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, Q3 2025
Institutional positions in Costar Group, Inc. as of Sep 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
- 905
- +46 vs. Q2 2025
- Shares held
- 413.6M
- −5.67M (−1.4%) vs. Q2 2025
- Total value
- $34.9B
- +$1.15B (+3.4%) vs. Q2 2025
- New holders
- 107
- 364 more added
- Sold out
- 61
- 314 more reduced
14 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Venturi Wealth Management, LLC | 10,309 | $869.8K | 0.04% | +717+7.5% | Added |
| Parallel Advisors, LLC | 10,164 | $857.6K | 0.02% | +3,708+57.4% | Added |
| Capital International Inc | 9,959 | $840.2K | 0.01% | −11,414−53.4% | Reduced |
| Magnetar Financial LLC | 9,878 | $833.4K | 0.01% | +9,878 | New |
| Turtle Creek Wealth Advisors, LLC | 9,872 | $832.9K | 0.07% | +119+1.2% | Added |
| Dynamic Technology Lab Private Ltd | 9,719 | $820.0K | 0.14% | +6,411+193.8% | Added |
| Kovitz Investment Group Partners, LLC | 9,650 | $814.2K | 0.00% | +1,986+25.9% | Added |
| Ritholtz Wealth Management | 9,631 | $812.6K | 0.02% | +9,631 | New |
| Integrity Alliance, LLC. | 9,566 | $807.1K | 0.04% | +9,566 | New |
| Hills Bank & Trust Co | 9,504 | $801.9K | 0.05% | 00.0% | Unchanged |
| Stratos Wealth Partners, LTD. | 9,318 | $786.2K | 0.01% | +9,318 | New |
| Buttonwood Financial Advisors Inc. | 9,240 | $779.6K | 0.27% | +3,878+72.3% | Added |
| David Loasby | 9,644 | $777.3K | 0.06% | +568+6.3% | Added |
| Americana Partners, LLC | 9,170 | $773.7K | 0.02% | +1,285+16.3% | Added |
| Smartleaf Asset Management LLC | 9,126 | $768.7K | 0.05% | +2,333+34.3% | Added |
| Connable Office Inc | 9,000 | $759.3K | 0.07% | 00.0% | Unchanged |
| Stansberry Asset Management, LLC | 8,866 | $748.0K | 0.08% | −243−2.7% | Reduced |
| Walleye Trading LLC | 8,788 | $741.4K | 0.01% | +8,788 | New |
| Sapient Capital LLC | 8,774 | $739.0K | 0.01% | −2,977−25.3% | Reduced |
| CAPROCK Group, Inc. | 8,181 | $732.1K | 0.02% | +8,181 | New |
| Diversified Trust Co | 8,576 | $723.6K | 0.01% | +5,568+185.1% | Added |
| Patten & Patten Inc | 8,558 | $722.0K | 0.04% | −30.0% | Reduced |
| Empirical Finance, LLC | 8,530 | $719.7K | 0.03% | +154+1.8% | Added |
| Everhart Financial Group, Inc. | 8,455 | $713.3K | 0.07% | +1,305+18.3% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 17,558 | $709.8K | 0.03% | +6,032+52.3% | Added |
| Snowden Capital Advisors LLC | 8,193 | $691.2K | 0.02% | −721−8.1% | Reduced |
| MUFG Securities EMEA plc | 8,109 | $684.2K | 0.02% | +6,867+552.9% | Added |
| Spire Wealth Management | 8,102 | $683.6K | 0.02% | +7,556+1,383.9% | Added |
| Yarbrough Capital, LLC | 8,010 | $675.8K | 0.02% | 00.0% | Unchanged |
| Peapack Gladstone Financial Corp | 7,857 | $663.0K | 0.01% | +892+12.8% | Added |
