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 |
|---|---|---|---|---|---|
| Exchange Traded Concepts, LLC | 45,880 | $3.87M | 0.04% | +8,981+24.3% | Added |
| Taikang Asset Management (Hong Kong) Co Ltd | 45,969 | $3.88M | 0.43% | −20,797−31.1% | Reduced |
| Yousif Capital Management, LLC | 47,136 | $3.98M | 0.04% | −2,716−5.4% | Reduced |
| Natixis | 47,943 | $4.04M | 0.02% | +30,298+171.7% | Added |
| Oregon Public Employees Retirement Fund | 48,424 | $4.09M | 0.05% | +11,969+32.8% | Added |
| Shelton Capital Management | 48,763 | $4.11M | 0.09% | 00.0% | Unchanged |
| iA Global Asset Management Inc. | 49,049 | $4.14M | 0.06% | +2,323+5.0% | Added |
| OP Asset Management Ltd | 49,139 | $4.15M | 0.05% | −9,182−15.7% | Reduced |
| Janney Montgomery Scott LLC | 50,081 | $4.22M | 0.01% | −3,821−7.1% | Reduced |
| Creative Planning | 50,424 | $4.25M | 0.00% | +9,652+23.7% | Added |
| Ownership Capital B.V. | 50,817 | $4.29M | 2.41% | −423,882−89.3% | Reduced |
| Sequoia Financial Advisors, LLC | 51,311 | $4.33M | 0.03% | +732+1.4% | Added |
| LGT Fund Management Co Ltd. | 52,061 | $4.35M | 0.35% | +28,940+125.2% | Added |
| Baer Investment Advisory LLC | 52,517 | $4.43M | 5.54% | +3,148+6.4% | Added |
| Louisiana State Employees Retirement System | 53,100 | $4.48M | 0.08% | −100−0.2% | Reduced |
| Mutual of America Capital Management LLC | 53,710 | $4.53M | 0.05% | −109−0.2% | Reduced |
| Archon Partners LLC | 54,000 | $4.56M | 0.48% | +54,000 | New |
| Platinum Investment Management Ltd | 55,000 | $4.64M | 0.30% | −10,000−15.4% | Reduced |
| Atria Investments LLC | 55,021 | $4.64M | 0.05% | −1,771−3.1% | Reduced |
| Northwestern Mutual Wealth Management Co | 55,234 | $4.66M | 0.00% | −34,258−38.3% | Reduced |
| Teacher Retirement System of Texas | 55,256 | $4.66M | 0.02% | −8,784−13.7% | Reduced |
| Mariner, LLC | 55,569 | $4.69M | 0.01% | +7,364+15.3% | Added |
| Woodline Partners LP | 55,990 | $4.72M | 0.02% | +10,355+22.7% | Added |
| Allianz SE | 56,052 | $4.73M | 0.10% | 00.0% | Unchanged |
| Solidarilty Wealth, LLC | 56,116 | $4.73M | 1.02% | −16,509−22.7% | Reduced |
| Summit Wealth Group LLC | 110,820 | $4.75M | 0.65% | +110,820 | New |
| New York Life Investment Management LLC | 57,348 | $4.84M | 0.04% | +135+0.2% | Added |
| Van Eck Associates Corp | 57,861 | $4.88M | 0.00% | −4,660−7.5% | Reduced |
| Davenport & Co LLC | 58,388 | $4.93M | 0.03% | −3,038−4.9% | Reduced |
| Lakehouse Capital Pty Ltd | 58,408 | $4.93M | 3.01% | 00.0% | Unchanged |
| Tsai Capital Corp | 58,899 | $4.97M | 3.47% | +316+0.5% | Added |
| Regions Financial Corp | 58,993 | $4.98M | 0.03% | −811−1.4% | Reduced |
| Elo Mutual Pension Insurance Co | 59,262 | $5.00M | 0.08% | +9,000+17.9% | Added |
| Hahn Capital Management LLC | 59,657 | $5.03M | 2.41% | −2,660−4.3% | Reduced |
| Bank of Nova Scotia | 59,959 | $5.06M | 0.01% | +20,736+52.9% | Added |
| British Columbia Investment Management Corp | 60,633 | $5.12M | 0.03% | −5,734−8.6% | Reduced |
| Abn Amro Investment Solutions | 62,329 | $5.26M | 0.11% | +249+0.4% | Added |
| O'Shaughnessy Asset Management, LLC | 62,718 | $5.29M | 0.03% | +19,077+43.7% | Added |
| Pacer Advisors, Inc. | 63,301 | $5.34M | 0.01% | −1,601−2.5% | Reduced |
| Xponance, Inc. | 63,306 | $5.34M | 0.04% | −2,581−3.9% | Reduced |
| Cerity Partners LLC | 64,470 | $5.44M | 0.01% | +4,626+7.7% | Added |
| Wellington Management Group LLP | 66,414 | $5.60M | 0.00% | −20,442−23.5% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 67,192 | $5.67M | 0.05% | +3,951+6.2% | Added |
| Jefferies Financial Group Inc. | 67,260 | $5.67M | 0.05% | −9,225−12.1% | Reduced |
| US Bancorp | 68,060 | $5.74M | 0.01% | +3,060+4.7% | Added |
| Dash Acquisitions Inc. | 81,439 | $5.74M | 1.14% | −465−0.6% | Reduced |
| Utah Retirement Systems | 68,915 | $5.81M | 0.06% | +379+0.6% | Added |
| Blue Zone Wealth Advisors, LLC | 70,330 | $5.93M | 1.18% | +1,505+2.2% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 70,363 | $5.94M | 0.05% | +497+0.7% | Added |
