Costar GroupCSGP
13F holders, Q4 2025 (December 31)847holders −58
59new positions
142sold out
12famous investors
$67.24avg. 13F price*
At the end of Q4 2025, 847 institutions reported holding Costar Group Inc. (CSGP) in their 13F filings, down 58 from Q3 2025. 59 opened new positions and 142 sold out. The largest holders were Vanguard Group Inc. ($4.7B), BlackRock, Inc. ($2.3B) and Baron Capital (BAMCO) ($1.3B). 12 famous investors held it, including Chuck Akre (7.1% of Akre Capital Management's portfolio), Ron Baron (3.6% of Baron Capital (BAMCO)'s portfolio) and Dan Loeb (2.9% of Third Point's portfolio).
- Company
- Costar Group Inc.
- Sector
- Finance
- CUSIP
- 22160N109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 59 | $205.1M |
| Exits | 142 | $276.5M |
All 13F filers, Q3 2025 → Q4 2025: 44,881,906 shares bought and 45,205,251 shares sold, net −323,345 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 847 holders
| Vanguard Group Inc. | 0.07% | Add +0.1% | 70,108,999 | $4.7B |
| BlackRock, Inc. | 0.04% | Reduce -6.0% | 33,970,626 | $2.3B |
| Baron Capital (BAMCO) | 3.55% | Add +1.3% | 19,498,099 | $1.3B |
| State Street Corp. | 0.04% | Add +1.9% | 18,632,352 | $1.3B |
| Principal Financial Group Inc. | 0.60% | Reduce -5.7% | 17,566,074 | $1.2B |
| Invesco Ltd. | 0.09% | Add +228.6% | 14,908,741 | $1.0B |
| Baillie Gifford & Co. | 0.72% | Add +56.9% | 12,933,185 | $869.6M |
| Geode Capital Management, LLC | 0.05% | Reduce -3.3% | 12,182,167 | $816.2M |
| Capital International Investors | 0.11% | Add +59.7% | 10,842,010 | $729.0M |
| Akre Capital Management | 7.09% | Add +3.4% | 9,617,805 | $646.7M |
| Janus Henderson Group PLC | 0.23% | Add +20.2% | 7,473,380 | $502.5M |
| Norges Bank | 0.05% | — | 7,090,495 | $476.8M |
| Capital Research Global Investors | 0.07% | Add +11.5% | 5,566,962 | $374.3M |
| Morgan Stanley | 0.02% | Reduce -38.1% | 5,291,136 | $355.8M |
| Polen Capital Management LLC | 1.40% | Reduce -23.4% | 4,890,936 | $328.9M |
| Vulcan Value Partners, LLC | 5.44% | Add +17.1% | 4,485,021 | $301.5M |
| Mizuho Markets Americas LLC | 6.38% | Reduce -13.8% | 4,416,116 | $296.9M |
| Amundi | 0.08% | Add +31.2% | 4,114,516 | $276.7M |
| Bank of New York Mellon Corp | 0.05% | Reduce -5.7% | 4,113,002 | $276.6M |
| Nomura Asset Management International Inc. | 0.40% | — | 3,909,161 | $262.9M |
| Goldman Sachs Group Inc. | 0.04% | Add +70.9% | 3,751,528 | $252.3M |
| Nuveen, LLC | 0.06% | Add +1.6% | 3,560,896 | $239.4M |
| Bank of America Corp. | 0.02% | Reduce -5.2% | 3,504,812 | $235.7M |
| Northern Trust Corp. | 0.03% | Reduce -7.6% | 3,466,062 | $233.1M |
| T. Rowe Price Investment Management, Inc. | 0.15% | Reduce -1.3% | 3,464,794 | $233.0M |
| Third Point | 2.94% | Add +4.9% | 3,165,000 | $212.8M |
