Costar Group, Inc.
CSGP- Exchange
- Nasdaq
- Industry
- Services-Business Services, NEC
- SEC CIK
- 0001057352
No open-market purchases or sales by Costar Group, Inc. insiders were filed in the last 90 days; 764 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
- 876
- +26 vs. Q1 2025
- Shares held
- 424.8M
- −3.50M (−0.8%) vs. Q1 2025
- Total value
- $34.2B
- +$258.5M (+0.8%) vs. Q1 2025
- New holders
- 101
- 356 more added
- Sold out
- 75
- 317 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 | 764 | $11.7B |
| Q1 2026 | 801 | $16.8B |
| Q4 2025 | 851 | $28.4B |
| Q3 2025 | 909 | $34.9B |
| Q2 2025 | 876 | $34.2B |
| Q1 2025 | 861 | $33.9B |
| Q4 2024 | 808 | $28.9B |
| Q3 2024 | 775 | $30.0B |
| Q2 2024 | 768 | $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 |
|---|---|---|---|---|---|
| Vanguard Group Inc | 68,847,483 | $5.54B | 0.09% | +420,772+0.6% | Added |
| BlackRock, Inc. | 35,039,434 | $2.82B | 0.05% | −2,418,184−6.5% | Reduced |
| Bamco Inc | 19,679,935 | $1.58B | 4.29% | +647,413+3.4% | Added |
| Principal Financial Group Inc | 18,646,649 | $1.50B | 0.79% | −361,224−1.9% | Reduced |
| State Street Corp | 17,732,968 | $1.43B | 0.05% | +158,539+0.9% | Added |
| Capital International Investors | 14,819,416 | $1.19B | 0.21% | +149,579+1.0% | Added |
| Geode Capital Management, LLC | 12,357,840 | $989.9M | 0.07% | +290,404+2.4% | Added |
| Akre Capital Management LLCSuperinvestorAkre Capital Management | 9,309,232 | $748.5M | 7.33% | −4,3600.0% | Reduced |
| Baillie Gifford & Co | 8,540,369 | $686.6M | 0.51% | +104,170+1.2% | Added |
| Morgan Stanley | 7,411,528 | $595.9M | 0.04% | −498,615−6.3% | Reduced |
| Polen Capital Management LLC | 6,923,828 | $556.7M | 1.71% | +322,028+4.9% | Added |
| Massachusetts Financial Services Co | 6,585,677 | $529.5M | 0.17% | −33,795−0.5% | Reduced |
| T. Rowe Price Investment Management, Inc. | 6,494,137 | $522.1M | 0.33% | +75,928+1.2% | Added |
| Mizuho Markets Americas LLC | 5,857,342 | $470.9M | 15.55% | −1,543,931−20.9% | Reduced |
| Norges Bank | 5,308,249 | $426.8M | 0.05% | +38,763+0.7% | Added |
| Bank of America Corp | 5,126,603 | $412.2M | 0.03% | −1,012,623−16.5% | Reduced |
| Bank of New York Mellon Corp | 4,844,665 | $389.5M | 0.07% | −689,102−12.5% | Reduced |
| Macquarie Group Ltd | 4,834,611 | $388.7M | 0.48% | −1,342,269−21.7% | Reduced |
| UBS Group AG | 4,707,934 | $378.5M | 0.08% | −31,545−0.7% | Reduced |
| Invesco Ltd. | 4,438,464 | $356.9M | 0.06% | +132,908+3.1% | Added |
| Janus Henderson Group PLC | 4,035,827 | $324.5M | 0.16% | +3,982,866+7,520.4% | Added |
| Capital Research Global Investors | 3,931,402 | $316.1M | 0.06% | +510,710+14.9% | Added |
| Northern Trust Corp | 3,866,232 | $310.8M | 0.04% | −161,302−4.0% | Reduced |
| Vulcan Value Partners, LLC | 3,716,484 | $309.1M | 5.45% | −1,116,993−23.1% | Reduced |
| Franklin Resources Inc | 3,439,904 | $276.6M | 0.07% | +1,419,732+70.3% | Added |
| Tiger Global Management LLCSuperinvestorTiger Global Management | 3,245,109 | $260.9M | 0.77% | 00.0% | Unchanged |
| Amundi | 3,198,575 | $260.4M | 0.09% | −197,818−5.8% | Reduced |
