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 $12.3B in total; superinvestors Akre Capital Management and Weitz Investment Management hold it.
13F holders, Q2 2021
Institutional positions in Costar Group, Inc. as of Jun 30, 2021. 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
- 607
- +19 vs. Q1 2021
- Shares held
- 375.4M
- +338.1M (+904.6%) vs. Q1 2021
- Total value
- $31.1B
- +$379.5M (+1.2%) vs. Q1 2021
- New holders
- 86
- 513 more added
- Sold out
- 67
- 5 more reduced
5 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: 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 | $12.3B |
| Q1 2026 | 797 | $16.8B |
| Q4 2025 | 847 | $28.6B |
| Q3 2025 | 905 | $35.1B |
| Q2 2025 | 873 | $34.3B |
| Q1 2025 | 858 | $34.0B |
| Q4 2024 | 805 | $29.3B |
| Q3 2024 | 773 | $30.2B |
| Q2 2024 | 767 | $29.4B |
| Q1 2024 | 767 | $40.1B |
| Q4 2023 | 737 | $34.7B |
| Q3 2023 | 690 | $30.1B |
| Q2 2023 | 714 | $35.6B |
| Q1 2023 | 692 | $27.0B |
| Q4 2022 | 704 | $30.5B |
| Q3 2022 | 634 | $29.1B |
| Q2 2022 | 591 | $23.2B |
| Q1 2022 | 589 | $25.2B |
| Q4 2021 | 633 | $30.2B |
| Q3 2021 | 594 | $32.3B |
| Q2 2021 | 607 | $31.1B |
| Q1 2021 | 593 | $31.2B |
Institutions, Q2 2021
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Price T Rowe Associates Inc | 43,681,083 | $3.62B | 0.34% | +39,443,646+930.8% | Added |
| Vanguard Group Inc | 34,639,833 | $2.87B | 0.07% | +31,163,246+896.4% | Added |
| BlackRock Inc. | 25,891,949 | $2.14B | 0.06% | +22,839,557+748.3% | Added |
| Bamco Inc | 18,793,260 | $1.56B | 3.56% | +16,853,001+868.6% | Added |
| Principal Financial Group Inc | 15,169,117 | $1.26B | 0.81% | +14,214,869+1,489.6% | Added |
| Baillie Gifford & Co | 12,000,170 | $993.9M | 0.48% | +10,852,735+945.8% | Added |
| Janus Henderson Group PLC | 11,717,971 | $970.5M | 0.42% | +10,214,701+679.5% | Added |
| Franklin Resources Inc | 10,733,810 | $889.0M | 0.34% | +9,684,933+923.4% | Added |
| Akre Capital Management LLCSuperinvestorAkre Capital Management | 9,767,600 | $809.0M | 4.98% | +8,790,840+900.0% | Added |
| Sands Capital Management, LLC | 9,023,512 | $747.3M | 1.27% | +8,113,177+891.2% | Added |
| Massachusetts Financial Services Co | 8,554,540 | $708.5M | 0.21% | +7,686,330+885.3% | Added |
| State Street Corp | 8,373,033 | $693.5M | 0.04% | +7,602,653+986.9% | Added |
| Vulcan Value Partners, LLC | 7,108,452 | $588.7M | 3.19% | +6,444,877+971.2% | Added |
| Third Point LLCSuperinvestorThird Point | 5,671,000 | $469.7M | 2.75% | +5,121,000+931.1% | Added |
| Geode Capital Management, LLC | 4,939,735 | $408.5M | 0.06% | +4,464,515+939.5% | Added |
| Wellington Management Group LLP | 4,826,473 | $399.7M | 0.07% | +4,337,416+886.9% | Added |
| Veritas Asset Management LLP | 4,424,810 | $366.5M | 2.05% | +3,942,029+816.5% | Added |
| Alkeon Capital Management LLC | 3,839,840 | $318.0M | 1.13% | +3,454,742+897.1% | Added |
| Norges Bank | 3,823,400 | $316.7M | 0.07% | +3,451,795+928.9% | Added |
| Macquarie Group Ltd | 3,775,184 | $312.7M | 0.26% | +3,774,160+368,570.3% | Added |
| Ownership Capital B.V. | 3,525,580 | $292.0M | 3.40% | +3,181,585+924.9% | Added |
| Bank of America Corp | 3,373,554 | $279.4M | 0.03% | +3,076,285+1,034.8% | Added |
| Findlay Park Partners LLP | 3,347,610 | $277.2M | 1.89% | +2,990,245+836.7% | Added |