| Baker Tilly Wealth Management, LLC | 7,730 | $652.2K | 0.15% | −59−0.8% | Reduced |
| Altfest L J & Co Inc | 7,562 | $638.0K | 0.07% | +1,662+28.2% | Added |
| United Capital Financial Advisers, LLC | 7,545 | $636.6K | 0.00% | +167+2.3% | Added |
| Raiffeisen Bank International AG | 7,550 | $635.9K | 0.01% | +7,550 | New |
| Merit Financial Group, LLC | 7,483 | $631.3K | 0.01% | +813+12.2% | Added |
| Cresset Asset Management, LLC | 7,469 | $630.2K | 0.00% | +1,041+16.2% | Added |
| Private Advisor Group, LLC | 7,451 | $628.6K | 0.00% | −181−2.4% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 7,372 | $622.0K | 0.01% | 00.0% | Unchanged |
| Colony Capital, Inc. | 7,300 | $615.9K | 0.05% | +7,300 | New |
| Advisors Preferred, LLC | 7,377 | $615.8K | 0.09% | +7,377 | New |
| Baron Wealth Management LLC | 7,159 | $604.0K | 0.20% | 00.0% | Unchanged |
| Neo Ivy Capital Management | 7,114 | $600.2K | 0.15% | +1,362+23.7% | Added |
| Trust Point Inc. | 7,090 | $598.2K | 0.05% | −363−4.9% | Reduced |
| Fortress Wealth Group, LLC | 8,474 | $597.5K | 0.26% | +327+4.0% | Added |
| Enhancing Capital LLC | 7,030 | $593.1K | 0.43% | +150+2.2% | Added |
| Vise Technologies, Inc. | 6,972 | $588.2K | 0.02% | −64−0.9% | Reduced |
| Rockefeller Capital Management L.P. | 6,932 | $584.9K | 0.00% | −4,903−41.4% | Reduced |
| First Manhattan Co | 6,847 | $577.7K | 0.00% | 00.0% | Unchanged |
| Oarsman Capital, Inc. | 6,787 | $572.6K | 0.08% | −979−12.6% | Reduced |
| Hengehold Capital Management LLC | 6,760 | $570.3K | 0.05% | −29−0.4% | Reduced |
| Catalytic Wealth RIA, LLC | 6,716 | $566.6K | 0.02% | +4,029+149.9% | Added |
| Hilltop Holdings Inc. | 6,684 | $563.9K | 0.03% | +757+12.8% | Added |
| Coldstream Capital Management Inc | 6,654 | $561.4K | 0.01% | +1,027+18.3% | Added |
| Three Seasons Wealth, LLC | 6,632 | $559.5K | 0.06% | +2,227+50.6% | Added |
| Virtu Financial LLC | 6,526 | $551.0K | 0.03% | +6,526 | New |
| ICICI Prudential Asset Management Co Ltd | 6,506 | $548.9K | 0.06% | +1,219+23.1% | Added |
| Huntington National Bank | 6,407 | $540.6K | 0.00% | +1,499+30.5% | Added |
| Intellectus Partners, LLC | 6,384 | $538.6K | 0.10% | +463+7.8% | Added |
| Moran Wealth Management, LLC | 6,357 | $536.3K | 0.02% | −412−6.1% | Reduced |
| Buckhead Capital Management LLC | 6,303 | $531.8K | 0.19% | 00.0% | Unchanged |
| Ostrum Asset Management | 6,259 | $528.1K | 0.02% | −194−3.0% | Reduced |
| Chesapeake Capital Corp | 6,194 | $522.6K | 0.47% | +6,194 | New |
| Aprio Wealth Management, LLC | 6,152 | $519.1K | 0.05% | +853+16.1% | Added |
| Harbor Investment Advisory, LLC | 6,100 | $514.7K | 0.04% | 00.0% | Unchanged |
| STF Management LP | 6,078 | $512.8K | 0.19% | −191−3.0% | Reduced |
