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, 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
- 873
- +26 vs. Q1 2025
- Shares held
- 424.8M
- −3.49M (−0.8%) vs. Q1 2025
- Total value
- $34.2B
- +$258.5M (+0.8%) vs. Q1 2025
- New holders
- 101
- 355 more added
- Sold out
- 75
- 315 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 | 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, 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 |
|---|---|---|---|---|---|
| Scott Marsh Financial, LLC | 11,350 | $912.5K | 0.34% | +11,350 | New |
| Personal Cfo Solutions, LLC | 11,419 | $918.1K | 0.17% | −210−1.8% | Reduced |
| Postrock Partners LLC | 11,440 | $919.8K | 0.44% | 00.0% | Unchanged |
| Accretive Wealth Partners, LLC | 11,443 | $920.0K | 0.30% | +177+1.6% | Added |
| Vident Advisory, LLC | 11,500 | $924.6K | 0.01% | −7,832−40.5% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 11,526 | $926.7K | 0.05% | −139−1.2% | Reduced |
| Bleakley Financial Group, LLC | 11,530 | $927.0K | 0.02% | +595+5.4% | Added |
| Westerkirk Capital Inc. | 11,700 | $940.7K | 0.12% | +11,700 | New |
| Sapient Capital LLC | 11,751 | $944.8K | 0.02% | −3,151−21.1% | Reduced |
| Rockefeller Capital Management L.P. | 11,835 | $951.5K | 0.00% | +1,126+10.5% | Added |
| Copperwynd Financial, LLC | 12,018 | $966.2K | 0.24% | +2,936+32.3% | Added |
| Fifth Third Bancorp | 12,029 | $967.1K | 0.00% | +1,961+19.5% | Added |
| Bayesian Capital Management, LP | 12,100 | $972.8K | 0.15% | +12,100 | New |
| E. Ohman J:or Asset Management AB | 12,300 | $988.9K | 0.02% | 00.0% | Unchanged |
| Horizon Investments, LLC | 12,381 | $995.4K | 0.02% | +6,304+103.7% | Added |
| Howard Capital Management Inc. | 12,524 | $1.01M | 0.02% | +2,797+28.8% | Added |
| Regatta Capital Group, LLC | 13,034 | $1.05M | 0.18% | +413+3.3% | Added |
| Wolverine Trading, LLC | 12,977 | $1.05M | 0.03% | +957+8.0% | Added |
| Bell Bank | 13,183 | $1.06M | 0.05% | −213−1.6% | Reduced |
| S-Bank Fund Management Ltd | 13,316 | $1.07M | 0.16% | −32,499−70.9% | Reduced |
| TownSquare Capital, LLC | 13,334 | $1.07M | 0.10% | −140,217−91.3% | Reduced |
| Vestmark Advisory Solutions, Inc. | 13,335 | $1.07M | 0.02% | +2,295+20.8% | Added |
| Investment Management Corp of Ontario | 13,377 | $1.08M | 0.02% | +1,483+12.5% | Added |
| Northwestern Mutual Investment Management Company, LLC | 13,458 | $1.08M | 0.02% | +54+0.4% | Added |
| Bokf, NA | 13,471 | $1.08M | 0.02% | −295−2.1% | Reduced |
| Gibbs Wealth Management | 13,758 | $1.11M | 0.21% | +3,032+28.3% | Added |
| RMR Wealth Builders | 13,888 | $1.12M | 0.10% | −31−0.2% | Reduced |
| RSM US Wealth Management LLC | 14,081 | $1.13M | 0.02% | +3,209+29.5% | Added |
| Chicago Trust Co NA | 14,240 | $1.14M | 0.16% | +750+5.6% | Added |
