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, Q3 2023
Institutional positions in Costar Group, Inc. as of Sep 30, 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
- 690
- −19 vs. Q2 2023
- Shares held
- 392.2M
- −7.47M (−1.9%) vs. Q2 2023
- Total value
- $30.1B
- −$5.38B (−15.1%) vs. Q2 2023
- New holders
- 65
- 276 more added
- Sold out
- 84
- 252 more reduced
5 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: 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, Q3 2023
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 64,909,009 | $4.99B | 0.12% | −63,266−0.1% | Reduced |
| BlackRock Inc. | 33,175,491 | $2.55B | 0.07% | +1,051,260+3.3% | Added |
| Principal Financial Group Inc | 19,808,306 | $1.52B | 1.09% | +761,383+4.0% | Added |
| Bamco Inc | 19,196,502 | $1.48B | 4.29% | +91,399+0.5% | Added |
| State Street Corp | 14,944,507 | $1.15B | 0.06% | −367,051−2.4% | Reduced |
| Massachusetts Financial Services Co | 11,967,040 | $920.1M | 0.32% | +596,595+5.2% | Added |
| Baillie Gifford & Co | 11,638,598 | $894.9M | 0.82% | −295,446−2.5% | Reduced |
| Geode Capital Management, LLC | 10,271,503 | $788.3M | 0.09% | −627,559−5.8% | Reduced |
| Janus Henderson Group PLC | 8,983,807 | $690.8M | 0.45% | −2,087,735−18.9% | Reduced |
| Macquarie Group Ltd | 8,907,103 | $684.9M | 0.86% | +35,793+0.4% | Added |
| Sands Capital Management, LLC | 7,930,840 | $609.8M | 2.08% | −394,856−4.7% | Reduced |
| T. Rowe Price Investment Management, Inc. | 7,669,270 | $589.7M | 0.42% | −141,366−1.8% | Reduced |
| Akre Capital Management LLCSuperinvestorAkre Capital Management | 7,249,226 | $557.4M | 5.12% | +137,796+1.9% | Added |
| Artisan Partners Limited Partnership | 5,569,718 | $428.3M | 0.73% | +319,960+6.1% | Added |
| Bank of New York Mellon Corp | 5,528,098 | $425.1M | 0.09% | +218,094+4.1% | Added |
| Norges Bank | 4,525,799 | $348.0M | 0.07% | +227,757+5.3% | Added |
| Blair William & Co | 4,191,009 | $322.2M | 1.24% | +251,182+6.4% | Added |
| Bank of America Corp | 3,948,031 | $303.6M | 0.04% | +289,029+7.9% | Added |
| Northern Trust Corp | 3,835,126 | $294.9M | 0.06% | +92,169+2.5% | Added |
| Brown Advisory Inc | 3,763,862 | $289.4M | 0.48% | −520,383−12.1% | Reduced |
| Invesco Ltd. | 3,681,970 | $283.1M | 0.08% | +273,439+8.0% | Added |
| Wellington Management Group LLP | 3,580,549 | $275.3M | 0.06% | +662,592+22.7% | Added |
| Ameriprise Financial Inc | 3,088,593 | $237.5M | 0.08% | −208,811−6.3% | Reduced |
| Capital International Investors | 3,053,772 | $234.8M | 0.06% | −1,5190.0% | Reduced |
| Ownership Capital B.V. | 2,955,704 | $227.3M | 5.69% | −952,263−24.4% | Reduced |
| Farallon Capital Management, L.L.C. | 2,786,856 | $214.3M | 1.21% | +35,800+1.3% | Added |
| American Century Companies Inc | 2,628,360 | $202.1M | 0.16% | −307,020−10.5% | Reduced |
| Riverbridge Partners LLC | 2,512,806 | $193.2M | 2.64% | −54,549−2.1% | Reduced |
| Charles Schwab Investment Management Inc | 2,386,360 | $183.5M | 0.05% | +19,718+0.8% | Added |
