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 2025
Institutional positions in Costar Group, Inc. as of Mar 31, 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
- 858
- +66 vs. Q4 2024
- Shares held
- 430.0M
- +21.2M (+5.2%) vs. Q4 2024
- Total value
- $34.0B
- +$4.80B (+16.4%) vs. Q4 2024
- New holders
- 141
- 377 more added
- Sold out
- 75
- 264 more reduced
13 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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 2025
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 68,426,711 | $5.42B | 0.10% | +2,709,320+4.1% | Added |
| BlackRock, Inc. | 37,457,618 | $2.97B | 0.06% | −658,076−1.7% | Reduced |
| Bamco Inc | 19,032,522 | $1.51B | 4.43% | −171,042−0.9% | Reduced |
| Principal Financial Group Inc | 19,007,873 | $1.51B | 0.85% | −178,402−0.9% | Reduced |
| State Street Corp | 17,574,429 | $1.39B | 0.06% | +542,553+3.2% | Added |
| Capital International Investors | 14,669,837 | $1.16B | 0.23% | +637,474+4.5% | Added |
| Geode Capital Management, LLC | 12,067,436 | $953.4M | 0.07% | +591,681+5.2% | Added |
| Akre Capital Management LLCSuperinvestorAkre Capital Management | 9,313,592 | $737.9M | 7.09% | −2880.0% | Reduced |
| Baillie Gifford & Co | 8,436,199 | $668.4M | 0.58% | +524,601+6.6% | Added |
| Morgan Stanley | 7,910,143 | $626.7M | 0.04% | +3,569,880+82.3% | Added |
| Mizuho Markets Americas LLC | 7,401,273 | $586.4M | 12.73% | +7,401,273 | New |
| Massachusetts Financial Services Co | 6,619,472 | $524.5M | 0.17% | −474,271−6.7% | Reduced |
| Polen Capital Management LLC | 6,601,800 | $523.1M | 1.64% | +104,612+1.6% | Added |
| T. Rowe Price Investment Management, Inc. | 6,418,209 | $508.5M | 0.34% | +2,3140.0% | Added |
| Macquarie Group Ltd | 6,176,880 | $489.4M | 0.61% | −1,150,187−15.7% | Reduced |
| Bank of America Corp | 6,139,226 | $486.4M | 0.04% | +2,566,144+71.8% | Added |
| Bank of New York Mellon Corp | 5,533,767 | $438.4M | 0.09% | −11,302−0.2% | Reduced |
| Norges Bank | 5,269,486 | $417.5M | 0.06% | −188,745−3.5% | Reduced |
| Vulcan Value Partners, LLC | 4,833,477 | $382.9M | 7.19% | −265,961−5.2% | Reduced |
| UBS Group AG | 4,739,479 | $375.5M | 0.08% | +3,234,275+214.9% | Added |
| Invesco Ltd. | 4,305,556 | $341.1M | 0.06% | +70,561+1.7% | Added |
| Northern Trust Corp | 4,027,534 | $319.1M | 0.05% | +34,210+0.9% | Added |
| TOMS Capital Investment Management LP | 3,508,000 | $277.9M | 20.58% | +3,508,000 | New |
| Capital Research Global Investors | 3,420,692 | $271.0M | 0.06% | +14,874+0.4% | Added |
| Amundi | 3,396,393 | $259.3M | 0.09% | +585,853+20.8% | Added |
| Tiger Global Management LLCSuperinvestorTiger Global Management | 3,245,109 | $257.1M | 0.97% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 3,031,331 | $240.2M | 0.05% | +213,082+7.6% | Added |
| Brown Advisory Inc | 3,022,692 | $239.5M | 0.34% | −357,374−10.6% | Reduced |
| Blair William & Co | 2,903,518 | $230.0M | 0.69% | −490,433−14.5% | Reduced |
