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 2025
Institutional positions in Costar Group, Inc. as of Jun 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
- 873
- +26 vs. Q1 2025
- Shares held
- 424.8M
- −3.49M (−0.8%) vs. Q1 2025
- Total value
- $34.2B
- +$258.5M (+0.8%) vs. Q1 2025
- New holders
- 101
- 355 more added
- Sold out
- 75
- 315 more reduced
11 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Truist Financial Corp | 117,688 | $9.46M | 0.01% | −14,167−10.7% | Reduced |
| Sone Capital Management, LLC | 115,121 | $9.26M | 0.85% | +115,121 | New |
| Vanderbilt University | 113,984 | $9.16M | 1.73% | +25,805+29.3% | Added |
| Visualize Group LP | 78,966 | $9.11M | 3.73% | −325,125−80.5% | Reduced |
| State of Tennessee, Treasury Department | 113,112 | $9.09M | 0.03% | +37,782+50.2% | Added |
| Equitable Trust Co | 111,880 | $9.00M | 0.45% | +13,423+13.6% | Added |
| MetLife Investment Management | 109,782 | $8.83M | 0.05% | +436+0.4% | Added |
| Millennium Management LLC | 107,317 | $8.63M | 0.01% | −218,111−67.0% | Reduced |
| Nissay Asset Management Corp | 107,012 | $8.60M | 0.05% | +5,765+5.7% | Added |
| Night Owl Capital Management, LLC | 106,893 | $8.59M | 0.99% | +3,052+2.9% | Added |
| Guggenheim Capital LLC | 106,513 | $8.56M | 0.07% | +23,658+28.6% | Added |
| Daiwa Securities Group Inc. | 106,213 | $8.54M | 0.03% | +13,619+14.7% | Added |
| Azimuth Capital Investment Management LLC | 104,274 | $8.38M | 0.31% | −2,516−2.4% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 103,470 | $8.32M | 0.04% | +7,095+7.4% | Added |
| Czech National Bank | 103,124 | $8.29M | 0.06% | +6,341+6.6% | Added |
| Prana Capital Management, LP | 98,426 | $7.91M | 0.29% | −22,138−18.4% | Reduced |
| Azzad Asset Management Inc | 98,077 | $7.89M | 0.84% | −11,900−10.8% | Reduced |
| KBC Group NV | 97,417 | $7.83M | 0.02% | +2,554+2.7% | Added |
| Driehaus Capital Management LLC | 96,183 | $7.73M | 0.06% | −51,810−35.0% | Reduced |
| The PNC Financial Services Group, Inc. | 95,893 | $7.71M | 0.00% | −6,987−6.8% | Reduced |
| Glenmede Investment Management, LP | 94,179 | $7.57M | 0.04% | +94,179 | New |
| MML Investors Services, LLC | 94,140 | $7.57M | 0.02% | +9,369+11.1% | Added |
| Prudential PLC | 93,458 | $7.51M | 0.05% | +86,854+1,315.2% | Added |
| Dash Acquisitions Inc. | 81,904 | $7.45M | 1.58% | +1,211+1.5% | Added |
| Thematics Asset Management | 90,824 | $7.30M | 0.33% | −3,250−3.5% | Reduced |
| Retirement Systems of Alabama | 90,530 | $7.28M | 0.03% | −300.0% | Reduced |
| Northwestern Mutual Wealth Management Co | 89,492 | $7.20M | 0.01% | −64−0.1% | Reduced |
| Hantz Financial Services, Inc. | 88,279 | $7.10M | 0.11% | +3,364+4.0% | Added |
| Primecap Management Co | 88,000 | $7.08M | 0.01% | +31,500+55.8% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 87,951 | $7.07M | 0.03% | +3,400+4.0% | Added |