| Massachusetts Financial Services Co. | 0.07% | Reduce -57.3% | 3,159,925 | $212.5M |
| Legal & General Group Plc | 0.04% | Add +6.0% | 2,861,300 | $192.4M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.22% | Add +15.4% | 2,813,363 | $189.2M |
| Charles Schwab Investment Management Inc. | 0.03% | Add +0.2% | 2,663,099 | $179.1M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.03% | Reduce -1.1% | 2,432,817 | $163.6M |
| Barclays PLC | 0.06% | Add +83.4% | 2,321,700 | $156.1M |
| Dimensional Fund Advisors LP | 0.03% | Add +3.7% | 2,319,754 | $156.0M |
| Tiger Global Management | 0.51% | Reduce -30.4% | 2,259,109 | $151.9M |
| Fayez Sarofim & Co | 0.36% | Add +3.1% | 2,241,437 | $150.7M |
| Beck Mack & Oliver LLC | 2.72% | Add +29.1% | 2,224,889 | $149.6M |
| UBS Group AG | 0.03% | Reduce -54.2% | 2,111,290 | $142.0M |
| Blair William & Co. | 0.37% | Reduce -35.3% | 2,023,523 | $136.1M |
| DF Dent & Co. Inc. | 1.94% | Reduce -7.8% | 2,007,630 | $135.0M |
| RGM Capital, LLC | 6.51% | Reduce -4.7% | 1,995,460 | $134.2M |
| Brown Advisory Inc. | 0.18% | Reduce -22.6% | 1,906,345 | $128.2M |
| Jupiter Asset Management Ltd. | 1.00% | Add +386.3% | 1,863,704 | $125.3M |
| Deutsche Bank AG | 0.04% | Add +38.4% | 1,775,803 | $119.4M |
| Mackenzie Financial Corp. | 0.13% | Add +0.9% | 1,660,715 | $112.5M |
| Tremblant Capital Group | 2.81% | Add +624.1% | 1,635,964 | $110.0M |
| Spyglass Capital Management LLC | 5.31% | Add +57.4% | 1,578,449 | $106.1M |
| Citigroup Inc. | 0.07% | Add +123.3% | 1,502,021 | $101.0M |
| Riverbridge Partners LLC | 1.83% | Reduce -12.4% | 1,452,546 | $97.7M |
| Viking Global Investors | 0.26% | Reduce -22.0% | 1,442,582 | $97.0M |
| CIBC Private Wealth Group LLC | 0.15% | Reduce -25.3% | 1,361,651 | $91.6M |
| Envestnet Asset Management Inc. | 0.03% | Reduce -21.8% | 1,335,852 | $89.8M |
| Federated Hermes, Inc. | 0.15% | Reduce -9.6% | 1,322,999 | $89.0M |
| Royal Bank of Canada | 0.02% | Add +2.4% | 1,307,942 | $87.9M |
| Nomura Holdings Inc. | 0.24% | Add +10869.9% | 1,234,117 | $83.0M |
| FMR LLC | 0.00% | Reduce -23.9% | 1,202,153 | $80.8M |
| T. Rowe Price Associates Inc. | 0.01% | Reduce -5.2% | 1,198,832 | $80.6M |
| Capitolis Liquid Global Markets LLC | 0.47% | New | 1,184,000 | $79.6M |
| Franklin Resources Inc. | 0.02% | Reduce -68.9% | 1,162,422 | $78.2M |
| Swiss National Bank | 0.05% | Reduce -4.5% | 1,160,965 | $78.1M |
| Stephens Investment Management Group LLC | 0.98% | Add +45.5% | 1,114,972 | $75.0M |
| Pictet Asset Management Holding SA | 0.07% | Add +24.4% | 1,055,508 | $71.0M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.05% | Add +4.9% | 1,057,184 | $69.4M |
| Sumitomo Mitsui Trust Group, Inc. | 0.04% | Reduce -8.8% | 999,684 | $67.2M |