| EagleClaw Capital Managment, LLC | 14,300 | $1.15M | 0.17% | −150−1.0% | Reduced |
| Phraction Management LLC | 14,342 | $1.15M | 0.37% | −630−4.2% | Reduced |
| Sumitomo Life Insurance Co | 14,427 | $1.16M | 0.08% | −9,435−39.5% | Reduced |
| Waterway Wealth Management, LLC | 14,800 | $1.19M | 0.36% | +14,800 | New |
| Toroso Investments, LLC | 14,838 | $1.19M | 0.01% | −734−4.7% | Reduced |
| Tokio Marine Asset Management Co Ltd | 14,952 | $1.20M | 0.05% | +1,470+10.9% | Added |
| TradeLink Capital LLC | 15,081 | $1.21M | 4.30% | +15,081 | New |
| Metis Global Partners, LLC | 15,138 | $1.22M | 0.03% | −1,520−9.1% | Reduced |
| American Assets Capital Advisers, LLC | 15,171 | $1.22M | 1.23% | +5,637+59.1% | Added |
| Winton Group Ltd | 15,285 | $1.23M | 0.06% | +15,285 | New |
| Grove Bank & Trust | 15,350 | $1.23M | 0.15% | +1,211+8.6% | Added |
| Conestoga Capital Advisors, LLC | 15,490 | $1.25M | 0.02% | −50.0% | Reduced |
| Kestra Advisory Services, LLC | 15,572 | $1.25M | 0.01% | −299−1.9% | Reduced |
| Voya Financial Advisors, Inc. | 15,538 | $1.25M | 0.13% | −816−5.0% | Reduced |
| Redmond Asset Management, LLC | 15,807 | $1.27M | 0.30% | −146−0.9% | Reduced |
| Guidance Capital, Inc | 13,581 | $1.28M | 0.37% | +44+0.3% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 16,128 | $1.30M | 0.00% | −23,420−59.2% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 16,159 | $1.30M | 0.01% | +3,089+23.6% | Added |
| Squarepoint Ops LLC | 16,162 | $1.30M | 0.00% | +337+2.1% | Added |
| Meeder Asset Management Inc | 16,259 | $1.31M | 0.08% | −97,449−85.7% | Reduced |
| Norden Group LLC | 16,617 | $1.34M | 0.15% | +1,060+6.8% | Added |
| Institute for Wealth Management, LLC. | 16,717 | $1.34M | 0.15% | −800−4.6% | Reduced |
| Alliance Wealth Advisors, LLC | 16,727 | $1.34M | 0.33% | +529+3.3% | Added |
| Bessemer Group Inc | 16,743 | $1.35M | 0.00% | +20.0% | Added |
| Concentric Capital Strategies, LP | 16,758 | $1.35M | 0.08% | +16,758 | New |
| Dynasty Wealth Management, LLC | 17,186 | $1.38M | 0.02% | +1,156+7.2% | Added |
| Keybank National Association | 17,368 | $1.40M | 0.01% | −279−1.6% | Reduced |
| SG Americas Securities, LLC | 17,416 | $1.40M | 0.01% | +1,699+10.8% | Added |
| Natixis | 17,645 | $1.42M | 0.01% | −7,665−30.3% | Reduced |
| Callan Family Office, LLC | 17,673 | $1.42M | 0.04% | +10,064+132.3% | Added |
| Ameritas Investment Partners, Inc. | 17,815 | $1.43M | 0.05% | +410+2.4% | Added |
| B. Metzler seel. Sohn & Co. AG | 17,957 | $1.44M | 0.01% | +2,404+15.5% | Added |
| Commerce Bank | 18,133 | $1.46M | 0.01% | +6,188+51.8% | Added |
| Dai-Ichi Life Insurance Company, Ltd | 18,425 | $1.48M | 0.04% | 00.0% | Unchanged |
| Markel Group Inc.SuperinvestorMarkel Group | 18,600 | $1.50M | 0.01% | 00.0% | Unchanged |
| Chicago Partners Investment Group LLC | 16,504 | $1.50M | 0.04% | +1,999+13.8% | Added |