| Viking Global Investors LPSuperinvestorViking Global Investors | 3,218,568 | $258.8M | 0.75% | +3,218,568 | New |
| Charles Schwab Investment Management Inc | 3,092,123 | $248.6M | 0.04% | +60,792+2.0% | Added |
| Third Point LLCSuperinvestorThird Point | 3,085,000 | $248.0M | 3.26% | +1,110,000+56.2% | Added |
| UBS Asset Management Americas Inc | 2,981,698 | $239.7M | 0.05% | +430,612+16.9% | Added |
| Blair William & Co | 2,871,162 | $230.8M | 0.64% | −32,356−1.1% | Reduced |
| Brown Advisory Inc | 2,675,994 | $215.1M | 0.28% | −346,698−11.5% | Reduced |
| Legal & General Group Plc | 2,504,557 | $201.4M | 0.05% | +120,682+5.1% | Added |
| JPMorgan Chase & Co | 2,290,851 | $184.2M | 0.01% | −195,011−7.8% | Reduced |
| DF Dent & Co Inc | 2,270,370 | $182.5M | 2.32% | −96,774−4.1% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2,265,030 | $182.1M | 0.44% | −215,509−8.7% | Reduced |
| Goldman Sachs Group Inc | 2,183,181 | $175.5M | 0.03% | −517,215−19.2% | Reduced |
| Dimensional Fund Advisors LP | 2,168,918 | $174.4M | 0.04% | +22,322+1.0% | Added |
| Fayez Sarofim & Co | 2,157,133 | $173.4M | 0.42% | +11,766+0.5% | Added |
| RGM Capital, LLC | 2,122,703 | $170.7M | 6.91% | −104,800−4.7% | Reduced |
| Mackenzie Financial Corp | 1,863,725 | $149.8M | 0.19% | −599,629−24.3% | Reduced |
| CIBC Private Wealth Group, LLC | 1,836,295 | $147.6M | 0.26% | +9,292+0.5% | Added |
| Riverbridge Partners LLC | 1,754,018 | $141.0M | 2.27% | −112,327−6.0% | Reduced |
| Envestnet Asset Management Inc | 1,739,263 | $139.8M | 0.04% | −46,000−2.6% | Reduced |
| Beck Mack & Oliver LLC | 1,726,646 | $138.8M | 2.65% | −83,891−4.6% | Reduced |
| Deutsche Bank AG | 1,525,802 | $122.7M | 0.05% | +296,661+24.1% | Added |
| Federated Hermes, Inc. | 1,470,344 | $118.2M | 0.22% | +5,010+0.3% | Added |
| Harding Loevner LP | 1,467,080 | $118.0M | 0.79% | +26,981+1.9% | Added |
| ShawSpring Partners LLC | 1,356,060 | $109.0M | 13.76% | +207,758+18.1% | Added |
| Wells Fargo & Company | 1,331,162 | $107.0M | 0.02% | +98,411+8.0% | Added |
| FMR LLC | 1,295,877 | $104.2M | 0.01% | −342,770−20.9% | Reduced |
| Kensico Capital Management Corp | 1,282,400 | $103.1M | 1.98% | −48,900−3.7% | Reduced |
| BNP Paribas Arbitrage, SA | 1,279,270 | $102.9M | 0.08% | −381,613−23.0% | Reduced |
| Swiss National Bank | 1,276,765 | $102.7M | 0.06% | +88,600+7.5% | Added |
| Royal Bank of Canada | 1,274,804 | $102.5M | 0.02% | −108,379−7.8% | Reduced |
| Voya Investment Management LLC | 1,231,771 | $99.0M | 0.10% | +13,217+1.1% | Added |
| Bares Capital Management, Inc. | 1,214,652 | $97.7M | 9.48% | +81,650+7.2% | Added |
| Price T Rowe Associates Inc | 1,195,332 | $96.1M | 0.01% | +152,502+14.6% | Added |
| Barclays PLC | 1,171,306 | $94.2M | 0.04% | +127,638+12.2% | Added |
| Ion Asset Management Ltd. | 1,169,833 | $94.1M | 5.68% | +1,028,933+730.3% | Added |
| Nuveen, LLC | 1,081,903 | $87.0M | 0.02% | +37,397+3.6% | Added |
| Ameriprise Financial Inc | 1,077,745 | $86.7M | 0.02% | −1,445,936−57.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,021,300 | $82.1M | 0.05% | +24,290+2.4% | Added |
