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 |
|---|---|---|---|---|---|
| Baer Investment Advisory LLC | 49,369 | $3.62M | 5.91% | −3,407−6.5% | Reduced |
| Verition Fund Management LLC | 44,897 | $3.61M | 0.02% | −123,251−73.3% | Reduced |
| CWM Advisors, LLC | 44,012 | $3.54M | 0.39% | +1,637+3.9% | Added |
| O'Shaughnessy Asset Management, LLC | 43,641 | $3.51M | 0.02% | +7,248+19.9% | Added |
| Linden Thomas Advisory Services, LLC | 43,314 | $3.48M | 0.38% | −629−1.4% | Reduced |
| Advisor Group Holdings, Inc. | 43,502 | $3.47M | 0.01% | +29,477+210.2% | Added |
| Knollwood Investment Advisory, LLC | 41,863 | $3.37M | 0.32% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 41,399 | $3.33M | 0.01% | 00.0% | Unchanged |
| Employees Retirement System of Texas | 41,372 | $3.33M | 0.03% | +3,401+9.0% | Added |
| First Foundation Advisors | 41,223 | $3.31M | 0.12% | −12,869−23.8% | Reduced |
| Creative Planning | 40,772 | $3.28M | 0.00% | −12,459−23.4% | Reduced |
| JustInvest LLC | 40,616 | $3.27M | 0.04% | −2,025−4.7% | Reduced |
| Davidson Kahn Capital Management, LLC | 40,317 | $3.24M | 2.08% | +227+0.6% | Added |
| Gateway Investment Advisers LLC | 40,273 | $3.24M | 0.04% | +9,962+32.9% | Added |
| AXA S.A. | 39,822 | $3.20M | 0.01% | +5,749+16.9% | Added |
| Bank of Nova Scotia | 39,223 | $3.15M | 0.01% | −4,665−10.6% | Reduced |
| UniSuper Management Pty Ltd | 38,982 | $3.13M | 0.02% | −600−1.5% | Reduced |
| New Age Alpha Advisors, LLC | 37,727 | $3.03M | 0.13% | −11,885−24.0% | Reduced |
| SlateStone Wealth, LLC | 37,607 | $3.02M | 0.28% | +2,566+7.3% | Added |
| Wealthfront Advisers LLC | 36,976 | $2.97M | 0.01% | −12,866−25.8% | Reduced |
| Exchange Traded Concepts, LLC | 36,899 | $2.97M | 0.04% | +5,417+17.2% | Added |
| Oregon Public Employees Retirement Fund | 36,455 | $2.93M | 0.05% | +300+0.8% | Added |
| Profund Advisors LLC | 36,365 | $2.92M | 0.11% | +4,224+13.1% | Added |
| Cambridge Investment Research Advisors, Inc. | 36,282 | $2.92M | 0.01% | −1,849−4.8% | Reduced |
| Nordea Investment Management AB | 36,150 | $2.91M | 0.00% | +3,133+9.5% | Added |
| Omers Administration Corp | 35,993 | $2.89M | 0.02% | 00.0% | Unchanged |
| Boston Private Wealth LLC | 35,469 | $2.85M | 0.15% | −2,129−5.7% | Reduced |
| Swiss Life Asset Management Ltd | 35,389 | $2.85M | 0.02% | +6,362+21.9% | Added |
| Norinchukin Bank, The | 35,355 | $2.84M | 0.04% | +2,292+6.9% | Added |
| Brinker Capital Investments, LLC | 35,042 | $2.82M | 0.02% | −5,015−12.5% | Reduced |
| North Star Asset Management Inc | 34,491 | $2.77M | 0.12% | −11,804−25.5% | Reduced |
| D.A. Davidson & Co. | 34,396 | $2.77M | 0.02% | +1,107+3.3% | Added |
| Formula Growth Ltd | 34,000 | $2.73M | 1.03% | 00.0% | Unchanged |
| Pitcairn Co | 33,919 | $2.73M | 0.18% | −11,223−24.9% | Reduced |
| Papp L Roy & Associates | 33,840 | $2.72M | 0.32% | +592+1.8% | Added |
| XTX Topco Ltd | 33,633 | $2.70M | 0.11% | +33,633 | New |
| Centaurus Financial, Inc. | 33,560 | $2.70M | 0.16% | +11,904+55.0% | Added |
| Schonfeld Strategic Advisors LLC | 33,491 | $2.69M | 0.02% | +13,803+70.1% | Added |
| Tredje AP-fonden | 32,061 | $2.58M | 0.02% | 00.0% | Unchanged |
| Barbara Oil Co. | 32,000 | $2.57M | 1.01% | 00.0% | Unchanged |
| Susquehanna Fundamental Investments, LLC | 31,750 | $2.55M | 0.07% | −277,507−89.7% | Reduced |
| Stephens Inc | 31,689 | $2.55M | 0.04% | −1,284−3.9% | Reduced |
| Castle Hook Partners LP | 31,593 | $2.54M | 0.04% | +31,593 | New |
| Citadel Advisors LLC | 31,443 | $2.53M | 0.00% | −12,047−27.7% | Reduced |
| Scotia Capital Inc. | 31,432 | $2.53M | 0.01% | +189+0.6% | Added |
| Boomfish Wealth Group, LLC | 31,326 | $2.52M | 1.46% | +784+2.6% | Added |
| NewEdge Wealth, LLC | 26,298 | $2.51M | 0.04% | +18,335+230.3% | Added |
| Banque Pictet & Cie SA | 29,999 | $2.41M | 0.03% | 00.0% | Unchanged |
| Principal Securities, Inc. | 29,774 | $2.39M | 0.04% | +2,157+7.8% | Added |
| Captrust Financial Advisors | 29,729 | $2.39M | 0.01% | +1,125+3.9% | Added |
