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 2026
Institutional positions in Costar Group, Inc. as of Jun 30, 2026. 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
- 760
- −28 vs. Q1 2026
- Shares held
- 414.0M
- +5.90M (+1.4%) vs. Q1 2026
- Total value
- $11.7B
- −$4.74B (−28.8%) vs. Q1 2026
- New holders
- 115
- 303 more added
- Sold out
- 143
- 266 more reduced
9 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Brevan Howard Capital Management LP | 12,202 | $345.6K | 0.00% | +2,716+28.6% | Added |
| Peapack Gladstone Financial Corp | 12,293 | $348.0K | 0.00% | +2,226+22.1% | Added |
| Jackson Thornton Asset Management, LLC | 12,298 | $348.3K | 0.03% | +12,298 | New |
| MUFG Securities Americas Inc. | 12,300 | $348.3K | 0.02% | +573+4.9% | Added |
| North Dakota State Investment Board | 12,419 | $351.7K | 0.01% | +349+2.9% | Added |
| Worth Venture Partners, LLC | 12,500 | $354.0K | 0.80% | +12,500 | New |
| Twinbeech Capital LP | 12,589 | $356.5K | 0.06% | −115,427−90.2% | Reduced |
| Westerkirk Capital Inc. | 12,600 | $356.8K | 0.03% | 00.0% | Unchanged |
| Meeder Asset Management Inc | 12,720 | $360.2K | 0.02% | +7,328+135.9% | Added |
| NorthCrest Asset Manangement, LLC | 12,361 | $360.8K | 0.01% | +12,361 | New |
| Northwestern Mutual Wealth Management Co | 12,753 | $361.2K | 0.00% | −3,468−21.4% | Reduced |
| Citizens Financial Group Inc | 12,982 | $367.6K | 0.00% | +12,982 | New |
| Benjamin Edwards Inc | 13,064 | $369.9K | 0.00% | −2,831−17.8% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 13,093 | $370.8K | 0.00% | −468−3.5% | Reduced |
| Regatta Capital Group, LLC | 13,282 | $376.1K | 0.05% | +459+3.6% | Added |
| Centaurus Financial, Inc. | 13,390 | $379.0K | 0.01% | −17,144−56.1% | Reduced |
| Parcion Private Wealth LLC | 13,460 | $381.2K | 0.02% | +13,460 | New |
| First Foundation Advisors | 13,494 | $382.2K | 0.01% | −4,802−26.2% | Reduced |
| Banque Pictet & Cie SA | 13,550 | $383.7K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 13,582 | $384.6K | 0.00% | +10,026+281.9% | Added |
| Coldstream Capital Management Inc | 13,650 | $386.6K | 0.00% | +7,109+108.7% | Added |
| E. Ohman J:or Asset Management AB | 13,820 | $391.4K | 0.01% | 00.0% | Unchanged |
| Azzad Asset Management Inc | 14,112 | $399.6K | 0.04% | +2,599+22.6% | Added |
| Capstone Investment Advisors, LLC | 14,117 | $399.8K | 0.00% | +4,489+46.6% | Added |
| Integrated Wealth Concepts LLC | 14,178 | $401.5K | 0.00% | +5,895+71.2% | Added |
| Lincoln Capital LLC | 14,265 | $404.0K | 0.07% | −1,428−9.1% | Reduced |
| NBC Securities, Inc. | 14,303 | $405.1K | 0.03% | −166−1.1% | Reduced |
| Natixis | 14,356 | $406.6K | 0.00% | +6,719+88.0% | Added |
| Mirova | 14,420 | $408.4K | 0.02% | −64,130−81.6% | Reduced |
| Vestmark Advisory Solutions, Inc. | 14,431 | $408.7K | 0.00% | +491+3.5% | Added |
