Costar GroupCSGP
13F holders, Q2 2026 (June 30)760holders −37
107new positions
140sold out
10famous investors
$28.35avg. 13F price*
At the end of Q2 2026, 760 institutions reported holding Costar Group Inc. (CSGP) in their 13F filings, down 37 from Q1 2026. 107 opened new positions and 140 sold out. The largest holders were Vanguard Portfolio Management LLC ($1.1B), BlackRock, Inc. ($957.6M) and Vanguard Capital Management LLC ($755.7M). 10 famous investors held it, including Chuck Akre (6.5% of Akre Capital Management's portfolio), Ron Baron (0.9% of Baron Capital (BAMCO)'s portfolio) and Cliff Asness (0.1% of AQR Capital Management's portfolio).
- Company
- Costar Group Inc.
- Sector
- Finance
- CUSIP
- 22160N109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 107 | $361.6M |
| Exits | 140 | $465.9M |
All 13F filers, Q1 2026 → Q2 2026: 64,538,187 shares bought and 72,387,161 shares sold, net −7,848,974 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 760 holders
| Vanguard Portfolio Management LLC | 0.05% | Reduce -0.8% | 37,914,844 | $1.1B |
| BlackRock, Inc. | 0.01% | Add +0.0% | 33,813,969 | $957.6M |
| Vanguard Capital Management LLC | 0.02% | Reduce -2.7% | 26,683,792 | $755.7M |
| Baron Capital (BAMCO) | 0.92% | Add +32.6% | 21,626,763 | $612.5M |
| State Street Corp. | 0.02% | Reduce -1.3% | 18,410,876 | $521.4M |
| Capital International Investors | 0.10% | Add +7.3% | 16,643,016 | $471.3M |
| Baillie Gifford & Co. | 0.34% | Reduce -3.4% | 13,154,165 | $372.5M |
| Geode Capital Management, LLC | 0.02% | Reduce -2.3% | 12,166,469 | $343.3M |
| Akre Capital Management | 6.49% | Add +13.1% | 11,699,396 | $331.3M |
| Polen Capital Management LLC | 2.14% | Reduce -30.3% | 8,759,314 | $248.1M |
| AQR Capital Management | 0.08% | Add +568.8% | 8,445,474 | $239.2M |
| Jupiter Topco LLC | 0.09% | — | 7,832,860 | $221.8M |
| Invesco Ltd. | 0.02% | Reduce -57.3% | 6,808,377 | $192.8M |
| EdgePoint Investment Group Inc. | 1.27% | New | 5,950,002 | $168.5M |
| Norges Bank | 0.02% | — | 5,949,912 | $168.5M |
| Morgan Stanley | 0.01% | Add +1.4% | 5,485,870 | $155.4M |
| Meritage Group LP | 5.89% | Add +62.0% | 5,394,164 | $152.8M |
| JPMorgan Chase & Co. | 0.01% | Add +167.1% | 4,939,994 | $145.4M |
| Goldman Sachs Group Inc. | 0.02% | Reduce -44.5% | 5,129,484 | $145.3M |
| Federated Hermes, Inc. | 0.18% | Add +241.1% | 4,426,727 | $125.4M |
| Capital Research Global Investors | 0.02% | Reduce -4.1% | 4,193,733 | $118.8M |
| Principal Financial Group Inc. | 0.05% | Reduce -78.6% | 3,790,794 | $107.4M |
| Northern Trust Corp. | 0.01% | Add +0.5% | 3,448,839 | $97.7M |
| Qube Research & Technologies Ltd | 0.10% | New | 3,218,369 | $91.1M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.09% | Add +17.2% | 3,136,727 | $88.9M |
| Amundi | 0.02% | Reduce -4.4% | 3,135,933 | $88.8M |
| Van Eck Associates Corp. | 0.05% | Reduce -11.5% | 3,078,903 | $87.2M |
| Massachusetts Financial Services Co. | 0.03% | Add +212.1% | 2,983,969 | $84.5M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +3.1% | 2,962,442 | $83.9M |
| Bank of America Corp. | 0.01% | Reduce -23.4% | 2,735,102 | $77.5M |
| Spyglass Capital Management LLC | 4.13% | Add +142.5% | 2,694,697 | $76.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +4.0% | 2,521,571 | $71.4M |
| Canada Pension Plan Investment Board | 0.04% | Add +23.4% | 2,481,641 | $70.3M |
| FMR LLC | 0.00% | Reduce -12.6% | 2,474,902 | $70.1M |
| Nomura Asset Management International Inc. | 0.10% | Add +3.0% | 2,403,003 | $68.1M |
| Ensign Peak Advisors, Inc | 0.11% | Reduce -13.2% | 2,373,407 | $67.2M |
| UBS Group AG | 0.01% | Add +75.6% | 2,328,376 | $65.9M |
| Vanguard Fiduciary Trust Co. | 0.01% | Reduce -3.9% | 2,297,974 | $65.1M |
| Deutsche Bank AG | 0.02% | Add +19.2% | 2,264,379 | $64.1M |
| Bank of Montreal | 0.02% | Reduce -11.2% | 2,209,141 | $62.6M |
| Jane Street Group, LLC | 0.04% | Add +98.8% | 2,162,322 | $61.2M |
| Beck Mack & Oliver LLC | 1.15% | Reduce -28.8% | 2,084,233 | $59.0M |
| Bank of New York Mellon Corp | 0.01% | Reduce -16.5% | 2,005,395 | $56.8M |
| Erste Asset Management GmbH | 0.39% | Add +277.8% | 1,700,000 | $49.8M |
