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 |
|---|---|---|---|---|---|
| Krilogy Financial LLC | 24,117 | $1.70M | 0.06% | −1,157−4.6% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 21,331 | $1.72M | 0.00% | +1,151+5.7% | Added |
| Securian Asset Management, Inc | 20,398 | $1.72M | 0.05% | −1,560−7.1% | Reduced |
| Alps Advisors Inc | 20,750 | $1.75M | 0.01% | +9,412+83.0% | Added |
| Ieq Capital, LLC | 21,001 | $1.77M | 0.01% | −5,408−20.5% | Reduced |
| AG2R la Mondiale Gestion D'Actifs | 22,059 | $1.77M | 0.09% | 00.0% | Unchanged |
| Maryland State Retirement & Pension System | 21,232 | $1.79M | 0.04% | +936+4.6% | Added |
| Lincoln Capital LLC | 21,243 | $1.80M | 0.34% | −47−0.2% | Reduced |
| Commonwealth Equity Services, LLC | 21,361 | $1.80M | 0.00% | −1,722−7.5% | Reduced |
| Shaker Investments LLC | 21,583 | $1.82M | 0.73% | +21,583 | New |
| Wolverine Trading, LLC | 21,782 | $1.83M | 0.04% | +8,805+67.9% | Added |
| Moody National Bank Trust Division | 21,747 | $1.83M | 0.15% | −3,059−12.3% | Reduced |
| ASR Vermogensbeheer N.V. | 21,757 | $1.84M | 0.02% | −69−0.3% | Reduced |
| Gulf International Bank (UK) Ltd | 21,782 | $1.84M | 0.06% | +793+3.8% | Added |
| Crossmark Global Holdings, Inc. | 21,840 | $1.84M | 0.03% | +1,096+5.3% | Added |
| Aurora Investment Managers, LLC. | 22,302 | $1.88M | 1.02% | −55−0.2% | Reduced |
| Verdence Capital Advisors LLC | 24,313 | $1.90M | 0.11% | +660+2.8% | Added |
| Harbor Advisors LLC | 22,560 | $1.90M | 0.29% | 00.0% | Unchanged |
| Gotham Asset Management, LLC | 22,651 | $1.91M | 0.01% | +17,988+385.8% | Added |
| First Financial Bankshares Inc | 23,511 | $1.98M | 0.04% | +23,511 | New |
| Icon Wealth Advisors, LLC | 23,823 | $2.01M | 0.14% | −5,028−17.4% | Reduced |
| Generali Asset Management SPA SGR | 23,880 | $2.01M | 0.04% | +20,661+641.8% | Added |
| First Bank & Trust | 23,980 | $2.02M | 0.34% | −582−2.4% | Reduced |
| Portside Wealth Group, LLC | 23,990 | $2.02M | 0.28% | −2,496−9.4% | Reduced |
| Red Spruce Capital, LLC | 24,090 | $2.03M | 0.83% | +2,248+10.3% | Added |
| American Assets Capital Advisers, LLC | 24,364 | $2.06M | 2.17% | +9,193+60.6% | Added |
| Hartford Investment Management Co | 24,866 | $2.10M | 0.06% | −617−2.4% | Reduced |
| WoodTrust Financial Corp | 25,540 | $2.15M | 0.26% | +350+1.4% | Added |
| Candriam Luxembourg S.C.A. | 25,644 | $2.16M | 0.01% | +6,006+30.6% | Added |
| Harvest Fund Management Co., Ltd | 26,001 | $2.19M | 0.09% | +2,048+8.6% | Added |
| Kentucky Retirement Systems | 26,218 | $2.21M | 0.06% | −387−1.5% | Reduced |
| Pitcairn Co | 26,328 | $2.22M | 0.18% | −7,591−22.4% | Reduced |
| DoubleLine ETF Adviser LP | 26,395 | $2.23M | 0.67% | +1,539+6.2% | Added |
