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 2025
Institutional positions in Costar Group, Inc. as of Dec 31, 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
- 847
- −40 vs. Q3 2025
- Shares held
- 422.7M
- +11.7M (+2.8%) vs. Q3 2025
- Total value
- $28.4B
- −$6.23B (−18.0%) vs. Q3 2025
- New holders
- 103
- 273 more added
- Sold out
- 143
- 388 more reduced
18 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Icon Wealth Advisors, LLC | 17,499 | $1.18M | 0.08% | −6,324−26.5% | Reduced |
| MUFG Securities EMEA plc | 17,388 | $1.17M | 0.01% | +9,279+114.4% | Added |
| Dai-Ichi Life Insurance Company, Ltd | 17,377 | $1.17M | 0.03% | 00.0% | Unchanged |
| Main Management ETF Advisors, LLC | 17,226 | $1.16M | 0.04% | +176+1.0% | Added |
| Callan Family Office, LLC | 17,106 | $1.15M | 0.02% | +4,585+36.6% | Added |
| Omers Administration Corp | 17,087 | $1.15M | 0.01% | 00.0% | Unchanged |
| Skylands Capital, LLC | 17,050 | $1.15M | 0.16% | +17,050 | New |
| Lombard Odier Asset Management (Switzerland) SA | 16,820 | $1.13M | 0.05% | −738−4.2% | Reduced |
| Elo Mutual Pension Insurance Co | 16,684 | $1.12M | 0.02% | −42,578−71.8% | Reduced |
| E. Ohman J:or Asset Management AB | 16,620 | $1.12M | 0.03% | +4,320+35.1% | Added |
| Mattern Capital Management, LLC | 16,463 | $1.11M | 0.13% | +3,266+24.7% | Added |
| Chicago Partners Investment Group LLC | 16,841 | $1.10M | 0.03% | +2,454+17.1% | Added |
| Keybank National Association | 16,391 | $1.10M | 0.00% | −2,887−15.0% | Reduced |
| Lincoln Capital LLC | 16,347 | $1.10M | 0.20% | −4,896−23.0% | Reduced |
| Tokio Marine Asset Management Co Ltd | 16,211 | $1.09M | 0.04% | +784+5.1% | Added |
| Verition Fund Management LLC | 16,042 | $1.08M | 0.01% | −13,891−46.4% | Reduced |
| RMR Wealth Builders | 16,036 | $1.08M | 0.09% | 00.0% | Unchanged |
| Benjamin Edwards Inc | 16,003 | $1.08M | 0.01% | +625+4.1% | Added |
| Edgestream Partners, L.P. | 15,805 | $1.06M | 0.03% | +15,805 | New |
| Institute for Wealth Management, LLC. | 15,656 | $1.05M | 0.11% | −611−3.8% | Reduced |
| Redmond Asset Management, LLC | 15,309 | $1.03M | 0.26% | −433−2.8% | Reduced |
| Federation des caisses Desjardins du Quebec | 14,942 | $1.00M | 0.00% | −13,663−47.8% | Reduced |
| Guidance Capital, Inc | 15,027 | $995.7K | 0.24% | +1,106+7.9% | Added |
| Ieq Capital, LLC | 14,570 | $979.7K | 0.00% | −6,431−30.6% | Reduced |
| Summit Trail Advisors, LLC | 14,455 | $972.0K | 0.02% | +1,581+12.3% | Added |
| Kestra Advisory Services, LLC | 14,355 | $965.2K | 0.00% | −4,588−24.2% | Reduced |
| North Dakota State Investment Board | 14,316 | $962.6K | 0.04% | +14,316 | New |
| Canada Post Corp Registered Pension Plan | 14,170 | $952.8K | 0.04% | +2,250+18.9% | Added |
| Vident Advisory, LLC | 14,104 | $948.4K | 0.01% | +815+6.1% | Added |
