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 |
|---|---|---|---|---|---|
| Oregon Public Employees Retirement Fund | 48,424 | $4.09M | 0.05% | +11,969+32.8% | Added |
| Natixis | 47,943 | $4.04M | 0.02% | +30,298+171.7% | Added |
| Yousif Capital Management, LLC | 47,136 | $3.98M | 0.04% | −2,716−5.4% | Reduced |
| Taikang Asset Management (Hong Kong) Co Ltd | 45,969 | $3.88M | 0.43% | −20,797−31.1% | Reduced |
| Exchange Traded Concepts, LLC | 45,880 | $3.87M | 0.04% | +8,981+24.3% | Added |
| State of Alaska, Department of Revenue | 45,681 | $3.85M | 0.04% | −1,725−3.6% | Reduced |
| BCJ Capital Management, LLC | 45,221 | $3.82M | 0.23% | +45,221 | New |
| CWM Advisors, LLC | 44,910 | $3.79M | 0.37% | +898+2.0% | Added |
| S.E.E.D. Planning Group LLC | 44,733 | $3.77M | 1.10% | −1,598−3.4% | Reduced |
| UniSuper Management Pty Ltd | 44,637 | $3.77M | 0.02% | +5,655+14.5% | Added |
| La Banque Postale Asset Management SA | 44,370 | $3.74M | 0.05% | −748−1.7% | Reduced |
| Freestone Grove Partners LP | 44,063 | $3.72M | 0.03% | −137,814−75.8% | Reduced |
| Oppenheimer & Co Inc | 43,830 | $3.70M | 0.05% | −3,495−7.4% | Reduced |
| JustInvest LLC | 43,786 | $3.69M | 0.04% | +3,170+7.8% | Added |
| Advisor Group Holdings, Inc. | 43,093 | $3.66M | 0.01% | −409−0.9% | Reduced |
| Linden Thomas Advisory Services, LLC | 43,207 | $3.65M | 0.37% | −107−0.2% | Reduced |
| Knollwood Investment Advisory, LLC | 41,863 | $3.53M | 0.32% | 00.0% | Unchanged |
| Employees Retirement System of Texas | 41,372 | $3.49M | 0.03% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 40,882 | $3.45M | 0.01% | −5,664−12.2% | Reduced |
| Tredje AP-fonden | 40,683 | $3.43M | 0.03% | +8,622+26.9% | Added |
| Nordea Investment Management AB | 40,746 | $3.40M | 0.00% | +4,596+12.7% | Added |
| Kids Capital Management, L.P. | 40,000 | $3.37M | 2.67% | +40,000 | New |
| Swiss Life Asset Management Ltd | 39,782 | $3.36M | 0.02% | +4,393+12.4% | Added |
| Davidson Kahn Capital Management, LLC | 39,356 | $3.32M | 1.85% | −961−2.4% | Reduced |
| Wealthfront Advisers LLC | 39,329 | $3.32M | 0.01% | +2,353+6.4% | Added |
| Nisa Investment Advisors, LLC | 38,851 | $3.28M | 0.01% | −21,827−36.0% | Reduced |
| SlateStone Wealth, LLC | 38,529 | $3.25M | 0.28% | +922+2.5% | Added |
| Caption Management, LLC | 38,290 | $3.23M | 0.19% | +9,290+32.0% | Added |
| Schroder Investment Management Group | 38,165 | $3.22M | 0.00% | −13,144−25.6% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 37,838 | $3.19M | 0.01% | +1,556+4.3% | Added |
| Caisse de Depot Et Placement du Quebec | 37,577 | $3.17M | 0.01% | +37,577 | New |
| Generate Investment Management Ltd | 37,573 | $3.17M | 0.16% | −40,854−52.1% | Reduced |