| Quantinno Capital Management LP | 87,128 | $7.01M | 0.03% | +27,712+46.6% | Added |
| Wellington Management Group LLP | 86,856 | $6.98M | 0.00% | −6,578−7.0% | Reduced |
| Public Sector Pension Investment Board | 86,775 | $6.98M | 0.03% | −25,893−23.0% | Reduced |
| GF Fund Management Co. Ltd. | 84,024 | $6.76M | 0.14% | +5,023+6.4% | Added |
| Forsta Ap-Fonden | 83,600 | $6.72M | 0.04% | +5,400+6.9% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 83,060 | $6.68M | 0.02% | −16,543−16.6% | Reduced |
| Amalgamated Bank | 82,717 | $6.65M | 0.05% | +1,280+1.6% | Added |
| Robeco Institutional Asset Management B.V. | 82,584 | $6.64M | 0.01% | −11,371−12.1% | Reduced |
| STRS Ohio | 80,981 | $6.51M | 0.02% | +9,981+14.1% | Added |
| Narwhal Capital Management | 80,421 | $6.47M | 0.52% | −6,131−7.1% | Reduced |
| IFM Investors Pty Ltd | 80,152 | $6.44M | 0.06% | +4,476+5.9% | Added |
| Comerica Bank | 79,790 | $6.42M | 0.02% | −3,056−3.7% | Reduced |
| DnB Asset Management AS | 78,751 | $6.33M | 0.03% | −92,567−54.0% | Reduced |
| Generate Investment Management Ltd | 78,427 | $6.31M | 0.35% | +78,427 | New |
| Storebrand Asset Management AS | 78,042 | $6.27M | 0.02% | +3,205+4.3% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 77,370 | $6.22M | 0.06% | +11,000+16.6% | Added |
| Jefferies Financial Group Inc. | 76,485 | $6.15M | 0.10% | −33,564−30.5% | Reduced |
| Westfield Capital Management Co LP | 74,545 | $5.99M | 0.03% | −536−0.7% | Reduced |
| USS Investment Management Ltd | 73,670 | $5.92M | 0.04% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 73,296 | $5.89M | 0.08% | −2,561−3.4% | Reduced |
| Solidarilty Wealth, LLC | 72,625 | $5.84M | 1.37% | +3,418+4.9% | Added |
| American Century Companies Inc | 70,499 | $5.67M | 0.00% | +2,276+3.3% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 69,866 | $5.62M | 0.05% | −30,649−30.5% | Reduced |
| Blue Zone Wealth Advisors, LLC | 68,825 | $5.53M | 1.38% | +2,469+3.7% | Added |
| Utah Retirement Systems | 68,536 | $5.51M | 0.06% | −182−0.3% | Reduced |
| Shell Asset Management Co | 67,450 | $5.42M | 0.19% | −1,457−2.1% | Reduced |
| Taikang Asset Management (Hong Kong) Co Ltd | 66,766 | $5.37M | 0.69% | 00.0% | Unchanged |
| British Columbia Investment Management Corp | 66,367 | $5.34M | 0.03% | −14,239−17.7% | Reduced |
| Xponance, Inc. | 65,887 | $5.30M | 0.04% | +7,700+13.2% | Added |
| US Bancorp | 65,000 | $5.23M | 0.01% | −4,084−5.9% | Reduced |
| Platinum Investment Management Ltd | 65,000 | $5.23M | 0.35% | 00.0% | Unchanged |
| Pacer Advisors, Inc. | 64,902 | $5.22M | 0.01% | +23,011+54.9% | Added |
| Teacher Retirement System of Texas | 64,040 | $5.15M | 0.02% | +2,444+4.0% | Added |
| Police & Firemen's Retirement System of New Jersey | 63,241 | $5.08M | 0.05% | +2,804+4.6% | Added |
| Van Eck Associates Corp | 62,521 | $5.03M | 0.01% | −5,637−8.3% | Reduced |
