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, Q1 2023
Institutional positions in Costar Group, Inc. as of Mar 31, 2023. 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
- 692
- −4 vs. Q4 2022
- Shares held
- 392.4M
- −2.13M (−0.5%) vs. Q4 2022
- Total value
- $27.0B
- −$3.50B (−11.5%) vs. Q4 2022
- New holders
- 81
- 264 more added
- Sold out
- 85
- 263 more reduced
8 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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, Q1 2023
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 45,194,599 | $3.11B | 0.08% | +422,914+0.9% | Added |
| BlackRock Inc. | 31,917,467 | $2.20B | 0.07% | +286,782+0.9% | Added |
| Principal Financial Group Inc | 19,276,710 | $1.33B | 0.95% | −398,841−2.0% | Reduced |
| Bamco Inc | 18,970,081 | $1.31B | 3.92% | −140,122−0.7% | Reduced |
| State Street Corp | 15,020,694 | $1.03B | 0.06% | −91,296−0.6% | Reduced |
| Janus Henderson Group PLC | 13,081,306 | $900.6M | 0.59% | +82,995+0.6% | Added |
| Baillie Gifford & Co | 12,340,975 | $849.7M | 0.77% | −333,556−2.6% | Reduced |
| Massachusetts Financial Services Co | 11,542,549 | $794.7M | 0.27% | +413,120+3.7% | Added |
| Geode Capital Management, LLC | 9,814,024 | $674.4M | 0.09% | +500,775+5.4% | Added |
| Sands Capital Management, LLC | 9,600,576 | $661.0M | 2.18% | −352,733−3.5% | Reduced |
| Macquarie Group Ltd | 8,698,812 | $598.9M | 0.71% | +770,204+9.7% | Added |
| T. Rowe Price Investment Management, Inc. | 7,802,987 | $537.2M | 0.39% | −6,040−0.1% | Reduced |
| Franklin Resources Inc | 7,153,631 | $492.5M | 0.25% | −2,000,379−21.9% | Reduced |
| Akre Capital Management LLCSuperinvestorAkre Capital Management | 7,111,430 | $489.6M | 4.31% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 5,212,851 | $358.9M | 0.08% | +1,578,782+43.4% | Added |
| Artisan Partners Limited Partnership | 4,634,274 | $319.1M | 0.53% | +785,439+20.4% | Added |
| Bank of America Corp | 4,462,622 | $307.3M | 0.04% | +244,535+5.8% | Added |
| Norges Bank | 4,299,308 | $296.0M | 0.06% | +147,311+3.5% | Added |
| Ownership Capital B.V. | 4,025,204 | $277.1M | 4.88% | −13,872−0.3% | Reduced |
| Ameriprise Financial Inc | 3,873,418 | $266.7M | 0.09% | −732,842−15.9% | Reduced |
| Northern Trust Corp | 3,860,248 | $265.8M | 0.05% | −71,011−1.8% | Reduced |
| Blair William & Co | 3,755,033 | $258.5M | 1.03% | +44,732+1.2% | Added |
| Farallon Capital Management, L.L.C. | 3,411,185 | $234.9M | 1.42% | +1,131,000+49.6% | Added |
| American Century Companies Inc | 3,405,742 | $233.2M | 0.18% | −708,387−17.2% | Reduced |
| Vulcan Value Partners, LLC | 3,094,970 | $213.1M | 2.70% | +401,547+14.9% | Added |
| Capital International Investors | 3,056,097 | $210.4M | 0.05% | +1,519,195+98.8% | Added |
| Price T Rowe Associates Inc | 2,947,272 | $202.9M | 0.03% | −3,731,109−55.9% | Reduced |
| Brown Advisory Inc | 2,748,083 | $189.2M | 0.32% | +2,430,849+766.3% | Added |
| Echo Street Capital Management LLC | 2,699,639 | $185.9M | 1.67% | +332,104+14.0% | Added |