| New Age Alpha Advisors, LLC | 37,234 | $3.14M | 0.13% | −493−1.3% | Reduced |
| Profund Advisors LLC | 36,327 | $3.06M | 0.10% | −38−0.1% | Reduced |
| Ethic Inc. | 36,088 | $3.04M | 0.05% | +13,170+57.5% | Added |
| Norinchukin Bank, The | 35,539 | $3.00M | 0.04% | +184+0.5% | Added |
| North Star Asset Management Inc | 34,939 | $2.95M | 0.12% | +448+1.3% | Added |
| D.A. Davidson & Co. | 34,668 | $2.92M | 0.02% | +272+0.8% | Added |
| Formula Growth Ltd | 34,000 | $2.87M | 1.02% | 00.0% | Unchanged |
| Brinker Capital Investments, LLC | 33,889 | $2.86M | 0.02% | −1,153−3.3% | Reduced |
| EagleClaw Capital Managment, LLC | 33,850 | $2.86M | 0.40% | +19,550+136.7% | Added |
| Boston Private Wealth LLC | 33,487 | $2.83M | 0.15% | −1,982−5.6% | Reduced |
| Centaurus Financial, Inc. | 33,487 | $2.83M | 0.13% | −73−0.2% | Reduced |
| Papp L Roy & Associates | 33,208 | $2.80M | 0.31% | −632−1.9% | Reduced |
| Narwhal Capital Management | 33,113 | $2.79M | 0.21% | −47,308−58.8% | Reduced |
| Mizuho Securities USA LLC | 30,856 | $2.76M | 0.06% | +1,694+5.8% | Added |
| First Foundation Advisors | 32,691 | $2.76M | 0.10% | −8,532−20.7% | Reduced |
| Mercer Global Advisors Inc | 32,529 | $2.74M | 0.00% | +13,722+73.0% | Added |
| Boomfish Wealth Group, LLC | 32,422 | $2.74M | 1.48% | +1,096+3.5% | Added |
| Scotia Capital Inc. | 32,121 | $2.71M | 0.01% | +689+2.2% | Added |
| Barbara Oil Co. | 32,000 | $2.70M | 1.01% | 00.0% | Unchanged |
| Principal Securities, Inc. | 31,786 | $2.68M | 0.04% | +2,012+6.8% | Added |
| Gateway Investment Advisers LLC | 31,517 | $2.66M | 0.03% | −8,756−21.7% | Reduced |
| QRG Capital Management, Inc. | 31,283 | $2.64M | 0.03% | +3,175+11.3% | Added |
| Stephens Inc | 30,794 | $2.60M | 0.03% | −895−2.8% | Reduced |
| Sanctuary Advisors, LLC | 30,113 | $2.54M | 0.01% | +7,014+30.4% | Added |
| Banque Pictet & Cie SA | 29,999 | $2.53M | 0.03% | 00.0% | Unchanged |
| Verition Fund Management LLC | 29,933 | $2.53M | 0.01% | −14,964−33.3% | Reduced |
| Intech Investment Management LLC | 29,505 | $2.49M | 0.02% | +5,614+23.5% | Added |
| Kampmann Melissa S. | 28,900 | $2.44M | 1.78% | +4,395+17.9% | Added |
| Federation des caisses Desjardins du Quebec | 28,605 | $2.41M | 0.01% | −1,028−3.5% | Reduced |
| Liontrust Investment Partners LLP | 28,324 | $2.39M | 0.03% | 00.0% | Unchanged |
| Captrust Financial Advisors | 28,250 | $2.38M | 0.00% | −1,479−5.0% | Reduced |
| Susquehanna Fundamental Investments, LLC | 28,201 | $2.38M | 0.09% | −3,549−11.2% | Reduced |
| AE Wealth Management LLC | 27,646 | $2.33M | 0.01% | −995−3.5% | Reduced |
| Politan Capital Management LP | 27,635 | $2.33M | 0.21% | +2,744+11.0% | Added |