| Park Avenue Securities LLC | 26,523 | $2.24M | 0.02% | +291+1.1% | Added |
| Malaga Cove Capital, LLC | 26,545 | $2.24M | 0.81% | +271+1.0% | Added |
| Allianz Asset Management GmbH | 26,556 | $2.24M | 0.00% | +1,081+4.2% | Added |
| Wiley Bros.-Aintree Capital, LLC | 26,776 | $2.26M | 0.01% | +1,222+4.8% | Added |
| Lido Advisors, LLC | 27,536 | $2.32M | 0.01% | +6,381+30.2% | Added |
| Blue Capital, Inc. | 27,617 | $2.33M | 1.73% | +27,617 | New |
| Politan Capital Management LP | 27,635 | $2.33M | 0.21% | +2,744+11.0% | Added |
| AE Wealth Management LLC | 27,646 | $2.33M | 0.01% | −995−3.5% | Reduced |
| Susquehanna Fundamental Investments, LLC | 28,201 | $2.38M | 0.09% | −3,549−11.2% | Reduced |
| Captrust Financial Advisors | 28,250 | $2.38M | 0.00% | −1,479−5.0% | Reduced |
| Liontrust Investment Partners LLP | 28,324 | $2.39M | 0.03% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 28,605 | $2.41M | 0.01% | −1,028−3.5% | Reduced |
| Kampmann Melissa S. | 28,900 | $2.44M | 1.78% | +4,395+17.9% | Added |
| Intech Investment Management LLC | 29,505 | $2.49M | 0.02% | +5,614+23.5% | Added |
| Verition Fund Management LLC | 29,933 | $2.53M | 0.01% | −14,964−33.3% | Reduced |
| Banque Pictet & Cie SA | 29,999 | $2.53M | 0.03% | 00.0% | Unchanged |
| Sanctuary Advisors, LLC | 30,113 | $2.54M | 0.01% | +7,014+30.4% | Added |
| Stephens Inc | 30,794 | $2.60M | 0.03% | −895−2.8% | Reduced |
| QRG Capital Management, Inc. | 31,283 | $2.64M | 0.03% | +3,175+11.3% | Added |
| Gateway Investment Advisers LLC | 31,517 | $2.66M | 0.03% | −8,756−21.7% | Reduced |
| Principal Securities, Inc. | 31,786 | $2.68M | 0.04% | +2,012+6.8% | Added |
| Barbara Oil Co. | 32,000 | $2.70M | 1.01% | 00.0% | Unchanged |
| Scotia Capital Inc. | 32,121 | $2.71M | 0.01% | +689+2.2% | Added |
| Boomfish Wealth Group, LLC | 32,422 | $2.74M | 1.48% | +1,096+3.5% | Added |
| Mercer Global Advisors Inc | 32,529 | $2.74M | 0.00% | +13,722+73.0% | Added |
| First Foundation Advisors | 32,691 | $2.76M | 0.10% | −8,532−20.7% | Reduced |
| Mizuho Securities USA LLC | 30,856 | $2.76M | 0.06% | +1,694+5.8% | Added |
| Narwhal Capital Management | 33,113 | $2.79M | 0.21% | −47,308−58.8% | Reduced |
| Papp L Roy & Associates | 33,208 | $2.80M | 0.31% | −632−1.9% | Reduced |
| Centaurus Financial, Inc. | 33,487 | $2.83M | 0.13% | −73−0.2% | Reduced |
| Boston Private Wealth LLC | 33,487 | $2.83M | 0.15% | −1,982−5.6% | Reduced |
| EagleClaw Capital Managment, LLC | 33,850 | $2.86M | 0.40% | +19,550+136.7% | Added |
| Brinker Capital Investments, LLC | 33,889 | $2.86M | 0.02% | −1,153−3.3% | Reduced |
| Formula Growth Ltd | 34,000 | $2.87M | 1.02% | 00.0% | Unchanged |