| Horizon Investments, LLC | 14,645 | $414.7K | 0.00% | +271+1.9% | Added |
| AlphaGrep UK Ltd | 14,994 | $424.6K | 0.13% | +9,783+187.7% | Added |
| Fieldview Capital Management, LLC | 15,098 | $427.6K | 0.12% | +15,098 | New |
| Aaron Wealth Advisors | 15,157 | $429.2K | 0.02% | +7,027+86.4% | Added |
| Boothbay Fund Management, LLC | 15,231 | $431.3K | 0.01% | −4,242−21.8% | Reduced |
| Third View Private Wealth, LLC | 15,258 | $432.1K | 0.05% | −7,459−32.8% | Reduced |
| Metis Global Partners, LLC | 15,844 | $448.7K | 0.01% | +3,844+32.0% | Added |
| MUFG Securities EMEA plc | 15,983 | $452.6K | 0.00% | −1,405−8.1% | Reduced |
| Redmond Asset Management, LLC | 16,008 | $453.3K | 0.11% | +93+0.6% | Added |
| Two Sigma Securities, LLC | 16,096 | $455.8K | 0.04% | +6,472+67.2% | Added |
| Evolve Private Wealth, LLC | 16,163 | $457.7K | 0.03% | +10,198+171.0% | Added |
| DRW Securities, LLC | 16,178 | $458.2K | 0.03% | −11,595−41.7% | Reduced |
| Waterway Wealth Management, LLC | 16,214 | $459.2K | 0.09% | −11,456−41.4% | Reduced |
| RMR Wealth Builders | 16,749 | $474.3K | 0.03% | +173+1.0% | Added |
| Fielder Capital Group LLC | 16,784 | $475.3K | 0.10% | +16,784 | New |
| Keybank National Association | 17,121 | $484.9K | 0.00% | −6,059−26.1% | Reduced |
| Empowered Funds, LLC | 17,174 | $486.4K | 0.00% | −23,813−58.1% | Reduced |
| Savvy Advisors, Inc. | 17,251 | $488.5K | 0.01% | +10,847+169.4% | Added |
| Commonwealth Equity Services, LLC | 17,319 | $490.5K | 0.00% | +3,445+24.8% | Added |
| Wedmont Private Capital | 17,302 | $491.2K | 0.01% | +17,302 | New |
| Snowden Capital Advisors LLC | 17,586 | $498.0K | 0.01% | +10,644+153.3% | Added |
| Intellectus Partners, LLC | 17,757 | $502.9K | 0.09% | −4,039−18.5% | Reduced |
| Bessemer Group Inc | 17,763 | $503.0K | 0.00% | +88+0.5% | Added |
| Paragon Capital Management Inc | 18,183 | $514.9K | 0.38% | −177−1.0% | Reduced |
| SummitTX Capital, L.P. | 18,229 | $516.2K | 0.01% | +18,229 | New |
| NewEdge Wealth, LLC | 18,538 | $525.0K | 0.01% | +2,737+17.3% | Added |
| Schonfeld Strategic Advisors LLC | 18,670 | $528.7K | 0.00% | +18,670 | New |
| DoubleLine ETF Adviser LP | 18,744 | $530.8K | 0.22% | −3,341−15.1% | Reduced |
| Quotient Wealth Partners, LLC | 18,821 | $533.0K | 0.01% | +697+3.8% | Added |
| Buckingham Strategic Partners | 19,321 | $547.2K | 0.00% | +10,975+131.5% | Added |
| Banque Cantonale Vaudoise | 19,567 | $554.0K | 0.02% | +5,540+39.5% | Added |
| Bull Harbor Capital LLC | 19,692 | $557.7K | 0.11% | +19,692 | New |
| 111 Capital | 19,729 | $558.7K | 0.10% | +9,726+97.2% | Added |
| Frec Markets, Inc. | 19,877 | $562.9K | 0.05% | +19,877 | New |
| JBF Capital, Inc. | 20,000 | $566.4K | 0.07% | +20,000 | New |
| Institute for Wealth Management, LLC. | 20,026 | $567.1K | 0.05% | −1,115−5.3% | Reduced |