| Sterling Capital Management LLC | 72,064 | $6.08M | 0.09% | −1,232−1.7% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 72,910 | $6.15M | 0.02% | −10,150−12.2% | Reduced |
| USS Investment Management Ltd | 73,670 | $6.21M | 0.03% | 00.0% | Unchanged |
| Robeco Institutional Asset Management B.V. | 74,668 | $6.30M | 0.01% | −7,916−9.6% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 76,570 | $6.46M | 0.06% | −800−1.0% | Reduced |
| HB Wealth Management, LLC | 76,899 | $6.49M | 0.04% | +19,662+34.4% | Added |
| Comerica Bank | 76,913 | $6.49M | 0.02% | −2,877−3.6% | Reduced |
| Qsemble Capital Management, LP | 76,982 | $6.49M | 0.64% | +22,786+42.0% | Added |
| Capstone Investment Advisors, LLC | 77,709 | $6.56M | 0.06% | +18,620+31.5% | Added |
| DnB Asset Management AS | 78,830 | $6.65M | 0.02% | +79+0.1% | Added |
| Thematics Asset Management | 79,915 | $6.74M | 0.31% | −10,909−12.0% | Reduced |
| IFM Investors Pty Ltd | 80,475 | $6.76M | 0.06% | +323+0.4% | Added |
| STRS Ohio | 80,985 | $6.83M | 0.03% | +40.0% | Added |
| Los Angeles Capital Management LLC | 81,714 | $6.89M | 0.02% | +81,714 | New |
| Amalgamated Bank | 81,855 | $6.91M | 0.05% | −862−1.0% | Reduced |
| Storebrand Asset Management AS | 82,214 | $6.94M | 0.02% | +4,172+5.3% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 83,007 | $7.00M | 0.03% | −4,944−5.6% | Reduced |
| Itau Unibanco Holding S.A. | 83,665 | $7.06M | 0.24% | +63,735+319.8% | Added |
| GF Fund Management Co. Ltd. | 84,024 | $7.09M | 0.13% | 00.0% | Unchanged |
| Motley Fool Asset Management LLC | 84,034 | $7.09M | 0.29% | +26,838+46.9% | Added |
| Forsta Ap-Fonden | 85,200 | $7.19M | 0.04% | +1,600+1.9% | Added |
| Glenmede Investment Management, LP | 87,077 | $7.35M | 0.04% | −7,102−7.5% | Reduced |
| Hantz Financial Services, Inc. | 88,239 | $7.45M | 0.11% | −400.0% | Reduced |
| Retirement Systems of Alabama | 90,372 | $7.62M | 0.03% | −158−0.2% | Reduced |
| Public Sector Pension Investment Board | 91,390 | $7.71M | 0.03% | +4,615+5.3% | Added |
| MML Investors Services, LLC | 91,952 | $7.76M | 0.02% | −2,188−2.3% | Reduced |
| SG Capital Management LLC | 94,737 | $7.99M | 0.80% | −845,418−89.9% | Reduced |
| The PNC Financial Services Group, Inc. | 96,973 | $8.18M | 0.00% | +1,080+1.1% | Added |
| KBC Group NV | 97,150 | $8.20M | 0.02% | −267−0.3% | Reduced |
| Primecap Management Co | 98,000 | $8.27M | 0.01% | +10,000+11.4% | Added |
| Azzad Asset Management Inc | 98,485 | $8.31M | 0.82% | +408+0.4% | Added |
| NFJ Investment Group, LLC | 101,225 | $8.54M | 0.30% | −18,718−15.6% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 101,734 | $8.58M | 0.04% | −1,736−1.7% | Reduced |
| Azimuth Capital Investment Management LLC | 102,493 | $8.65M | 0.31% | −1,781−1.7% | Reduced |
| Truist Financial Corp | 106,728 | $9.00M | 0.01% | −10,960−9.3% | Reduced |
| MetLife Investment Management | 107,461 | $9.07M | 0.04% | −2,321−2.1% | Reduced |
| Czech National Bank | 107,599 | $9.08M | 0.06% | +4,475+4.3% | Added |
| Night Owl Capital Management, LLC | 107,711 | $9.09M | 0.99% | +818+0.8% | Added |
| Equitable Trust Co | 109,028 | $9.20M | 0.42% | −2,852−2.5% | Reduced |
| Nissay Asset Management Corp | 109,115 | $9.21M | 0.05% | +2,103+2.0% | Added |
| Guggenheim Capital LLC | 109,758 | $9.26M | 0.07% | +3,245+3.0% | Added |
| CI Private Wealth, LLC | 112,361 | $9.48M | 0.01% | −6,109−5.2% | Reduced |
| Daiwa Securities Group Inc. | 114,352 | $9.65M | 0.03% | +8,139+7.7% | Added |
| Jane Street Group, LLC | 115,631 | $9.76M | 0.01% | +115,631 | New |
| Jennison Associates LLC | 117,295 | $9.90M | 0.01% | −858−0.7% | Reduced |
| Quantinno Capital Management LP | 117,711 | $9.93M | 0.03% | +30,583+35.1% | Added |
| First Citizens Bank & Trust Co | 118,146 | $9.97M | 0.21% | −7,743−6.2% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 118,260 | $9.98M | 0.24% | +118,260 | New |
| Kelly Lawrence W & Associates Inc | 119,142 | $10.1M | 2.44% | −2,490−2.0% | Reduced |
| Man Group plc | 119,259 | $10.1M | 0.02% | +108,891+1,050.3% | Added |
| State of Michigan Retirement System | 121,700 | $10.3M | 0.05% | −100−0.1% | Reduced |