| Sumitomo Life Insurance Co | 14,090 | $947.4K | 0.03% | +170+1.2% | Added |
| Horizon Investments, LLC | 14,079 | $946.7K | 0.01% | +247+1.8% | Added |
| Teacher Retirement System of Texas | 14,000 | $941.4K | 0.00% | −41,256−74.7% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 14,005 | $941.3K | 0.01% | +588+4.4% | Added |
| Commonwealth Equity Services, LLC | 13,723 | $922.8K | 0.00% | −7,638−35.8% | Reduced |
| Davis Capital Management | 13,694 | $920.8K | 0.63% | −583−4.1% | Reduced |
| Banque Pictet & Cie SA | 13,550 | $911.1K | 0.01% | −16,449−54.8% | Reduced |
| Voya Financial Advisors, Inc. | 13,473 | $910.8K | 0.09% | −919−6.4% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 13,542 | $910.6K | 0.01% | +39+0.3% | Added |
| Metis Global Partners, LLC | 13,457 | $904.8K | 0.02% | −847−5.9% | Reduced |
| Regatta Capital Group, LLC | 13,381 | $899.7K | 0.14% | −45−0.3% | Reduced |
| Entropy Technologies, LP | 13,121 | $882.3K | 0.05% | +13,121 | New |
| Advisor Group Holdings, Inc. | 13,109 | $881.4K | 0.00% | −29,984−69.6% | Reduced |
| NewEdge Wealth, LLC | 13,009 | $874.7K | 0.01% | −1,497−10.3% | Reduced |
| Chicago Trust Co NA | 12,999 | $874.1K | 0.14% | 00.0% | Unchanged |
| Vestcor Inc | 12,780 | $859.0K | 0.02% | +900+7.6% | Added |
| Howard Capital Management Inc. | 12,762 | $858.1K | 0.01% | +290+2.3% | Added |
| Westerkirk Capital Inc. | 12,600 | $847.2K | 0.08% | +900+7.7% | Added |
| Conestoga Capital Advisors, LLC | 12,277 | $825.5K | 0.01% | −3,263−21.0% | Reduced |
| Jefferies Financial Group Inc. | 12,226 | $822.1K | 0.01% | −55,034−81.8% | Reduced |
| Azzad Asset Management Inc | 12,120 | $814.9K | 0.08% | −86,365−87.7% | Reduced |
| Miracle Mile Advisors, LLC | 12,110 | $814.3K | 0.01% | −1,514−11.1% | Reduced |
| Fideuram - Intesa Sanpaolo Private Banking S.P.A. | 11,998 | $806.7K | 0.03% | +11,998 | New |
| Turtle Creek Wealth Advisors, LLC | 11,995 | $806.5K | 0.06% | +2,123+21.5% | Added |
| China Universal Asset Management Co., Ltd. | 11,994 | $806.5K | 0.06% | +810+7.2% | Added |
| Walleye Trading LLC | 11,991 | $806.3K | 0.01% | +3,203+36.4% | Added |
| Volterra Technologies LP | 11,925 | $801.8K | 0.82% | +11,925 | New |
| Davenport & Co LLC | 11,701 | $786.7K | 0.00% | −46,687−80.0% | Reduced |
| Colony Capital, Inc. | 11,700 | $786.7K | 0.06% | +4,400+60.3% | Added |
| Venturi Wealth Management, LLC | 11,690 | $786.0K | 0.03% | +1,381+13.4% | Added |
| Avanza Fonder AB | 11,583 | $778.8K | 0.02% | +11,583 | New |
| Securian Asset Management, Inc | 11,524 | $774.9K | 0.03% | −8,874−43.5% | Reduced |
| Assenagon Asset Management S.A. | 11,461 | $770.6K | 0.00% | −1,536−11.8% | Reduced |
| Postrock Partners LLC | 11,440 | $769.2K | 0.33% | 00.0% | Unchanged |
| Waterway Wealth Management, LLC | 11,424 | $768.1K | 0.17% | −5,225−31.4% | Reduced |