| Blue Capital, Inc. | 27,617 | $2.33M | 1.73% | +27,617 | New |
| Lido Advisors, LLC | 27,536 | $2.32M | 0.01% | +6,381+30.2% | Added |
| Wiley Bros.-Aintree Capital, LLC | 26,776 | $2.26M | 0.01% | +1,222+4.8% | Added |
| Allianz Asset Management GmbH | 26,556 | $2.24M | 0.00% | +1,081+4.2% | Added |
| Malaga Cove Capital, LLC | 26,545 | $2.24M | 0.81% | +271+1.0% | Added |
| Park Avenue Securities LLC | 26,523 | $2.24M | 0.02% | +291+1.1% | Added |
| DoubleLine ETF Adviser LP | 26,395 | $2.23M | 0.67% | +1,539+6.2% | Added |
| Pitcairn Co | 26,328 | $2.22M | 0.18% | −7,591−22.4% | Reduced |
| Kentucky Retirement Systems | 26,218 | $2.21M | 0.06% | −387−1.5% | Reduced |
| Harvest Fund Management Co., Ltd | 26,001 | $2.19M | 0.09% | +2,048+8.6% | Added |
| Candriam Luxembourg S.C.A. | 25,644 | $2.16M | 0.01% | +6,006+30.6% | Added |
| WoodTrust Financial Corp | 25,540 | $2.15M | 0.26% | +350+1.4% | Added |
| Hartford Investment Management Co | 24,866 | $2.10M | 0.06% | −617−2.4% | Reduced |
| American Assets Capital Advisers, LLC | 24,364 | $2.06M | 2.17% | +9,193+60.6% | Added |
| Red Spruce Capital, LLC | 24,090 | $2.03M | 0.83% | +2,248+10.3% | Added |
| Portside Wealth Group, LLC | 23,990 | $2.02M | 0.28% | −2,496−9.4% | Reduced |
| First Bank & Trust | 23,980 | $2.02M | 0.34% | −582−2.4% | Reduced |
| Generali Asset Management SPA SGR | 23,880 | $2.01M | 0.04% | +20,661+641.8% | Added |
| Icon Wealth Advisors, LLC | 23,823 | $2.01M | 0.14% | −5,028−17.4% | Reduced |
| First Financial Bankshares Inc | 23,511 | $1.98M | 0.04% | +23,511 | New |
| Gotham Asset Management, LLC | 22,651 | $1.91M | 0.01% | +17,988+385.8% | Added |
| Harbor Advisors LLC | 22,560 | $1.90M | 0.29% | 00.0% | Unchanged |
| Verdence Capital Advisors LLC | 24,313 | $1.90M | 0.11% | +660+2.8% | Added |
| Aurora Investment Managers, LLC. | 22,302 | $1.88M | 1.02% | −55−0.2% | Reduced |
| Crossmark Global Holdings, Inc. | 21,840 | $1.84M | 0.03% | +1,096+5.3% | Added |
| Gulf International Bank (UK) Ltd | 21,782 | $1.84M | 0.06% | +793+3.8% | Added |
| ASR Vermogensbeheer N.V. | 21,757 | $1.84M | 0.02% | −69−0.3% | Reduced |
| Moody National Bank Trust Division | 21,747 | $1.83M | 0.15% | −3,059−12.3% | Reduced |
| Wolverine Trading, LLC | 21,782 | $1.83M | 0.04% | +8,805+67.9% | Added |
| Shaker Investments LLC | 21,583 | $1.82M | 0.73% | +21,583 | New |
| Commonwealth Equity Services, LLC | 21,361 | $1.80M | 0.00% | −1,722−7.5% | Reduced |
| Lincoln Capital LLC | 21,243 | $1.80M | 0.34% | −47−0.2% | Reduced |
| Maryland State Retirement & Pension System | 21,232 | $1.79M | 0.04% | +936+4.6% | Added |
| AG2R la Mondiale Gestion D'Actifs | 22,059 | $1.77M | 0.09% | 00.0% | Unchanged |