| Morgan Stanley | 2,380,227 | $183.0M | 0.02% | +442,973+22.9% | Added |
| Goldman Sachs Group Inc | 2,371,677 | $182.4M | 0.05% | +655,299+38.2% | Added |
| Echo Street Capital Management LLC | 2,284,662 | $175.7M | 1.64% | +105,950+4.9% | Added |
| Federated Hermes, Inc. | 2,242,838 | $172.5M | 0.46% | +20,446+0.9% | Added |
| Legal & General Group Plc | 2,220,720 | $170.8M | 0.06% | −109,787−4.7% | Reduced |
| Mackenzie Financial Corp | 2,144,071 | $161.1M | 0.27% | −199,473−8.5% | Reduced |
| Bares Capital Management, Inc. | 2,065,105 | $158.8M | 6.78% | −27,522−1.3% | Reduced |
| DF Dent & Co Inc | 2,037,554 | $156.7M | 2.29% | −100,845−4.7% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,815,516 | $139.6M | 0.43% | +262,098+16.9% | Added |
| Envestnet Asset Management Inc | 1,775,814 | $136.5M | 0.06% | +352,169+24.7% | Added |
| Ensign Peak Advisors, Inc | 1,773,914 | $136.4M | 0.29% | +44,827+2.6% | Added |
| Harding Loevner LP | 1,759,746 | $135.3M | 0.89% | −250,813−12.5% | Reduced |
| Vulcan Value Partners, LLC | 1,723,070 | $132.4M | 2.02% | −939,638−35.3% | Reduced |
| Capital Research Global Investors | 1,617,927 | $124.4M | 0.03% | +273,474+20.3% | Added |
| William Blair Investment Management, LLC | 1,611,730 | $123.9M | 0.41% | −544,795−25.3% | Reduced |
| Price T Rowe Associates Inc | 1,588,978 | $122.2M | 0.02% | −1,254,986−44.1% | Reduced |
| RGM Capital, LLC | 1,552,632 | $119.4M | 5.45% | +151,876+10.8% | Added |
| FMR LLC | 1,405,414 | $108.1M | 0.01% | +638,241+83.2% | Added |
| UBS Asset Management Americas Inc | 1,392,205 | $107.0M | 0.05% | +154,431+12.5% | Added |
| Franklin Resources Inc | 1,371,402 | $105.4M | 0.05% | −1,270,274−48.1% | Reduced |
| Swiss National Bank | 1,314,100 | $101.0M | 0.08% | −155,100−10.6% | Reduced |
| Dimensional Fund Advisors LP | 1,257,088 | $96.7M | 0.03% | +36,309+3.0% | Added |
| CIBC Private Wealth Group, LLC | 1,232,258 | $94.7M | 0.22% | −1,355,190−52.4% | Reduced |
| Nuveen Asset Management, LLC | 1,215,583 | $93.5M | 0.03% | +70,106+6.1% | Added |
| SEI Investments Co | 1,173,549 | $90.2M | 0.16% | +25,879+2.3% | Added |
| Eagle Asset Management Inc | 1,067,021 | $82.0M | 0.49% | +1760.0% | Added |
| Victory Capital Management Inc | 1,050,864 | $80.8M | 0.09% | −45,106−4.1% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 1,029,927 | $79.2M | 0.23% | −25,042−2.4% | Reduced |
| Putnam Investments LLC | 1,020,273 | $78.4M | 0.12% | −172,422−14.5% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,018,973 | $78.3M | 0.06% | −2,342−0.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 950,810 | $73.1M | 0.13% | −6,501−0.7% | Reduced |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 947,000 | $72.8M | 4.00% | −121,000−11.3% | Reduced |
| JPMorgan Chase & Co | 932,553 | $71.7M | 0.01% | +243,694+35.4% | Added |
| Barclays PLC | 927,257 | $71.3M | 0.05% | +92,874+11.1% | Added |
| Pictet Asset Management Holding SA | 924,780 | $71.1M | 0.09% | +924,780 | New |
