Total value
- $34.2B
- +$258.5M (+0.8%) vs. Q1 2025
- New holders
- 101
- 355 more added
- Sold out
- 75
- 315 more reduced
11 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 760 | $11.7B |
| Q1 2026 | 797 | $16.8B |
| Q4 2025 | 847 | $28.4B |
| Q3 2025 | 905 | $34.9B |
| Q2 2025 | 873 | $34.2B |
| Q1 2025 | 858 | $33.9B |
| Q4 2024 | 805 | $28.9B |
| Q3 2024 | 773 | $30.0B |
| Q2 2024 | 767 | $29.3B |
| Q1 2024 | 767 | $38.4B |
| Q4 2023 | 737 | $34.4B |
| Q3 2023 | 690 | $30.1B |
| Q2 2023 | 714 | $35.5B |
| Q1 2023 | 692 | $26.7B |
| Q4 2022 | 704 | $30.4B |
| Q3 2022 | 634 | $28.0B |
| Q2 2022 | 591 | $23.0B |
| Q1 2022 | 589 | $25.2B |
| Q4 2021 | 633 | $29.6B |
| Q3 2021 | 594 | $32.3B |
| Q2 2021 | 607 | $31.1B |
| Q1 2021 | 593 | $31.2B |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Citigroup Inc | 832,687 | $66.9M | 0.05% | +133,262+19.1% | Added |
| Pictet Asset Management Holding SA | 915,075 | $73.6M | 0.07% | −14,030−1.5% | Reduced |
| D. E. Shaw & Co., Inc. | 916,388 | $73.7M | 0.07% | −3040.0% | Reduced |
| Baird Financial Group, Inc. | 920,768 | $74.0M | 0.13% | −41,500−4.3% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 926,020 | $74.5M | 0.06% | +58,463+6.7% | Added |
| SG Capital Management LLC | 940,155 | $75.6M | 6.43% | +940,155 | New |
| Chicago Capital, LLC | 964,290 | $77.5M | 1.91% | +20,335+2.2% | Added |
| Colony Group, LLC | 990,537 | $79.6M | 0.17% | +6,744+0.7% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,021,300 | $82.1M | 0.05% | +24,290+2.4% | Added |
| Ameriprise Financial Inc | 1,077,745 | $86.7M | 0.02% | −1,445,936−57.3% | Reduced |
| Nuveen, LLC | 1,081,903 | $87.0M | 0.02% | +37,397+3.6% | Added |
| Ion Asset Management Ltd. | 1,169,833 | $94.1M | 5.68% | +1,028,933+730.3% | Added |
| Barclays PLC | 1,171,306 | $94.2M | 0.04% | +127,638+12.2% | Added |
| Price T Rowe Associates Inc | 1,195,332 | $96.1M | 0.01% | +152,502+14.6% | Added |
| Bares Capital Management, Inc. | 1,214,652 | $97.7M | 9.48% | +81,650+7.2% | Added |
| Voya Investment Management LLC | 1,231,771 | $99.0M | 0.10% | +13,217+1.1% | Added |
| Royal Bank of Canada | 1,274,804 | $102.5M | 0.02% | −108,379−7.8% | Reduced |
| Swiss National Bank | 1,276,765 | $102.7M | 0.06% | +88,600+7.5% | Added |
| BNP Paribas Arbitrage, SA | 1,279,270 | $102.9M | 0.08% | −381,613−23.0% | Reduced |
| Kensico Capital Management Corp | 1,282,400 | $103.1M | 1.98% | −48,900−3.7% | Reduced |
| FMR LLC | 1,295,877 | $104.2M | 0.01% | −342,770−20.9% | Reduced |
| Wells Fargo & Company | 1,331,162 | $107.0M | 0.02% | +98,411+8.0% | Added |
| ShawSpring Partners LLC | 1,356,060 | $109.0M | 13.76% | +207,758+18.1% | Added |
| Harding Loevner LP | 1,467,080 | $118.0M | 0.79% | +26,981+1.9% | Added |
| Federated Hermes, Inc. | 1,470,344 | $118.2M | 0.22% | +5,010+0.3% | Added |
| Deutsche Bank AG | 1,525,802 | $122.7M | 0.05% | +296,661+24.1% | Added |
