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 |
|---|---|---|---|---|---|
| Vanderbilt University | 125,839 | $10.6M | 1.76% | +11,855+10.4% | Added |
| Susquehanna International Group, LLP | 125,035 | $10.5M | 0.02% | +75,728+153.6% | Added |
| Arizona State Retirement System | 124,860 | $10.5M | 0.06% | +1,645+1.3% | Added |
| 2Xideas AG | 124,002 | $10.5M | 2.21% | −36,165−22.6% | Reduced |
| Envestnet Portfolio Solutions, Inc. | 122,408 | $10.3M | 0.04% | −14,348−10.5% | Reduced |
| State of Michigan Retirement System | 121,700 | $10.3M | 0.05% | −100−0.1% | Reduced |
| Man Group plc | 119,259 | $10.1M | 0.02% | +108,891+1,050.3% | Added |
| Kelly Lawrence W & Associates Inc | 119,142 | $10.1M | 2.44% | −2,490−2.0% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 118,260 | $9.98M | 0.24% | +118,260 | New |
| First Citizens Bank & Trust Co | 118,146 | $9.97M | 0.21% | −7,743−6.2% | Reduced |
| Quantinno Capital Management LP | 117,711 | $9.93M | 0.03% | +30,583+35.1% | Added |
| Jennison Associates LLC | 117,295 | $9.90M | 0.01% | −858−0.7% | Reduced |
| Jane Street Group, LLC | 115,631 | $9.76M | 0.01% | +115,631 | New |
| Daiwa Securities Group Inc. | 114,352 | $9.65M | 0.03% | +8,139+7.7% | Added |
| CI Private Wealth, LLC | 112,361 | $9.48M | 0.01% | −6,109−5.2% | Reduced |
| Guggenheim Capital LLC | 109,758 | $9.26M | 0.07% | +3,245+3.0% | Added |
| Nissay Asset Management Corp | 109,115 | $9.21M | 0.05% | +2,103+2.0% | Added |
| Equitable Trust Co | 109,028 | $9.20M | 0.42% | −2,852−2.5% | Reduced |
| Night Owl Capital Management, LLC | 107,711 | $9.09M | 0.99% | +818+0.8% | Added |
| Czech National Bank | 107,599 | $9.08M | 0.06% | +4,475+4.3% | Added |
| MetLife Investment Management | 107,461 | $9.07M | 0.04% | −2,321−2.1% | Reduced |
| Truist Financial Corp | 106,728 | $9.00M | 0.01% | −10,960−9.3% | Reduced |
| Azimuth Capital Investment Management LLC | 102,493 | $8.65M | 0.31% | −1,781−1.7% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 101,734 | $8.58M | 0.04% | −1,736−1.7% | Reduced |
| NFJ Investment Group, LLC | 101,225 | $8.54M | 0.30% | −18,718−15.6% | Reduced |
| Azzad Asset Management Inc | 98,485 | $8.31M | 0.82% | +408+0.4% | Added |
| Primecap Management Co | 98,000 | $8.27M | 0.01% | +10,000+11.4% | Added |
| KBC Group NV | 97,150 | $8.20M | 0.02% | −267−0.3% | Reduced |
| The PNC Financial Services Group, Inc. | 96,973 | $8.18M | 0.00% | +1,080+1.1% | Added |
| SG Capital Management LLC | 94,737 | $7.99M | 0.80% | −845,418−89.9% | Reduced |
| MML Investors Services, LLC | 91,952 | $7.76M | 0.02% | −2,188−2.3% | Reduced |
| Public Sector Pension Investment Board | 91,390 | $7.71M | 0.03% | +4,615+5.3% | Added |
| Retirement Systems of Alabama | 90,372 | $7.62M | 0.03% | −158−0.2% | Reduced |
| Hantz Financial Services, Inc. | 88,239 | $7.45M | 0.11% | −400.0% | Reduced |
| Glenmede Investment Management, LP | 87,077 | $7.35M | 0.04% | −7,102−7.5% | Reduced |
| Forsta Ap-Fonden | 85,200 | $7.19M | 0.04% | +1,600+1.9% | Added |
| Motley Fool Asset Management LLC | 84,034 | $7.09M | 0.29% | +26,838+46.9% | Added |
| GF Fund Management Co. Ltd. | 84,024 | $7.09M | 0.13% | 00.0% | Unchanged |
| Itau Unibanco Holding S.A. | 83,665 | $7.06M | 0.24% | +63,735+319.8% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 83,007 | $7.00M | 0.03% | −4,944−5.6% | Reduced |
| Storebrand Asset Management AS | 82,214 | $6.94M | 0.02% | +4,172+5.3% | Added |
| Amalgamated Bank | 81,855 | $6.91M | 0.05% | −862−1.0% | Reduced |
| Los Angeles Capital Management LLC | 81,714 | $6.89M | 0.02% | +81,714 | New |
| STRS Ohio | 80,985 | $6.83M | 0.03% | +40.0% | Added |
| IFM Investors Pty Ltd | 80,475 | $6.76M | 0.06% | +323+0.4% | Added |
| Thematics Asset Management | 79,915 | $6.74M | 0.31% | −10,909−12.0% | Reduced |
| DnB Asset Management AS | 78,830 | $6.65M | 0.02% | +79+0.1% | Added |
| Capstone Investment Advisors, LLC | 77,709 | $6.56M | 0.06% | +18,620+31.5% | Added |
| Qsemble Capital Management, LP | 76,982 | $6.49M | 0.64% | +22,786+42.0% | Added |