| Federated Hermes, Inc. | 2,598,155 | $178.9M | 0.45% | −141,158−5.2% | Reduced |
| Mackenzie Financial Corp | 2,552,078 | $175.7M | 0.27% | −2,816−0.1% | Reduced |
| William Blair Investment Management, LLC | 2,495,388 | $171.8M | 0.60% | −613,118−19.7% | Reduced |
| Riverbridge Partners LLC | 2,486,287 | $171.2M | 2.40% | −40,054−1.6% | Reduced |
| STRS Ohio | 2,460,000 | $169.4M | 0.26% | +1,470,398+148.6% | Added |
| Harding Loevner LP | 2,395,783 | $165.0M | 0.94% | −8,044−0.3% | Reduced |
| Findlay Park Partners LLP | 2,382,126 | $164.0M | 1.73% | −155,307−6.1% | Reduced |
| Charles Schwab Investment Management Inc | 2,351,503 | $161.9M | 0.05% | +25,158+1.1% | Added |
| Legal & General Group Plc | 2,344,651 | $161.4M | 0.06% | +119,622+5.4% | Added |
| CIBC Private Wealth Group, LLC | 2,330,290 | $160.4M | 0.18% | +1,124,024+93.2% | Added |
| Invesco Ltd. | 2,309,648 | $159.0M | 0.04% | −1,712,528−42.6% | Reduced |
| DF Dent & Co Inc | 2,205,007 | $151.8M | 2.14% | −48,171−2.1% | Reduced |
| Bares Capital Management, Inc. | 2,101,058 | $144.7M | 5.12% | −57,390−2.7% | Reduced |
| Morgan Stanley | 1,930,615 | $132.9M | 0.01% | −267,159−12.2% | Reduced |
| Wellington Management Group LLP | 1,904,922 | $131.2M | 0.03% | −1,399,523−42.4% | Reduced |
| Ensign Peak Advisors, Inc | 1,675,567 | $115.4M | 0.25% | +221,032+15.2% | Added |
| Marshall Wace, LLP | 1,617,180 | $111.3M | 0.27% | +177,004+12.3% | Added |
| Swiss National Bank | 1,614,000 | $111.1M | 0.08% | +4,800+0.3% | Added |
| Champlain Investment Partners, LLC | 1,581,125 | $108.9M | 0.69% | −229,990−12.7% | Reduced |
| FMR LLC | 1,448,286 | $99.7M | 0.00% | +239,868+19.8% | Added |
| Envestnet Asset Management Inc | 1,414,332 | $97.4M | 0.05% | +28,124+2.0% | Added |
| Goldman Sachs Group Inc | 1,379,497 | $95.0M | 0.03% | −143,982−9.5% | Reduced |
| RGM Capital, LLC | 1,376,254 | $94.8M | 4.52% | +230,206+20.1% | Added |
| Renaissance Technologies LLC | 1,374,480 | $94.6M | 0.13% | +1,374,480 | New |
| Capital Research Global Investors | 1,343,831 | $92.5M | 0.03% | +726,394+117.6% | Added |
| UBS Asset Management Americas Inc | 1,237,774 | $85.2M | 0.04% | +23,794+2.0% | Added |
| Putnam Investments LLC | 1,190,792 | $82.0M | 0.13% | −121,873−9.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,173,889 | $80.8M | 0.06% | −60,396−4.9% | Reduced |
| Dimensional Fund Advisors LP | 1,148,786 | $79.1M | 0.03% | +64,676+6.0% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,136,606 | $78.3M | 0.27% | +1,124,704+9,449.7% | Added |
| Nuveen Asset Management, LLC | 1,132,934 | $78.0M | 0.03% | +71,324+6.7% | Added |
| Victory Capital Management Inc | 1,100,980 | $75.8M | 0.09% | +12,568+1.2% | Added |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 1,100,800 | $75.8M | 4.37% | −5,000−0.5% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 1,079,333 | $74.3M | 0.22% | −21,262−1.9% | Reduced |
| SEI Investments Co | 952,485 | $65.6M | 0.12% | −127,023−11.8% | Reduced |