| MUFG Securities Americas Inc. | 11,417 | $767.7K | 0.05% | −7−0.1% | Reduced |
| Narwhal Capital Management | 11,383 | $765.4K | 0.06% | −21,730−65.6% | Reduced |
| TradeLink Capital LLC | 11,356 | $764.0K | 6.11% | +11,356 | New |
| Odyssean, LLC | 11,342 | $762.6K | 0.55% | +11,342 | New |
| Bleakley Financial Group, LLC | 11,242 | $755.9K | 0.01% | −654−5.5% | Reduced |
| Kentucky Retirement Systems Insurance Trust Fund | 10,989 | $738.9K | 0.05% | 00.0% | Unchanged |
| Wahed Invest LLC | 10,975 | $738.0K | 0.10% | +10,975 | New |
| Personal Cfo Solutions, LLC | 10,971 | $737.7K | 0.12% | −839−7.1% | Reduced |
| Capital International Inc | 10,849 | $729.5K | 0.01% | +890+8.9% | Added |
| AXA S.A. | 10,812 | $727.0K | 0.34% | +10,812 | New |
| Gilbert & Cook, Inc. | 10,423 | $700.8K | 0.09% | −187−1.8% | Reduced |
| Norden Group LLC | 10,407 | $699.8K | 0.07% | −6,487−38.4% | Reduced |
| GAMMA Investing LLC | 10,318 | $693.8K | 0.03% | −608−5.6% | Reduced |
| Accretive Wealth Partners, LLC | 9,958 | $669.6K | 0.20% | −1,793−15.3% | Reduced |
| RSM US Wealth Management LLC | 9,818 | $666.2K | 0.01% | −3,794−27.9% | Reduced |
| Groupama Asset Managment | 9,891 | $665.1K | 0.01% | −1,025−9.4% | Reduced |
| Quest Partners LLC | 9,729 | $654.2K | 0.04% | +8,660+810.1% | Added |
| Sowell Financial Services LLC | 9,715 | $653.2K | 0.02% | −808−7.7% | Reduced |
| Inceptionr LLC | 9,598 | $645.4K | 0.18% | +9,598 | New |
| Vestmark Advisory Solutions, Inc. | 9,589 | $644.8K | 0.01% | −3,655−27.6% | Reduced |
| Empowered Funds, LLC | 9,541 | $641.5K | 0.01% | −4,251−30.8% | Reduced |
| Hills Bank & Trust Co | 9,504 | $639.0K | 0.04% | 00.0% | Unchanged |
| Cresset Asset Management, LLC | 9,287 | $624.5K | 0.00% | +1,818+24.3% | Added |
| SRS Capital Advisors, Inc. | 9,199 | $618.5K | 0.02% | −6,451−41.2% | Reduced |
| Sapient Capital LLC | 9,029 | $612.7K | 0.01% | +255+2.9% | Added |
| Laird Norton Trust Company, LLC | 9,109 | $612.5K | 0.01% | +9,109 | New |
| Bridgewater Associates, LP | 9,020 | $606.5K | 0.00% | +9,020 | New |
| Connable Office Inc | 9,000 | $605.2K | 0.06% | 00.0% | Unchanged |
| Warren Averett Asset Management, LLC | 8,948 | $601.7K | 0.00% | +8,948 | New |
| Fortress Wealth Group, LLC | 9,699 | $596.5K | 0.23% | +1,225+14.5% | Added |
| Gibbs Wealth Management | 10,195 | $596.3K | 0.14% | −1,582−13.4% | Reduced |
| Plato Investment Management Ltd | 8,565 | $578.7K | 0.04% | +4,096+91.7% | Added |
| Ritholtz Wealth Management | 8,369 | $562.7K | 0.01% | −1,262−13.1% | Reduced |
| Moody National Bank Trust Division | 8,334 | $560.4K | 0.05% | −13,413−61.7% | Reduced |
| Atomi Financial Group, Inc. | 8,314 | $559.0K | 0.02% | −2,569−23.6% | Reduced |
| Empirical Finance, LLC | 8,225 | $553.0K | 0.03% | −305−3.6% | Reduced |