| Beck Mack & Oliver LLC | 1,726,646 | $138.8M | 2.65% | −83,891−4.6% | Reduced |
| Envestnet Asset Management Inc | 1,739,263 | $139.8M | 0.04% | −46,000−2.6% | Reduced |
| Riverbridge Partners LLC | 1,754,018 | $141.0M | 2.27% | −112,327−6.0% | Reduced |
| CIBC Private Wealth Group, LLC | 1,836,295 | $147.6M | 0.26% | +9,292+0.5% | Added |
| Mackenzie Financial Corp | 1,863,725 | $149.8M | 0.19% | −599,629−24.3% | Reduced |
| RGM Capital, LLC | 2,122,703 | $170.7M | 6.91% | −104,800−4.7% | Reduced |
| Fayez Sarofim & Co | 2,157,133 | $173.4M | 0.42% | +11,766+0.5% | Added |
| Dimensional Fund Advisors LP | 2,168,918 | $174.4M | 0.04% | +22,322+1.0% | Added |
| Goldman Sachs Group Inc | 2,183,181 | $175.5M | 0.03% | −517,215−19.2% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2,265,030 | $182.1M | 0.44% | −215,509−8.7% | Reduced |
| DF Dent & Co Inc | 2,270,370 | $182.5M | 2.32% | −96,774−4.1% | Reduced |
| JPMorgan Chase & Co | 2,290,851 | $184.2M | 0.01% | −195,011−7.8% | Reduced |
| Legal & General Group Plc | 2,504,557 | $201.4M | 0.05% | +120,682+5.1% | Added |
| Brown Advisory Inc | 2,675,994 | $215.1M | 0.28% | −346,698−11.5% | Reduced |
| Blair William & Co | 2,871,162 | $230.8M | 0.64% | −32,356−1.1% | Reduced |
| UBS Asset Management Americas Inc | 2,981,698 | $239.7M | 0.05% | +430,612+16.9% | Added |
| Third Point LLCSuperinvestorThird Point | 3,085,000 | $248.0M | 3.26% | +1,110,000+56.2% | Added |
| Charles Schwab Investment Management Inc | 3,092,123 | $248.6M | 0.04% | +60,792+2.0% | Added |
| Viking Global Investors LPSuperinvestorViking Global Investors | 3,218,568 | $258.8M | 0.75% | +3,218,568 | New |
| Amundi | 3,198,575 | $260.4M | 0.09% | −197,818−5.8% | Reduced |
| Tiger Global Management LLCSuperinvestorTiger Global Management | 3,245,109 | $260.9M | 0.77% | 00.0% | Unchanged |
| Franklin Resources Inc | 3,439,904 | $276.6M | 0.07% | +1,419,732+70.3% | Added |
| Vulcan Value Partners, LLC | 3,716,484 | $309.1M | 5.45% | −1,116,993−23.1% | Reduced |
| Northern Trust Corp | 3,866,232 | $310.8M | 0.04% | −161,302−4.0% | Reduced |
| Capital Research Global Investors | 3,931,402 | $316.1M | 0.06% | +510,710+14.9% | Added |
| Janus Henderson Group PLC | 4,035,827 | $324.5M | 0.16% | +3,982,866+7,520.4% | Added |
| Invesco Ltd. | 4,438,464 | $356.9M | 0.06% | +132,908+3.1% | Added |
| UBS Group AG | 4,707,934 | $378.5M | 0.08% | −31,545−0.7% | Reduced |
| Macquarie Group Ltd | 4,834,611 | $388.7M | 0.48% | −1,342,269−21.7% | Reduced |
| Bank of New York Mellon Corp | 4,844,665 | $389.5M | 0.07% | −689,102−12.5% | Reduced |
| Bank of America Corp | 5,126,603 | $412.2M | 0.03% | −1,012,623−16.5% | Reduced |
| Norges Bank | 5,308,249 | $426.8M | 0.05% | +38,763+0.7% | Added |
| Mizuho Markets Americas LLC | 5,857,342 | $470.9M | 15.55% | −1,543,931−20.9% | Reduced |
| T. Rowe Price Investment Management, Inc. | 6,494,137 | $522.1M | 0.33% | +75,928+1.2% | Added |