| Winslow Capital Management, LLC | 3,232,335 | $267.7M | 1.04% | +2,985,308+1,208.5% | Added |
| Bares Capital Management, Inc. | 3,186,570 | $263.9M | 4.69% | +2,851,812+851.9% | Added |
| Northern Trust Corp | 2,810,345 | $232.8M | 0.04% | +2,519,492+866.2% | Added |
| Ameriprise Financial Inc | 2,788,235 | $230.9M | 0.07% | +2,566,989+1,160.2% | Added |
| Federated Hermes, Inc. | 2,679,203 | $221.9M | 0.41% | +2,404,794+876.4% | Added |
| Blair William & Co | 2,675,366 | $221.6M | 0.77% | +2,412,720+918.6% | Added |
| Riverbridge Partners LLC | 2,519,018 | $208.6M | 2.12% | +2,277,312+942.2% | Added |
| Putnam Investments LLC | 2,485,386 | $205.8M | 0.32% | +2,261,665+1,010.9% | Added |
| DF Dent & Co Inc | 2,297,160 | $190.3M | 2.02% | +2,069,389+908.5% | Added |
| Fred Alger Management, LLC | 2,230,211 | $184.7M | 0.44% | +1,930,128+643.2% | Added |
| Legal & General Group Plc | 2,209,790 | $183.0M | 0.06% | +1,968,733+816.7% | Added |
| Voya Investment Management LLC | 2,062,846 | $170.8M | 0.33% | +1,851,697+877.0% | Added |
| Bank of New York Mellon Corp | 1,926,303 | $159.5M | 0.03% | +1,733,358+898.4% | Added |
| FMR LLC | 1,732,442 | $143.5M | 0.01% | +1,331,664+332.3% | Added |
| Ensign Peak Advisors, Inc | 1,728,990 | $143.2M | 0.29% | +1,544,759+838.5% | Added |
| Millennium Management LLC | 1,715,386 | $142.1M | 0.18% | +1,520,982+782.4% | Added |
| Wells Fargo & Company | 1,648,829 | $136.6M | 0.03% | +1,354,709+460.6% | Added |
| Swiss National Bank | 1,606,090 | $133.0M | 0.08% | +1,454,490+959.4% | Added |
| Goldman Sachs Group Inc | 1,588,254 | $131.5M | 0.04% | +1,473,905+1,289.0% | Added |
| Invesco Ltd. | 1,566,663 | $129.8M | 0.03% | +1,309,361+508.9% | Added |
| Victory Capital Management Inc | 1,552,642 | $128.6M | 0.12% | +1,400,240+918.8% | Added |
| Nuveen Asset Management, LLC | 1,520,788 | $126.0M | 0.04% | +1,339,691+739.8% | Added |
| Echo Street Capital Management LLC | 1,462,062 | $121.1M | 0.93% | +1,336,214+1,061.8% | Added |
| Granahan Investment Management Inc | 1,356,430 | $112.3M | 2.09% | +1,217,762+878.2% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,332,428 | $110.4M | 0.07% | +1,162,324+683.3% | Added |
| JPMorgan Chase & Co | 1,309,200 | $108.4M | 0.01% | +1,181,166+922.5% | Added |
| APG Asset Management N.V. | 1,542,970 | $107.8M | 0.18% | +1,383,519+867.7% | Added |
| TD Asset Management Inc | 1,211,612 | $107.7M | 0.11% | +1,098,127+967.6% | Added |
| Morgan Stanley | 1,239,358 | $102.6M | 0.01% | +1,191,196+2,473.3% | Added |
| Charles Schwab Investment Management Inc | 1,234,710 | $102.3M | 0.03% | +1,114,638+928.3% | Added |
| UBS Asset Management Americas Inc | 1,227,801 | $101.7M | 0.04% | +1,088,587+782.0% | Added |
| Kayne Anderson Rudnick Investment Management LLC | 1,189,967 | $98.6M | 0.24% | +1,070,687+897.6% | Added |
| Korea Investment CORP | 1,176,970 | $97.5M | 0.28% | +1,050,941+833.9% | Added |
| Amundi | 1,149,394 | $95.2M | 0.07% | +1,149,394 | New |
| CIBC Private Wealth Group, LLC | 1,104,437 | $91.5M | 0.21% | +956,184+645.0% | Added |
| Pelham Capital Ltd. | 1,100,340 | $91.1M | 5.39% | +891,804+427.6% | Added |
| Teacher Retirement System of Texas | 1,064,850 | $88.2M | 0.49% | +959,136+907.3% | Added |
| TimesSquare Capital Management, LLC | 1,044,300 | $86.5M | 0.71% | +943,185+932.8% | Added |
| Envestnet Asset Management Inc | 1,034,312 | $85.7M | 0.05% | +942,787+1,030.1% | Added |