| Three Seasons Wealth, LLC | 20,828 | $589.8K | 0.05% | −5,816−21.8% | Reduced |
| Louisiana State Employees Retirement System | 20,900 | $591.9K | 0.01% | −28,300−57.5% | Reduced |
| New Mexico Educational Retirement Board | 21,100 | $598.0K | 0.02% | +1,500+7.7% | Added |
| Maryland State Retirement & Pension System | 21,232 | $601.3K | 0.01% | 00.0% | Unchanged |
| Atom Investors LP | 21,342 | $604.4K | 0.05% | −19,056−47.2% | Reduced |
| Candriam Luxembourg S.C.A. | 21,565 | $610.1K | 0.00% | +53+0.2% | Added |
| EntryPoint Capital, LLC | 21,757 | $616.2K | 0.15% | +1,969+10.0% | Added |
| Tokio Marine Asset Management Co Ltd | 21,912 | $620.5K | 0.02% | +2,142+10.8% | Added |
| MAI Capital Management | 21,915 | $620.6K | 0.00% | +17,942+451.6% | Added |
| Principal Securities, Inc. | 22,269 | $630.7K | 0.01% | −10,176−31.4% | Reduced |
| Hartford Investment Management Co | 22,424 | $635.0K | 0.02% | −1,859−7.7% | Reduced |
| Patten & Patten Inc | 22,522 | $637.8K | 0.03% | +13,775+157.5% | Added |
| Allspring Global Investments Holdings, LLC | 22,420 | $658.3K | 0.00% | +4,120+22.5% | Added |
| Board of the Pension Protection Fund | 23,500 | $665.5K | 0.63% | +23,500 | New |
| Fox Run Management, L.L.C. | 23,520 | $666.1K | 0.11% | +18,172+339.8% | Added |
| M&T Bank Corp | 23,555 | $666.2K | 0.00% | +2,854+13.8% | Added |
| Verdence Capital Advisors LLC | 23,556 | $667.1K | 0.04% | −20,368−46.4% | Reduced |
| Dynamic Technology Lab Private Ltd | 23,651 | $670.0K | 0.15% | +7,098+42.9% | Added |
| Spire Wealth Management | 23,713 | $671.8K | 0.02% | +23,210+4,614.3% | Added |
| Magnetar Financial LLC | 23,806 | $674.2K | 0.01% | +14,017+143.2% | Added |
| Krilogy Financial LLC | 24,016 | $680.1K | 0.02% | +24,016 | New |
| Crossmark Global Holdings, Inc. | 24,026 | $680.4K | 0.01% | +597+2.5% | Added |
| Park Avenue Securities LLC | 24,161 | $684.0K | 0.00% | +2,998+14.2% | Added |
| Oak Thistle LLC | 24,165 | $684.4K | 0.07% | −60,702−71.5% | Reduced |
| United Capital Financial Advisers, LLC | 24,222 | $686.0K | 0.00% | +13,659+129.3% | Added |
| Lido Advisors, LLC | 24,465 | $692.9K | 0.00% | +10,164+71.1% | Added |
| Allianz Asset Management GmbH | 24,475 | $693.1K | 0.00% | −3,526−12.6% | Reduced |
| Wealthfront Advisers LLC | 24,534 | $694.8K | 0.00% | +3,598+17.2% | Added |
| SlateStone Wealth, LLC | 24,538 | $695.0K | 0.05% | −6,227−20.2% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 24,564 | $695.7K | 0.00% | +24,564 | New |
| Stephens Inc | 24,619 | $697.2K | 0.01% | −18,029−42.3% | Reduced |
| Norinchukin Bank, The | 24,748 | $700.9K | 0.01% | −15,916−39.1% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 24,815 | $701.6K | 0.00% | −3,639−12.8% | Reduced |
| Badgley Phelps Wealth Managers, LLC | 24,944 | $706.4K | 0.01% | −12,150−32.8% | Reduced |