| Mercer Global Advisors Inc | 18,807 | $1.51M | 0.00% | −597−3.1% | Reduced |
| New Mexico Educational Retirement Board | 19,200 | $1.54M | 0.05% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 19,638 | $1.58M | 0.01% | +2,833+16.9% | Added |
| Itau Unibanco Holding S.A. | 19,930 | $1.60M | 0.06% | −8,063−28.8% | Reduced |
| Moors & Cabot, Inc. | 20,233 | $1.63M | 0.08% | +20,233 | New |
| Maryland State Retirement & Pension System | 20,296 | $1.63M | 0.04% | +856+4.4% | Added |
| Wealth Enhancement Advisory Services, LLC | 20,180 | $1.66M | 0.00% | +2,125+11.8% | Added |
| Louisbourg Investments Inc. | 26,530 | $1.66M | 0.39% | +26,530 | New |
| Crossmark Global Holdings, Inc. | 20,744 | $1.67M | 0.03% | −740−3.4% | Reduced |
| Quotient Wealth Partners, LLC | 20,847 | $1.68M | 0.05% | −744−3.4% | Reduced |
| B.O.S.S. Retirement Advisors, LLC | 20,902 | $1.68M | 0.42% | −1,464−6.5% | Reduced |
| M&T Bank Corp | 20,968 | $1.69M | 0.01% | −1,203−5.4% | Reduced |
| Gulf International Bank (UK) Ltd | 20,989 | $1.69M | 0.06% | −2,804−11.8% | Reduced |
| Lido Advisors, LLC | 21,155 | $1.70M | 0.01% | +13,003+159.5% | Added |
| Lincoln Capital LLC | 21,290 | $1.71M | 0.33% | +15+0.1% | Added |
| Avantax Advisory Services, Inc. | 21,294 | $1.71M | 0.01% | +555+2.7% | Added |
| Capital International Inc | 21,373 | $1.72M | 0.02% | +434+2.1% | Added |
| ASR Vermogensbeheer N.V. | 21,826 | $1.75M | 0.02% | +15,049+222.1% | Added |
| Red Spruce Capital, LLC | 21,842 | $1.76M | 0.76% | +5,975+37.7% | Added |
| Securian Asset Management, Inc | 21,958 | $1.77M | 0.05% | −288−1.3% | Reduced |
| AG2R la Mondiale Gestion D'Actifs | 22,059 | $1.77M | 0.09% | +2,605+13.4% | Added |
| Aurora Investment Managers, LLC. | 22,357 | $1.80M | 1.09% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 22,453 | $1.81M | 0.05% | +2,375+11.8% | Added |
| Harbor Advisors LLC | 22,560 | $1.81M | 0.30% | 00.0% | Unchanged |
| SummitTX Capital, L.P. | 22,585 | $1.82M | 0.08% | +22,585 | New |
| Dark Forest Capital Management LP | 22,653 | $1.82M | 0.07% | +19,407+597.9% | Added |
| Ethic Inc. | 22,918 | $1.85M | 0.03% | +22,918 | New |
| Commonwealth Equity Services, LLC | 23,083 | $1.86M | 0.00% | −7,888−25.5% | Reduced |
| Sanctuary Advisors, LLC | 23,099 | $1.86M | 0.01% | −4,344−15.8% | Reduced |
| LGT Fund Management Co Ltd. | 23,121 | $1.86M | 0.16% | −17,835−43.5% | Reduced |
| Verdence Capital Advisors LLC | 23,653 | $1.90M | 0.13% | −1,824−7.2% | Reduced |
| Intech Investment Management LLC | 23,891 | $1.92M | 0.02% | −9,000−27.4% | Reduced |
| Harvest Fund Management Co., Ltd | 23,953 | $1.93M | 0.09% | −1,954−7.5% | Reduced |
| Kampmann Melissa S. | 24,505 | $1.97M | 1.48% | +555+2.3% | Added |
| First Bank & Trust | 24,562 | $1.97M | 0.35% | −175−0.7% | Reduced |