| Chicago Capital, LLC | 917,883 | $70.6M | 3.30% | −2,422−0.3% | Reduced |
| National Pension Service | 910,057 | $69.4M | 0.11% | +16,577+1.9% | Added |
| Baird Financial Group, Inc. | 863,462 | $66.4M | 0.18% | −275,745−24.2% | Reduced |
| Ci Investments Inc. | 862,635 | $66.3M | 0.37% | +4,645+0.5% | Added |
| TimesSquare Capital Management, LLC | 861,836 | $66.3M | 1.03% | −48,965−5.4% | Reduced |
| Rathbone Brothers plc | 838,274 | $64.5M | 0.47% | +600.0% | Added |
| American Capital Management Inc | 833,322 | $64.1M | 2.47% | −1990.0% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 820,648 | $63.1M | 0.16% | −9,597−1.2% | Reduced |
| Wells Fargo & Company | 784,206 | $60.3M | 0.02% | −68,651−8.0% | Reduced |
| Beck Mack & Oliver LLC | 782,905 | $60.2M | 1.58% | −1,706−0.2% | Reduced |
| Rhumbline Advisers | 782,629 | $60.2M | 0.07% | −3,626−0.5% | Reduced |
| Granahan Investment Management Inc | 765,134 | $58.8M | 2.10% | −26,334−3.3% | Reduced |
| Millennium Management LLC | 758,489 | $58.3M | 0.06% | +251,777+49.7% | Added |
| California Public Employees Retirement System | 756,375 | $58.2M | 0.05% | +7,456+1.0% | Added |
| STRS Ohio | 755,500 | $58.1M | 0.26% | +26,500+3.6% | Added |
| UBS Group AG | 754,147 | $58.0M | 0.03% | −34,472−4.4% | Reduced |
| Deutsche Bank AG | 739,725 | $56.9M | 0.04% | +200,183+37.1% | Added |
| Marshall Wace, LLP | 727,227 | $55.9M | 0.12% | −390,687−34.9% | Reduced |
| Royal Bank of Canada | 726,010 | $55.8M | 0.02% | −70,697−8.9% | Reduced |
| TD Asset Management Inc | 688,764 | $53.0M | 0.06% | +6,061+0.9% | Added |
| Westfield Capital Management Co LP | 667,521 | $51.3M | 0.35% | −195,950−22.7% | Reduced |
| Peregrine Capital Management LLC | 654,418 | $50.3M | 1.50% | −356−0.1% | Reduced |
| California State Teachers Retirement System | 636,153 | $48.9M | 0.08% | −23,451−3.6% | Reduced |
| Adage Capital Partners GP, L.L.C. | 631,000 | $48.5M | 0.11% | +214,000+51.3% | Added |
| Jennison Associates LLC | 615,525 | $47.3M | 0.04% | +122,060+24.7% | Added |
| Raymond James & Associates | 601,761 | $46.3M | 0.04% | −4,989−0.8% | Reduced |
| HSBC Holdings PLC | 569,799 | $43.8M | 0.05% | +121,099+27.0% | Added |
| Citigroup Inc | 567,281 | $43.6M | 0.06% | +91,864+19.3% | Added |
| Quantum Capital Management, LLC | 554,529 | $42.6M | 5.65% | −9,591−1.7% | Reduced |
| Stephens Investment Management Group LLC | 546,858 | $42.0M | 0.69% | +6,875+1.3% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 534,357 | $41.1M | 0.08% | −187,792−26.0% | Reduced |
| Clearbridge Investments, LLC | 531,159 | $40.8M | 0.04% | +2,785+0.5% | Added |
| New York State Common Retirement Fund | 505,932 | $38.9M | 0.06% | −55,809−9.9% | Reduced |
| Toronto Dominion Bank | 498,152 | $38.3M | 0.03% | −10,416−2.0% | Reduced |
| Alliancebernstein L.P. | 480,913 | $37.0M | 0.02% | −62,340−11.5% | Reduced |
| Ironvine Capital Partners, LLC | 474,007 | $36.4M | 4.68% | +1,558+0.3% | Added |