| Pictet Asset Management SA | 946,832 | $65.2M | 0.08% | +28,841+3.1% | Added |
| Baird Financial Group, Inc. | 926,185 | $63.8M | 0.16% | +2,577+0.3% | Added |
| Chicago Capital, LLC | 924,836 | $63.7M | 3.17% | +90,135+10.8% | Added |
| TimesSquare Capital Management, LLC | 919,186 | $63.3M | 0.92% | +88,550+10.7% | Added |
| Westfield Capital Management Co LP | 881,777 | $60.7M | 0.43% | +113,720+14.8% | Added |
| JPMorgan Chase & Co | 880,539 | $60.6M | 0.01% | +380,273+76.0% | Added |
| Ci Investments Inc. | 874,363 | $60.2M | 0.30% | −295,565−25.3% | Reduced |
| National Pension Service | 868,983 | $59.2M | 0.11% | +375,757+76.2% | Added |
| Amundi | 870,846 | $59.0M | 0.03% | +540,996+164.0% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 853,640 | $58.8M | 0.14% | −25,239−2.9% | Reduced |
| Wells Fargo & Company | 853,156 | $58.7M | 0.02% | +3,110+0.4% | Added |
| American Capital Management Inc | 841,480 | $57.9M | 2.04% | +29,334+3.6% | Added |
| Eagle Asset Management Inc | 839,449 | $57.8M | 0.34% | +839,449 | New |
| Rathbone Brothers plc | 826,883 | $56.9M | 0.58% | −2,117−0.3% | Reduced |
| Granahan Investment Management Inc | 794,943 | $54.7M | 1.67% | −571,919−41.8% | Reduced |
| Beck Mack & Oliver LLC | 781,507 | $53.8M | 1.55% | +6,416+0.8% | Added |
| California Public Employees Retirement System | 775,029 | $53.4M | 0.05% | −118,199−13.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 758,167 | $52.2M | 0.09% | +420,451+124.5% | Added |
| Rhumbline Advisers | 747,130 | $51.4M | 0.06% | +14,164+1.9% | Added |
| D. E. Shaw & Co., Inc. | 725,804 | $50.0M | 0.08% | −166,763−18.7% | Reduced |
| APG Asset Management N.V. | 764,657 | $48.5M | 0.10% | +57,858+8.2% | Added |
| TD Asset Management Inc | 696,042 | $47.9M | 0.06% | −27,648−3.8% | Reduced |
| California State Teachers Retirement System | 675,127 | $46.5M | 0.07% | +6,167+0.9% | Added |
| Peregrine Capital Management LLC | 659,500 | $45.4M | 1.31% | +3,904+0.6% | Added |
| Royal Bank of Canada | 640,316 | $44.1M | 0.01% | +322,278+101.3% | Added |
| Raymond James & Associates | 629,312 | $43.3M | 0.04% | −25,405−3.9% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 608,103 | $41.9M | 0.10% | +62,312+11.4% | Added |
| Korea Investment CORP | 604,810 | $41.6M | 0.12% | +266,310+78.7% | Added |
| Russell Investments Group, Ltd. | 602,255 | $41.4M | 0.08% | −153,574−20.3% | Reduced |
| Quantum Capital Management, LLC | 587,048 | $40.4M | 5.22% | +96,672+19.7% | Added |
| Jennison Associates LLC | 586,416 | $40.4M | 0.04% | +1,780+0.3% | Added |
| Deutsche Bank AG | 565,706 | $38.9M | 0.02% | +33,956+6.4% | Added |
| Select Equity Group, L.P. | 565,328 | $38.9M | 0.15% | +386,078+215.4% | Added |
| New York State Common Retirement Fund | 558,412 | $38.4M | 0.05% | −11,126−2.0% | Reduced |
| Stephens Investment Management Group LLC | 546,671 | $37.6M | 0.63% | −369−0.1% | Reduced |
| Citigroup Inc | 537,170 | $37.0M | 0.05% | +12,982+2.5% | Added |