| Goldman Sachs Group Inc | 2,700,396 | $214.0M | 0.04% | −729,594−21.3% | Reduced |
| UBS Asset Management Americas Inc | 2,551,086 | $202.1M | 0.05% | −96,763−3.7% | Reduced |
| Ameriprise Financial Inc | 2,523,681 | $199.9M | 0.05% | −225,435−8.2% | Reduced |
| JPMorgan Chase & Co | 2,485,862 | $197.0M | 0.02% | +1,332,813+115.6% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2,480,539 | $196.5M | 0.53% | +56,748+2.3% | Added |
| Mackenzie Financial Corp | 2,463,354 | $195.2M | 0.28% | −6,343,323−72.0% | Reduced |
| Voya Investment Management LLC | 2,437,108 | $193.1M | 0.11% | +950,054+63.9% | Added |
| Legal & General Group Plc | 2,383,875 | $188.9M | 0.05% | +75,522+3.3% | Added |
| DF Dent & Co Inc | 2,367,144 | $187.5M | 2.50% | −89,418−3.6% | Reduced |
| RGM Capital, LLC | 2,227,503 | $176.5M | 7.31% | +21,564+1.0% | Added |
| Dimensional Fund Advisors LP | 2,146,596 | $170.1M | 0.04% | +149,035+7.5% | Added |
| Fayez Sarofim & Co | 2,145,367 | $170.0M | 0.42% | +102,277+5.0% | Added |
| Franklin Resources Inc | 2,020,172 | $160.1M | 0.05% | −216,945−9.7% | Reduced |
| Third Point LLCSuperinvestorThird Point | 1,975,000 | $156.5M | 2.46% | +1,975,000 | New |
| Riverbridge Partners LLC | 1,866,345 | $147.9M | 2.37% | −77,538−4.0% | Reduced |
| Beck Mack & Oliver LLC | 1,810,537 | $143.4M | 2.87% | +105,194+6.2% | Added |
| Envestnet Asset Management Inc | 1,785,263 | $141.4M | 0.05% | −26,550−1.5% | Reduced |
| CIBC Private Wealth Group, LLC | 1,827,003 | $133.8M | 0.28% | +1,497,912+455.2% | Added |
| BNP Paribas Arbitrage, SA | 1,660,883 | $131.6M | 0.10% | +761,431+84.7% | Added |
| FMR LLC | 1,638,647 | $129.8M | 0.01% | +476,633+41.0% | Added |
| Federated Hermes, Inc. | 1,465,334 | $116.1M | 0.25% | −285,558−16.3% | Reduced |
| Harding Loevner LP | 1,440,099 | $114.1M | 0.87% | −248,581−14.7% | Reduced |
| Royal Bank of Canada | 1,383,183 | $109.6M | 0.02% | −69,259−4.8% | Reduced |
| Kensico Capital Management Corp | 1,331,300 | $105.5M | 2.38% | +615,500+86.0% | Added |
| Wells Fargo & Company | 1,232,751 | $97.7M | 0.02% | +76,672+6.6% | Added |
| Deutsche Bank AG | 1,229,141 | $97.4M | 0.04% | −360,856−22.7% | Reduced |
| Swiss National Bank | 1,188,165 | $94.1M | 0.07% | +30,465+2.6% | Added |
| Candlestick Capital Management LP | 1,178,647 | $93.4M | 3.67% | +1,178,647 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 1,155,877 | $91.6M | 0.20% | +64,927+6.0% | Added |
| ShawSpring Partners LLC | 1,148,302 | $91.0M | 12.50% | +238,499+26.2% | Added |
| Bares Capital Management, Inc. | 1,133,002 | $89.8M | 10.54% | +483,797+74.5% | Added |
| Soroban Capital Partners LP | 1,050,747 | $83.3M | 1.17% | +577,835+122.2% | Added |
| Nuveen, LLC | 1,044,506 | $82.8M | 0.03% | +1,044,506 | New |
| Barclays PLC | 1,043,668 | $82.7M | 0.04% | −634,464−37.8% | Reduced |
| Price T Rowe Associates Inc | 1,042,830 | $82.6M | 0.01% | −213,591−17.0% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 997,010 | $79.0M | 0.06% | +44,815+4.7% | Added |