| Perigon Wealth Management, LLC | 6,058 | $511.1K | 0.01% | +38+0.6% | Added |
| Tema ETFs LLC | 6,042 | $509.8K | 0.04% | +6,042 | New |
| Prestige Wealth Management Group LLC | 6,024 | $508.2K | 0.10% | +259+4.5% | Added |
| NorthRock Partners, LLC | 6,001 | $506.3K | 0.01% | +1,402+30.5% | Added |
| Siemens Fonds Invest GmbH | 5,942 | $501.3K | 0.03% | −31−0.5% | Reduced |
| Michael B. Yongue | 5,925 | $499.9K | 0.35% | +241+4.2% | Added |
| 17 Capital Partners, LLC | 5,921 | $499.6K | 0.27% | +13+0.2% | Added |
| Birch Financial Group, LLC | 5,883 | $496.3K | 0.29% | +2,091+55.1% | Added |
| Steward Partners Investment Advisory, LLC | 5,880 | $496.1K | 0.00% | −869−12.9% | Reduced |
| AXS Investments LLC | 5,867 | $495.0K | 0.16% | +5,867 | New |
| IVC Wealth Advisors LLC | 5,860 | $494.4K | 0.22% | −597−9.2% | Reduced |
| Canandaigua National Bank & Trust Co | 5,796 | $489.0K | 0.04% | −9−0.2% | Reduced |
| Fidelis Capital Partners, LLC | 5,764 | $486.3K | 0.04% | −89−1.5% | Reduced |
| GWM Advisors LLC | 5,716 | $482.3K | 0.00% | −452−7.3% | Reduced |
| Beacon Pointe Advisors, LLC | 5,647 | $476.4K | 0.00% | +613+12.2% | Added |
| Stevens Capital Management LP | 5,550 | $468.0K | 0.06% | +5,550 | New |
| Forum Financial Management, LP | 5,526 | $466.2K | 0.01% | +688+14.2% | Added |
| Brookstone Capital Management | 5,495 | $463.6K | 0.01% | +5,495 | New |
| WSFS Capital Management, LLC | 5,474 | $461.8K | 0.02% | −450−7.6% | Reduced |
| Integrated Investment Consultants, LLC | 5,403 | $455.9K | 0.08% | 00.0% | Unchanged |
| Ramiah Investment Group | 5,357 | $452.0K | 0.40% | +216+4.2% | Added |
| Wedbush Securities Inc | 5,323 | $449.0K | 0.01% | −18−0.3% | Reduced |
| Strait & Sound Wealth Management LLC | 5,274 | $445.0K | 0.17% | +1,163+28.3% | Added |
| Marks Group Wealth Management, Inc | 5,250 | $442.9K | 0.04% | −521−9.0% | Reduced |
| Adviser Investments LLC | 5,237 | $441.8K | 0.01% | +13+0.2% | Added |
| Pembroke Management, LTD | 5,205 | $439.1K | 0.04% | +848+19.5% | Added |
| Penserra Capital Management LLC | 5,215 | $438.0K | 0.01% | +26+0.5% | Added |
| MAI Capital Management | 5,191 | $437.9K | 0.00% | +1,374+36.0% | Added |
| Howard Bailey Securities, LLC | 5,160 | $435.3K | 0.12% | −219−4.1% | Reduced |
| World Equity Group, Inc. | 5,096 | $429.9K | 0.10% | +5,096 | New |
| Emerald Advisers, LLC | 5,023 | $423.8K | 0.01% | −740−12.8% | Reduced |
| Voleon Capital Management LP | 4,866 | $410.5K | 0.01% | +1,617+49.8% | Added |
| Wealth Alliance | 4,861 | $410.2K | 0.04% | −12−0.2% | Reduced |
| Signaturefd, LLC | 4,797 | $404.7K | 0.01% | +9+0.2% | Added |
| Mount Yale Investment Advisors, LLC | 4,765 | $402.0K | 0.03% | +4,318+966.0% | Added |