| Federation des caisses Desjardins du Quebec | 29,633 | $2.38M | 0.01% | +140.0% | Added |
| Mizuho Securities USA LLC | 29,162 | $2.34M | 0.05% | +29,162 | New |
| Caption Management, LLC | 29,000 | $2.33M | 0.21% | +13,552+87.7% | Added |
| Icon Wealth Advisors, LLC | 28,851 | $2.32M | 0.17% | +6,432+28.7% | Added |
| AE Wealth Management LLC | 28,641 | $2.30M | 0.02% | −2,929−9.3% | Reduced |
| Liontrust Investment Partners LLP | 28,324 | $2.28M | 0.03% | +5,152+22.2% | Added |
| Jump Financial, LLC | 28,181 | $2.27M | 0.03% | +28,181 | New |
| QRG Capital Management, Inc. | 28,108 | $2.26M | 0.02% | +2,990+11.9% | Added |
| Kentucky Retirement Systems | 26,605 | $2.14M | 0.06% | −1,743−6.1% | Reduced |
| Portside Wealth Group, LLC | 26,486 | $2.13M | 0.32% | +2,711+11.4% | Added |
| Ieq Capital, LLC | 26,409 | $2.12M | 0.01% | +6,363+31.7% | Added |
| Two Sigma Investments, LP | 26,299 | $2.11M | 0.00% | +26,299 | New |
| Malaga Cove Capital, LLC | 26,274 | $2.11M | 0.83% | +53+0.2% | Added |
| Park Avenue Securities LLC | 26,232 | $2.11M | 0.02% | +26,232 | New |
| Wiley Bros.-Aintree Capital, LLC | 25,554 | $2.05M | 0.02% | +10,480+69.5% | Added |
| Hartford Investment Management Co | 25,483 | $2.05M | 0.07% | −265−1.0% | Reduced |
| Allianz Asset Management GmbH | 25,475 | $2.05M | 0.00% | −8,374−24.7% | Reduced |
| Krilogy Financial LLC | 25,274 | $2.03M | 0.12% | +5,539+28.1% | Added |
| WoodTrust Financial Corp | 25,190 | $2.02M | 0.28% | 00.0% | Unchanged |
| Politan Capital Management LP | 24,891 | $2.00M | 0.14% | +24,891 | New |
| DoubleLine ETF Adviser LP | 24,856 | $2.00M | 0.64% | +327+1.3% | Added |
| Moody National Bank Trust Division | 24,806 | $1.99M | 0.18% | −2,166−8.0% | Reduced |
| First Bank & Trust | 24,562 | $1.97M | 0.35% | −175−0.7% | Reduced |
| Kampmann Melissa S. | 24,505 | $1.97M | 1.48% | +555+2.3% | Added |
| Harvest Fund Management Co., Ltd | 23,953 | $1.93M | 0.09% | −1,954−7.5% | Reduced |
| Intech Investment Management LLC | 23,891 | $1.92M | 0.02% | −9,000−27.4% | Reduced |
| Verdence Capital Advisors LLC | 23,653 | $1.90M | 0.13% | −1,824−7.2% | Reduced |
| LGT Fund Management Co Ltd. | 23,121 | $1.86M | 0.16% | −17,835−43.5% | Reduced |
| Sanctuary Advisors, LLC | 23,099 | $1.86M | 0.01% | −4,344−15.8% | Reduced |
| Commonwealth Equity Services, LLC | 23,083 | $1.86M | 0.00% | −7,888−25.5% | Reduced |
| Ethic Inc. | 22,918 | $1.85M | 0.03% | +22,918 | New |
| Dark Forest Capital Management LP | 22,653 | $1.82M | 0.07% | +19,407+597.9% | Added |
| SummitTX Capital, L.P. | 22,585 | $1.82M | 0.08% | +22,585 | New |
| Harbor Advisors LLC | 22,560 | $1.81M | 0.30% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 22,453 | $1.81M | 0.05% | +2,375+11.8% | Added |
| Aurora Investment Managers, LLC. | 22,357 | $1.80M | 1.09% | 00.0% | Unchanged |
| AG2R la Mondiale Gestion D'Actifs | 22,059 | $1.77M | 0.09% | +2,605+13.4% | Added |
| Securian Asset Management, Inc | 21,958 | $1.77M | 0.05% | −288−1.3% | Reduced |
| Red Spruce Capital, LLC | 21,842 | $1.76M | 0.76% | +5,975+37.7% | Added |
| ASR Vermogensbeheer N.V. | 21,826 | $1.75M | 0.02% | +15,049+222.1% | Added |
| Capital International Inc | 21,373 | $1.72M | 0.02% | +434+2.1% | Added |
| Avantax Advisory Services, Inc. | 21,294 | $1.71M | 0.01% | +555+2.7% | Added |
| Lincoln Capital LLC | 21,290 | $1.71M | 0.33% | +15+0.1% | Added |
| Lido Advisors, LLC | 21,155 | $1.70M | 0.01% | +13,003+159.5% | Added |
| Gulf International Bank (UK) Ltd | 20,989 | $1.69M | 0.06% | −2,804−11.8% | Reduced |
| M&T Bank Corp | 20,968 | $1.69M | 0.01% | −1,203−5.4% | Reduced |
| B.O.S.S. Retirement Advisors, LLC | 20,902 | $1.68M | 0.42% | −1,464−6.5% | Reduced |
| Quotient Wealth Partners, LLC | 20,847 | $1.68M | 0.05% | −744−3.4% | Reduced |
| Crossmark Global Holdings, Inc. | 20,744 | $1.67M | 0.03% | −740−3.4% | Reduced |
| Louisbourg Investments Inc. | 26,530 | $1.66M | 0.39% | +26,530 | New |