| D.A. Davidson & Co. | 34,668 | $2.92M | 0.02% | +272+0.8% | Added |
| North Star Asset Management Inc | 34,939 | $2.95M | 0.12% | +448+1.3% | Added |
| Norinchukin Bank, The | 35,539 | $3.00M | 0.04% | +184+0.5% | Added |
| Ethic Inc. | 36,088 | $3.04M | 0.05% | +13,170+57.5% | Added |
| Profund Advisors LLC | 36,327 | $3.06M | 0.10% | −38−0.1% | Reduced |
| New Age Alpha Advisors, LLC | 37,234 | $3.14M | 0.13% | −493−1.3% | Reduced |
| Generate Investment Management Ltd | 37,573 | $3.17M | 0.16% | −40,854−52.1% | Reduced |
| Caisse de Depot Et Placement du Quebec | 37,577 | $3.17M | 0.01% | +37,577 | New |
| Cambridge Investment Research Advisors, Inc. | 37,838 | $3.19M | 0.01% | +1,556+4.3% | Added |
| Schroder Investment Management Group | 38,165 | $3.22M | 0.00% | −13,144−25.6% | Reduced |
| Caption Management, LLC | 38,290 | $3.23M | 0.19% | +9,290+32.0% | Added |
| SlateStone Wealth, LLC | 38,529 | $3.25M | 0.28% | +922+2.5% | Added |
| Nisa Investment Advisors, LLC | 38,851 | $3.28M | 0.01% | −21,827−36.0% | Reduced |
| Wealthfront Advisers LLC | 39,329 | $3.32M | 0.01% | +2,353+6.4% | Added |
| Davidson Kahn Capital Management, LLC | 39,356 | $3.32M | 1.85% | −961−2.4% | Reduced |
| Swiss Life Asset Management Ltd | 39,782 | $3.36M | 0.02% | +4,393+12.4% | Added |
| Kids Capital Management, L.P. | 40,000 | $3.37M | 2.67% | +40,000 | New |
| Nordea Investment Management AB | 40,746 | $3.40M | 0.00% | +4,596+12.7% | Added |
| Tredje AP-fonden | 40,683 | $3.43M | 0.03% | +8,622+26.9% | Added |
| Pathstone Holdings, LLC | 40,882 | $3.45M | 0.01% | −5,664−12.2% | Reduced |
| Employees Retirement System of Texas | 41,372 | $3.49M | 0.03% | 00.0% | Unchanged |
| Knollwood Investment Advisory, LLC | 41,863 | $3.53M | 0.32% | 00.0% | Unchanged |
| Linden Thomas Advisory Services, LLC | 43,207 | $3.65M | 0.37% | −107−0.2% | Reduced |
| Advisor Group Holdings, Inc. | 43,093 | $3.66M | 0.01% | −409−0.9% | Reduced |
| JustInvest LLC | 43,786 | $3.69M | 0.04% | +3,170+7.8% | Added |
| Oppenheimer & Co Inc | 43,830 | $3.70M | 0.05% | −3,495−7.4% | Reduced |
| Freestone Grove Partners LP | 44,063 | $3.72M | 0.03% | −137,814−75.8% | Reduced |
| La Banque Postale Asset Management SA | 44,370 | $3.74M | 0.05% | −748−1.7% | Reduced |
| UniSuper Management Pty Ltd | 44,637 | $3.77M | 0.02% | +5,655+14.5% | Added |
| S.E.E.D. Planning Group LLC | 44,733 | $3.77M | 1.10% | −1,598−3.4% | Reduced |
| CWM Advisors, LLC | 44,910 | $3.79M | 0.37% | +898+2.0% | Added |
| BCJ Capital Management, LLC | 45,221 | $3.82M | 0.23% | +45,221 | New |
| State of Alaska, Department of Revenue | 45,681 | $3.85M | 0.04% | −1,725−3.6% | Reduced |