| BNP Paribas Financial Markets | 0.04% | Add +48.5% | 997,813 | $67.1M |
| HSBC Holdings PLC | 0.04% | Add +37.6% | 987,270 | $66.4M |
| ShawSpring Partners LLC | 12.12% | Add +6.9% | 957,557 | $64.4M |
| Harding Loevner LP | 0.54% | Reduce -15.1% | 920,272 | $61.9M |
| D. E. Shaw & Co. | 0.05% | No change | 905,488 | $60.9M |
| Kensico Capital Management Corp. | 1.03% | Reduce -29.7% | 901,600 | $60.6M |
| Wells Fargo & Company | 0.01% | Reduce -22.5% | 880,972 | $59.2M |
| Focus Partners Wealth | 0.06% | Reduce -15.7% | 841,115 | $56.6M |
| Chicago Capital, LLC | 1.37% | Reduce -13.8% | 827,123 | $55.6M |
| American Capital Management Inc. | 2.45% | Add +4.0% | 825,340 | $55.5M |
| SG Capital Management LLC | 5.97% | Add +756.3% | 811,181 | $54.5M |
| TimesSquare Capital Management, LLC | 0.82% | Add +0.3% | 809,321 | $54.4M |
| Squarepoint Ops LLC | 0.11% | Add +6940.4% | 795,563 | $53.5M |
| JPMorgan Chase & Co. | 0.00% | Reduce -59.7% | 772,040 | $51.9M |
| Rhumbline Advisers | 0.04% | Reduce -2.7% | 768,835 | $51.7M |
| ProShare Advisors LLC | 0.09% | Add +37.7% | 753,672 | $50.7M |
| Peregrine Capital Management LLC | 1.54% | Reduce -1.6% | 748,873 | $50.4M |
| Canada Pension Plan Investment Board | 0.03% | Add +16.9% | 741,403 | $49.9M |
| California Public Employees Retirement System | 0.03% | Add +0.2% | 731,971 | $49.2M |
| Weitz Investment Management, Inc. | 2.87% | No change | 719,850 | $48.4M |
| First Trust Advisors LP | 0.03% | Add +4.2% | 703,358 | $47.3M |
| Douglas Lane & Associates, LLC | 0.63% | Add +4.3% | 683,061 | $45.9M |
| California State Teachers Retirement System | 0.05% | Reduce -1.9% | 682,638 | $45.9M |
| National Pension Service | 0.03% | Add +23.2% | 682,119 | $45.9M |
| FIL Ltd | 0.03% | Add +198.7% | 639,883 | $43.0M |
| Kayne Anderson Rudnick Investment Management LLC | 0.11% | Reduce -14.3% | 635,720 | $42.7M |
| Petrus Trust Company, LTA | 4.28% | Add +87.0% | 629,198 | $42.3M |
| Sei Investments Co. | 0.04% | Reduce -7.4% | 621,779 | $41.8M |
| Junto Capital Management LP | 0.93% | New | 615,998 | $41.4M |
| Ameriprise Financial Inc. | 0.01% | Reduce -49.7% | 615,038 | $41.4M |
| Citadel Advisors | 0.03% | Reduce -65.0% | 604,543 | $40.6M |
| Millennium Management | 0.03% | Add +47.4% | 601,975 | $40.5M |
| Caisse de depot et placement du Quebec | 0.07% | Add +1462.4% | 587,098 | $39.5M |
| Ensign Peak Advisors, Inc | 0.07% | Reduce -17.1% | 578,356 | $38.9M |
| Russell Investments Group, Ltd. | 0.04% | Add +15.2% | 547,600 | $36.8M |
| Raymond James Financial Inc. | 0.01% | Reduce -33.8% | 509,367 | $34.2M |
| Mitsubishi UFJ Trust & Banking Corp | 0.08% | Add +2.5% | 477,836 | $32.1M |
"% of holder's portfolio" is CSGP's weight in each manager's 13F, not the share of Costar Group Inc. the manager owns.