| Massachusetts Financial Services Co | 6,585,677 | $529.5M | 0.17% | −33,795−0.5% | Reduced |
| Polen Capital Management LLC | 6,923,828 | $556.7M | 1.71% | +322,028+4.9% | Added |
| Morgan Stanley | 7,411,528 | $595.9M | 0.04% | −498,615−6.3% | Reduced |
| Baillie Gifford & Co | 8,540,369 | $686.6M | 0.51% | +104,170+1.2% | Added |
| Akre Capital Management LLCSuperinvestorAkre Capital Management | 9,309,232 | $748.5M | 7.33% | −4,3600.0% | Reduced |
| Geode Capital Management, LLC | 12,357,840 | $989.9M | 0.07% | +290,404+2.4% | Added |
| Capital International Investors | 14,819,416 | $1.19B | 0.21% | +149,579+1.0% | Added |
| State Street Corp | 17,732,968 | $1.43B | 0.05% | +158,539+0.9% | Added |
| Principal Financial Group Inc | 18,646,649 | $1.50B | 0.79% | −361,224−1.9% | Reduced |
| Bamco Inc | 19,679,935 | $1.58B | 4.29% | +647,413+3.4% | Added |
| BlackRock, Inc. | 35,039,434 | $2.82B | 0.05% | −2,418,184−6.5% | Reduced |
| Vanguard Group Inc | 68,847,483 | $5.54B | 0.09% | +420,772+0.6% | Added |
| Wealth Watch Advisors, INC | 16 | – | – | +16 | New |
| TOMS Capital Investment Management LP | 0 | $0 | 0.00% | −3,508,000−100.0% | Sold out |
| Soroban Capital Partners LP | 0 | $0 | 0.00% | −1,050,747−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −363,097−100.0% | Sold out |
| Baskin Financial Services Inc. | 0 | $0 | 0.00% | −279,646−100.0% | Sold out |
| Ruffer LLP | 0 | $0 | 0.00% | −270,412−100.0% | Sold out |
| Waterfront Capital Partners, LLC | 0 | $0 | 0.00% | −125,000−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −122,624−100.0% | Sold out |
| PEAK6 LLC | 0 | $0 | 0.00% | −101,555−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −96,784−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −90,987−100.0% | Sold out |
| Ofi Invest Asset Management | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −25,214−100.0% | Sold out |
| Procyon Private Wealth Partners, LLC | 0 | $0 | 0.00% | −21,649−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −17,850−100.0% | Sold out |
| Allstate Corp | 0 | $0 | 0.00% | −17,582−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −16,444−100.0% | Sold out |
| Legacy Advisors, LLC | 0 | $0 | 0.00% | −14,101−100.0% | Sold out |
| Botty Investors LLC | 0 | $0 | 0.00% | −13,174−100.0% | Sold out |
| Papamarkou Wellner Asset Management inc. | 0 | $0 | 0.00% | −13,145−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −13,000−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −11,807−100.0% | Sold out |
| Aspen Grove Capital, LLC | 0 | $0 | 0.00% | −10,078−100.0% | Sold out |
| United Services Automobile Association | 0 | $0 | 0.00% | −9,336−100.0% | Sold out |
| Sig Brokerage, LP | 0 | $0 | 0.00% | −8,735−100.0% | Sold out |
| Thoroughbred Financial Services, LLC | 0 | $0 | 0.00% | −6,893−100.0% | Sold out |
| Meiji Yasuda Asset Management Co Ltd. | 0 | $0 | 0.00% | −6,409−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −6,136−100.0% | Sold out |