| Jennison Associates LLC | 1,003,442 | $83.1M | 0.06% | +969,695+2,873.4% | Added |
| Champlain Investment Partners, LLC | 994,600 | $82.4M | 0.39% | +994,600 | New |
| American Century Companies Inc | 922,369 | $76.4M | 0.05% | +845,205+1,095.3% | Added |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 899,500 | $74.5M | 3.14% | +816,050+977.9% | Added |
| William Blair Investment Management, LLC | 885,896 | $73.4M | 0.23% | +795,089+875.6% | Added |
| Baird Financial Group, Inc. | 869,019 | $72.0M | 0.19% | +790,158+1,002.0% | Added |
| Dimensional Fund Advisors LP | 842,757 | $69.8M | 0.02% | +760,701+927.1% | Added |
| Rathbone Brothers plc | 829,090 | $68.7M | 0.76% | +746,190+900.1% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 823,520 | $68.2M | 0.14% | +735,695+837.7% | Added |
| California Public Employees Retirement System | 799,280 | $66.2M | 0.05% | +717,806+881.0% | Added |
| Senator Investment Group LP | 750,000 | $62.1M | 1.18% | +630,000+525.0% | Added |
| Parametric Portfolio Associates LLC | 741,751 | $61.4M | 0.03% | +669,192+922.3% | Added |
| Holocene Advisors, LP | 736,187 | $61.0M | 0.37% | +736,187 | New |
| American Capital Management Inc | 711,964 | $59.0M | 1.65% | +641,173+905.7% | Added |
| California State Teachers Retirement System | 703,927 | $58.3M | 0.07% | +630,273+855.7% | Added |
| Citadel Advisors LLC | 657,599 | $54.5M | 0.06% | +639,339+3,501.3% | Added |
| Wildcat Capital Management, LLC | 653,820 | $54.1M | 6.14% | +583,833+834.2% | Added |
| Ci Investments Inc. | 628,095 | $52.0M | 0.19% | +581,605+1,251.0% | Added |
| STRS Ohio | 611,030 | $50.6M | 0.18% | +548,986+884.8% | Added |
| Peregrine Capital Management LLC | 589,960 | $48.9M | 0.88% | +533,668+948.0% | Added |
| SEI Investments Co | 580,895 | $48.3M | 0.11% | +530,145+1,044.6% | Added |
| Citigroup Inc | 577,582 | $47.8M | 0.04% | +526,432+1,029.2% | Added |
| Geneva Capital Management LLC | 573,588 | $47.5M | 0.77% | +514,391+868.9% | Added |
| Barclays PLC | 563,397 | $46.7M | 0.04% | +532,256+1,709.2% | Added |
| National Pension Service | 557,450 | $46.2M | 0.09% | +501,707+900.0% | Added |
| New York State Common Retirement Fund | 551,280 | $45.7M | 0.05% | +491,789+826.7% | Added |
| State Board of Administration of Florida Retirement System | 524,430 | $43.4M | 0.08% | +469,427+853.5% | Added |
| Balyasny Asset Management LLC | 520,261 | $43.1M | 0.24% | +520,261 | New |
| Segall Bryant & Hamill, LLC | 509,541 | $42.2M | 0.41% | +345,995+211.6% | Added |
| Raymond James & Associates | 504,772 | $41.8M | 0.04% | +473,265+1,502.1% | Added |
| Capital World Investors | 500,000 | $41.4M | 0.01% | +450,000+900.0% | Added |
| Stephens Investment Management Group LLC | 481,126 | $39.8M | 0.55% | +432,117+881.7% | Added |
| Chicago Capital, LLC | 472,388 | $39.1M | 1.53% | +424,925+895.3% | Added |
| Alberta Investment Management Corp | 470,000 | $38.9M | 0.32% | +452,400+2,570.5% | Added |
| Truist Financial Corp | 460,284 | $38.1M | 0.06% | +417,107+966.0% | Added |
| Voloridge Investment Management, LLC | 456,754 | $37.8M | 0.26% | +401,933+733.2% | Added |
| Neuberger Berman Group LLC | 437,800 | $36.2M | 0.03% | +397,521+986.9% | Added |
| Kornitzer Capital Management Inc | 426,290 | $35.3M | 0.53% | +383,661+900.0% | Added |