| Comerica Bank | 76,913 | $6.49M | 0.02% | −2,877−3.6% | Reduced |
| HB Wealth Management, LLC | 76,899 | $6.49M | 0.04% | +19,662+34.4% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 76,570 | $6.46M | 0.06% | −800−1.0% | Reduced |
| Robeco Institutional Asset Management B.V. | 74,668 | $6.30M | 0.01% | −7,916−9.6% | Reduced |
| USS Investment Management Ltd | 73,670 | $6.21M | 0.03% | 00.0% | Unchanged |
| Bank Julius Baer & Co. Ltd, Zurich | 72,910 | $6.15M | 0.02% | −10,150−12.2% | Reduced |
| Sterling Capital Management LLC | 72,064 | $6.08M | 0.09% | −1,232−1.7% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 70,363 | $5.94M | 0.05% | +497+0.7% | Added |
| Blue Zone Wealth Advisors, LLC | 70,330 | $5.93M | 1.18% | +1,505+2.2% | Added |
| Utah Retirement Systems | 68,915 | $5.81M | 0.06% | +379+0.6% | Added |
| Dash Acquisitions Inc. | 81,439 | $5.74M | 1.14% | −465−0.6% | Reduced |
| US Bancorp | 68,060 | $5.74M | 0.01% | +3,060+4.7% | Added |
| Jefferies Financial Group Inc. | 67,260 | $5.67M | 0.05% | −9,225−12.1% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 67,192 | $5.67M | 0.05% | +3,951+6.2% | Added |
| Wellington Management Group LLP | 66,414 | $5.60M | 0.00% | −20,442−23.5% | Reduced |
| Cerity Partners LLC | 64,470 | $5.44M | 0.01% | +4,626+7.7% | Added |
| Xponance, Inc. | 63,306 | $5.34M | 0.04% | −2,581−3.9% | Reduced |
| Pacer Advisors, Inc. | 63,301 | $5.34M | 0.01% | −1,601−2.5% | Reduced |
| O'Shaughnessy Asset Management, LLC | 62,718 | $5.29M | 0.03% | +19,077+43.7% | Added |
| Abn Amro Investment Solutions | 62,329 | $5.26M | 0.11% | +249+0.4% | Added |
| British Columbia Investment Management Corp | 60,633 | $5.12M | 0.03% | −5,734−8.6% | Reduced |
| Bank of Nova Scotia | 59,959 | $5.06M | 0.01% | +20,736+52.9% | Added |
| Hahn Capital Management LLC | 59,657 | $5.03M | 2.41% | −2,660−4.3% | Reduced |
| Elo Mutual Pension Insurance Co | 59,262 | $5.00M | 0.08% | +9,000+17.9% | Added |
| Regions Financial Corp | 58,993 | $4.98M | 0.03% | −811−1.4% | Reduced |
| Tsai Capital Corp | 58,899 | $4.97M | 3.47% | +316+0.5% | Added |
| Lakehouse Capital Pty Ltd | 58,408 | $4.93M | 3.01% | 00.0% | Unchanged |
| Davenport & Co LLC | 58,388 | $4.93M | 0.03% | −3,038−4.9% | Reduced |
| Van Eck Associates Corp | 57,861 | $4.88M | 0.00% | −4,660−7.5% | Reduced |
| New York Life Investment Management LLC | 57,348 | $4.84M | 0.04% | +135+0.2% | Added |
| Summit Wealth Group LLC | 110,820 | $4.75M | 0.65% | +110,820 | New |
| Solidarilty Wealth, LLC | 56,116 | $4.73M | 1.02% | −16,509−22.7% | Reduced |
| Allianz SE | 56,052 | $4.73M | 0.10% | 00.0% | Unchanged |
| Woodline Partners LP | 55,990 | $4.72M | 0.02% | +10,355+22.7% | Added |
| Mariner, LLC | 55,569 | $4.69M | 0.01% | +7,364+15.3% | Added |
| Teacher Retirement System of Texas | 55,256 | $4.66M | 0.02% | −8,784−13.7% | Reduced |
| Northwestern Mutual Wealth Management Co | 55,234 | $4.66M | 0.00% | −34,258−38.3% | Reduced |
| Atria Investments LLC | 55,021 | $4.64M | 0.05% | −1,771−3.1% | Reduced |
| Platinum Investment Management Ltd | 55,000 | $4.64M | 0.30% | −10,000−15.4% | Reduced |
| Archon Partners LLC | 54,000 | $4.56M | 0.48% | +54,000 | New |
| Mutual of America Capital Management LLC | 53,710 | $4.53M | 0.05% | −109−0.2% | Reduced |
| Louisiana State Employees Retirement System | 53,100 | $4.48M | 0.08% | −100−0.2% | Reduced |
| Baer Investment Advisory LLC | 52,517 | $4.43M | 5.54% | +3,148+6.4% | Added |
| LGT Fund Management Co Ltd. | 52,061 | $4.35M | 0.35% | +28,940+125.2% | Added |
| Sequoia Financial Advisors, LLC | 51,311 | $4.33M | 0.03% | +732+1.4% | Added |
| Ownership Capital B.V. | 50,817 | $4.29M | 2.41% | −423,882−89.3% | Reduced |
| Creative Planning | 50,424 | $4.25M | 0.00% | +9,652+23.7% | Added |
| Janney Montgomery Scott LLC | 50,081 | $4.22M | 0.01% | −3,821−7.1% | Reduced |
| OP Asset Management Ltd | 49,139 | $4.15M | 0.05% | −9,182−15.7% | Reduced |
| iA Global Asset Management Inc. | 49,049 | $4.14M | 0.06% | +2,323+5.0% | Added |
| Shelton Capital Management | 48,763 | $4.11M | 0.09% | 00.0% | Unchanged |