| Hahn Capital Management LLC | 62,317 | $5.01M | 2.36% | −897−1.4% | Reduced |
| Abn Amro Investment Solutions | 62,080 | $4.99M | 0.10% | −1,042−1.7% | Reduced |
| Davenport & Co LLC | 61,426 | $4.94M | 0.03% | −5,256−7.9% | Reduced |
| Nisa Investment Advisors, LLC | 60,678 | $4.88M | 0.02% | +462+0.8% | Added |
| Cerity Partners LLC | 59,844 | $4.81M | 0.01% | +2,578+4.5% | Added |
| Regions Financial Corp | 59,804 | $4.81M | 0.03% | −4,018−6.3% | Reduced |
| Capstone Investment Advisors, LLC | 59,089 | $4.75M | 0.04% | +52,288+768.8% | Added |
| Tsai Capital Corp | 58,583 | $4.71M | 3.45% | −11,044−15.9% | Reduced |
| Lakehouse Capital Pty Ltd | 58,408 | $4.70M | 2.87% | 00.0% | Unchanged |
| OP Asset Management Ltd | 58,321 | $4.69M | 0.07% | −6,740−10.4% | Reduced |
| HB Wealth Management, LLC | 57,237 | $4.60M | 0.04% | −19,449−25.4% | Reduced |
| New York Life Investment Management LLC | 57,213 | $4.60M | 0.04% | +1,012+1.8% | Added |
| Motley Fool Asset Management LLC | 57,196 | $4.60M | 0.21% | −4,787−7.7% | Reduced |
| Atria Investments LLC | 56,792 | $4.57M | 0.05% | +5,885+11.6% | Added |
| Allianz SE | 56,052 | $4.51M | 0.11% | +30,540+119.7% | Added |
| Qsemble Capital Management, LP | 54,196 | $4.36M | 0.42% | +54,196 | New |
| Janney Montgomery Scott LLC | 53,902 | $4.33M | 0.01% | −7,129−11.7% | Reduced |
| Mutual of America Capital Management LLC | 53,819 | $4.33M | 0.05% | −628−1.2% | Reduced |
| Louisiana State Employees Retirement System | 53,200 | $4.28M | 0.08% | +500+0.9% | Added |
| Schroder Investment Management Group | 51,309 | $4.13M | 0.00% | −2,481−4.6% | Reduced |
| Sequoia Financial Advisors, LLC | 50,579 | $4.07M | 0.03% | +4,506+9.8% | Added |
| Elo Mutual Pension Insurance Co | 50,262 | $4.04M | 0.08% | +8,932+21.6% | Added |
| Yousif Capital Management, LLC | 49,852 | $4.01M | 0.04% | +130+0.3% | Added |
| Susquehanna International Group, LLP | 49,307 | $3.96M | 0.01% | −160,246−76.5% | Reduced |
| Shelton Capital Management | 48,763 | $3.92M | 0.09% | 00.0% | Unchanged |
| Mariner, LLC | 48,205 | $3.88M | 0.01% | −1,186−2.4% | Reduced |
| Ossiam | 47,672 | $3.83M | 0.04% | +38,956+446.9% | Added |
| State of Alaska, Department of Revenue | 47,406 | $3.81M | 0.04% | −1,955−4.0% | Reduced |
| Oppenheimer & Co Inc | 47,325 | $3.80M | 0.05% | +9,419+24.8% | Added |
| iA Global Asset Management Inc. | 46,726 | $3.76M | 0.06% | +1,581+3.5% | Added |
| Pathstone Holdings, LLC | 46,546 | $3.74M | 0.01% | +1,032+2.3% | Added |
| S.E.E.D. Planning Group LLC | 46,331 | $3.73M | 1.17% | −1,410−3.0% | Reduced |
| HighTower Advisors, LLC | 46,220 | $3.72M | 0.00% | −6,286−12.0% | Reduced |
| Woodline Partners LP | 45,635 | $3.67M | 0.02% | +10,031+28.2% | Added |
| La Banque Postale Asset Management SA | 45,118 | $3.63M | 0.05% | −94,348−67.6% | Reduced |