| Bridgewater Associates, LP | 985,993 | $78.1M | 0.36% | +106,078+12.1% | Added |
| Colony Group, LLC | 983,793 | $77.9M | 0.20% | −242,489−19.8% | Reduced |
| Baird Financial Group, Inc. | 962,268 | $76.2M | 0.15% | −106,953−10.0% | Reduced |
| Chicago Capital, LLC | 943,955 | $74.8M | 2.11% | +29,016+3.2% | Added |
| American Capital Management Inc | 938,142 | $74.3M | 3.02% | +1,154+0.1% | Added |
| Pictet Asset Management Holding SA | 929,105 | $73.6M | 0.08% | −105,047−10.2% | Reduced |
| D. E. Shaw & Co., Inc. | 916,692 | $72.6M | 0.09% | −516,038−36.0% | Reduced |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 911,600 | $72.2M | 3.84% | +21,725+2.4% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 867,557 | $68.7M | 0.06% | +104,232+13.7% | Added |
| Ensign Peak Advisors, Inc | 835,209 | $66.2M | 0.13% | −53,225−6.0% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 832,539 | $66.0M | 0.16% | −75,309−8.3% | Reduced |
| Rhumbline Advisers | 768,366 | $60.9M | 0.06% | +54,747+7.7% | Added |
| HSBC Holdings PLC | 760,291 | $60.2M | 0.04% | −135,558−15.1% | Reduced |
| TimesSquare Capital Management, LLC | 752,887 | $59.7M | 0.96% | +83,901+12.5% | Added |
| Peregrine Capital Management LLC | 739,397 | $58.6M | 1.94% | +140,742+23.5% | Added |
| Stephens Investment Management Group LLC | 738,837 | $58.5M | 0.84% | +125,568+20.5% | Added |
| Ci Investments Inc. | 727,117 | $57.6M | 0.24% | +22,110+3.1% | Added |
| TD Asset Management Inc | 714,581 | $56.6M | 0.05% | +17,141+2.5% | Added |
| Citigroup Inc | 699,425 | $55.4M | 0.04% | +105,287+17.7% | Added |
| California State Teachers Retirement System | 696,449 | $55.2M | 0.07% | +15,864+2.3% | Added |
| Raymond James Financial Inc | 686,911 | $54.4M | 0.02% | +44,465+6.9% | Added |
| SEI Investments Co | 680,885 | $53.9M | 0.07% | +26,170+4.0% | Added |
| California Public Employees Retirement System | 630,649 | $50.0M | 0.03% | −9,175−1.4% | Reduced |
| Ownership Capital B.V. | 625,788 | $49.6M | 2.27% | −412,599−39.7% | Reduced |
| ProShare Advisors LLC | 617,771 | $48.9M | 0.11% | +75,736+14.0% | Added |
| Natixis Advisors, L.P. | 594,602 | $47.1M | 0.09% | +55,589+10.3% | Added |
| Douglas Lane & Associates, LLC | 556,751 | $44.1M | 0.65% | +173,367+45.2% | Added |
| National Pension Service | 537,062 | $42.6M | 0.04% | +45,316+9.2% | Added |
| Quantum Capital Management, LLC | 528,206 | $41.8M | 4.33% | −9,845−1.8% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 516,769 | $40.9M | 0.11% | −23,830−4.4% | Reduced |
| Telemark Asset Management, LLC | 500,000 | $39.6M | 5.18% | +100,000+25.0% | Added |
| Spyglass Capital Management LLC | 495,858 | $39.3M | 2.70% | −725,749−59.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 492,279 | $39.0M | 0.03% | +467,702+1,903.0% | Added |
| Alliancebernstein L.P. | 477,506 | $37.8M | 0.01% | +9,105+1.9% | Added |
| Allspring Global Investments Holdings, LLC | 476,245 | $37.7M | 0.07% | −6,467−1.3% | Reduced |