| Thompson Siegel & Walmsley LLC | 0.89% | Add +183.5% | 1,744,040 | $49.4M |
| Legal & General Group Plc | 0.01% | Reduce -44.4% | 1,682,774 | $47.7M |
| BNP Paribas Financial Markets | 0.02% | Add +105.3% | 1,578,322 | $44.7M |
| HSBC Holdings PLC | 0.02% | Add +16.6% | 1,570,774 | $44.5M |
| Fiera Capital Corp | 0.16% | Add +225.3% | 1,566,845 | $44.4M |
| Voloridge Investment Management, LLC | 0.19% | Add +16.1% | 1,543,483 | $43.7M |
| Envestnet Asset Management Inc. | 0.01% | Reduce -14.8% | 1,535,584 | $43.5M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -36.9% | 1,515,376 | $42.9M |
| Pictet Asset Management Holding SA | 0.04% | Add +7.2% | 1,470,824 | $41.7M |
| Royal Bank of Canada | 0.01% | Add +2.2% | 1,467,115 | $41.5M |
| Squarepoint Ops LLC | 0.08% | Add +84.3% | 1,442,049 | $40.8M |
| Marshall Wace, LLP | 0.03% | Add +167.0% | 1,381,204 | $39.1M |
| Nuveen, LLC | 0.01% | Reduce -31.4% | 1,325,564 | $37.5M |
| DF Dent & Co. Inc. | 0.71% | Reduce -17.8% | 1,319,009 | $37.4M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Add +3076.6% | 1,299,558 | $36.8M |
| Wells Fargo & Company | 0.01% | Reduce -10.6% | 1,253,821 | $35.5M |
| Swiss National Bank | 0.02% | Reduce -4.8% | 1,183,765 | $33.5M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.06% | Add +986.3% | 1,169,688 | $33.1M |
| Douglas Lane & Associates, LLC | 0.45% | Add +45.4% | 1,168,859 | $33.1M |
| Two Sigma Investments, LP | 0.02% | Add +264.7% | 1,104,950 | $31.3M |
| Riverbridge Partners LLC | 0.86% | Reduce -11.1% | 1,091,535 | $30.9M |
| D. E. Shaw & Co. | 0.02% | Reduce -82.3% | 1,043,332 | $29.5M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.02% | Reduce -3.5% | 1,015,380 | $28.8M |
| Focus Partners Wealth | 0.03% | Add +1.6% | 936,775 | $26.5M |
| Sumitomo Mitsui Trust Group, Inc. | 0.01% | Reduce -3.0% | 925,120 | $26.2M |
| Man Group plc | 0.05% | Add +1323.0% | 921,094 | $26.1M |
| Capital Fund Management S.A. | 0.18% | Add +1847.5% | 902,723 | $25.6M |
| Citigroup Inc. | 0.01% | Reduce -6.7% | 889,581 | $25.2M |
| Vanguard Global Advisers, LLC | 0.01% | Reduce -5.1% | 881,001 | $24.9M |
| Primecap Management Co. | 0.01% | Add +2.2% | 821,600 | $23.3M |
| Rhumbline Advisers | 0.02% | Reduce -0.3% | 790,116 | $22.4M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.01% | Add +7.7% | 772,828 | $21.9M |
| Russell Investments Group, Ltd. | 0.02% | Add +118.1% | 762,930 | $21.6M |
| Barclays PLC | 0.01% | Reduce -38.4% | 758,649 | $21.5M |
| Petrus Trust Company, LTA | 2.01% | No change | 756,200 | $21.4M |
| Millennium Management | 0.01% | Add +504.4% | 746,995 | $21.2M |
| Citadel Advisors | 0.01% | Reduce -31.8% | 741,898 | $21.0M |
| Trexquant Investment LP | 0.13% | Add +913.1% | 740,241 | $21.0M |
| American Capital Management Inc. | 0.92% | Reduce -12.1% | 725,143 | $20.5M |
| Korea Investment CORP | 0.04% | Add +279.8% | 698,417 | $19.8M |
| Peregrine Capital Management LLC | 0.64% | Reduce -0.9% | 692,753 | $19.6M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -54.8% | 686,023 | $19.4M |
| California State Teachers Retirement System | 0.02% | Add +2.0% | 680,684 | $19.3M |
| Blair William & Co. | 0.05% | Reduce -26.9% | 658,159 | $18.6M |
| Alliancebernstein L.P. | 0.01% | Add +12.5% | 458,488 | $18.5M |
| Gotham Asset Management | 0.04% | Add +42.3% | 635,988 | $18.0M |
| Tudor Investment Corporation | 0.07% | Add +250.0% | 627,490 | $17.8M |
| Mitsubishi UFJ Trust & Banking Corp | 0.04% | Add +40.9% | 596,676 | $16.9M |
| Quantinno Capital Management LP | 0.02% | Add +69.9% | 577,996 | $16.4M |
| Chicago Capital, LLC | 0.36% | Reduce -50.1% | 526,958 | $14.9M |
| United Asset Strategies, Inc. | 0.98% | New | 489,008 | $13.8M |
| New York State Common Retirement Fund | 0.02% | Add +137.5% | 487,676 | $13.8M |
| California Public Employees Retirement System | 0.01% | Reduce -10.3% | 478,042 | $13.5M |
| NZS Capital, LLC | 0.35% | Reduce -33.0% | 475,551 | $13.5M |
| ExodusPoint Capital Management, LP | 0.12% | Add +1773.8% | 458,765 | $13.0M |
| FORA Capital, LLC | 0.86% | Add +76.0% | 443,586 | $12.6M |
"% of holder's portfolio" is CSGP's weight in each manager's 13F, not the share of Costar Group Inc. the manager owns.