| Colony Group, LLC | 990,537 | $79.6M | 0.17% | +6,744+0.7% | Added |
| Chicago Capital, LLC | 964,290 | $77.5M | 1.91% | +20,335+2.2% | Added |
| SG Capital Management LLC | 940,155 | $75.6M | 6.43% | +940,155 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 926,020 | $74.5M | 0.06% | +58,463+6.7% | Added |
| Baird Financial Group, Inc. | 920,768 | $74.0M | 0.13% | −41,500−4.3% | Reduced |
| D. E. Shaw & Co., Inc. | 916,388 | $73.7M | 0.07% | −3040.0% | Reduced |
| Pictet Asset Management Holding SA | 915,075 | $73.6M | 0.07% | −14,030−1.5% | Reduced |
| Citigroup Inc | 832,687 | $66.9M | 0.05% | +133,262+19.1% | Added |
| TimesSquare Capital Management, LLC | 810,196 | $65.1M | 0.94% | +57,309+7.6% | Added |
| Spyglass Capital Management LLC | 803,282 | $64.6M | 3.81% | +307,424+62.0% | Added |
| American Capital Management Inc | 795,961 | $64.0M | 2.65% | −142,181−15.2% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 782,686 | $62.9M | 0.15% | −49,853−6.0% | Reduced |
| Rhumbline Advisers | 782,168 | $62.9M | 0.05% | +13,802+1.8% | Added |
| Stephens Investment Management Group LLC | 773,281 | $62.2M | 0.82% | +34,444+4.7% | Added |
| Ensign Peak Advisors, Inc | 771,378 | $62.0M | 0.11% | −63,831−7.6% | Reduced |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 765,600 | $61.6M | 3.31% | −146,000−16.0% | Reduced |
| Ci Investments Inc. | 708,453 | $57.0M | 0.21% | −18,664−2.6% | Reduced |
| HSBC Holdings PLC | 708,388 | $56.9M | 0.04% | −51,903−6.8% | Reduced |
| Peregrine Capital Management LLC | 700,543 | $56.3M | 1.70% | −38,854−5.3% | Reduced |
| California State Teachers Retirement System | 698,309 | $56.1M | 0.06% | +1,860+0.3% | Added |
| California Public Employees Retirement System | 686,918 | $55.2M | 0.04% | +56,269+8.9% | Added |
| TD Asset Management Inc | 682,217 | $54.9M | 0.05% | −32,364−4.5% | Reduced |
| Raymond James Financial Inc | 661,877 | $53.2M | 0.02% | −25,034−3.6% | Reduced |
| ProShare Advisors LLC | 661,433 | $53.2M | 0.11% | +43,662+7.1% | Added |
| Parnassus Investments | 655,398 | $52.7M | 0.12% | +655,398 | New |
| SEI Investments Co | 654,647 | $52.6M | 0.06% | −26,238−3.9% | Reduced |
| First Trust Advisors LP | 616,538 | $49.6M | 0.04% | +339,464+122.5% | Added |
| Candlestick Capital Management LP | 596,098 | $47.9M | 1.59% | −582,549−49.4% | Reduced |
| Douglas Lane & Associates, LLC | 584,311 | $47.0M | 0.68% | +27,560+5.0% | Added |
| Arrowstreet Capital, Limited Partnership | 558,946 | $44.9M | 0.03% | +66,667+13.5% | Added |
| Telemark Asset Management, LLC | 550,000 | $44.2M | 4.69% | +50,000+10.0% | Added |
| National Pension Service | 541,601 | $43.5M | 0.04% | +4,539+0.8% | Added |
| Natixis Advisors, L.P. | 537,666 | $43.2M | 0.07% | −56,936−9.6% | Reduced |
| Canada Pension Plan Investment Board | 534,498 | $43.0M | 0.04% | +67,363+14.4% | Added |
| Frontier Capital Management Co LLC | 527,478 | $42.4M | 0.39% | +88,053+20.0% | Added |
| ThornTree Capital Partners LP | 512,507 | $41.2M | 6.86% | +119,309+30.3% | Added |