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, Q3 2025
Institutional positions in Costar Group, Inc. as of Sep 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
- 905
- +46 vs. Q2 2025
- Shares held
- 413.6M
- −5.67M (−1.4%) vs. Q2 2025
- Total value
- $34.9B
- +$1.15B (+3.4%) vs. Q2 2025
- New holders
- 107
- 364 more added
- Sold out
- 61
- 314 more reduced
14 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 2,150 | $181.4K | 0.04% | +80+3.9% | Added |
| Livforsakringsbolaget Skandia, Omsesidigt | 2,100 | $177.1K | 0.01% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 2,068 | $174.5K | 0.00% | +110+5.6% | Added |
| Atlantic Union Bankshares Corp | 1,899 | $160.2K | 0.00% | +1,667+718.5% | Added |
| EverSource Wealth Advisors, LLC | 1,862 | $157.1K | 0.01% | +12+0.6% | Added |
| Brown Brothers Harriman & Co | 1,814 | $153.0K | 0.00% | +684+60.5% | Added |
| Osterweis Capital Management Inc | 1,768 | $149.2K | 0.01% | −49−2.7% | Reduced |
| Delta Asset Management LLC | 1,760 | $148.5K | 0.01% | 00.0% | Unchanged |
| Whittier Trust Co | 1,750 | $148.4K | 0.00% | −250−12.5% | Reduced |
| Proathlete Wealth Management LLC | 1,666 | $140.6K | 0.04% | 00.0% | Unchanged |
| Westpac Banking Corp | 1,593 | $134.4K | 0.01% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 1,586 | $133.8K | 0.00% | +125+8.6% | Added |
| Whittier Trust Co of Nevada Inc | 1,475 | $125.1K | 0.00% | −16−1.1% | Reduced |
| Johnson Financial Group, Inc. | 1,459 | $123.1K | 0.00% | +1,459 | New |
| Stephenson National Bank & Trust | 1,430 | $120.6K | 0.04% | 00.0% | Unchanged |
| Larson Financial Group LLC | 1,309 | $110.4K | 0.00% | −535−29.0% | Reduced |
| HighMark Wealth Management LLC | 1,296 | $109.3K | 0.05% | −3−0.2% | Reduced |
| Quarry LP | 1,269 | $107.1K | 0.03% | +874+221.3% | Added |
| Abound Wealth Management | 1,256 | $106.0K | 0.03% | 00.0% | Unchanged |
| Loomis Sayles & Co L P | 1,163 | $98.1K | 0.00% | 00.0% | Unchanged |
| Onefund, LLC | 1,098 | $92.6K | 0.06% | +39+3.7% | Added |
| Quest Partners LLC | 1,069 | $90.2K | 0.01% | +1,069 | New |
| Group One Trading, L.P. | 1,061 | $89.5K | 0.00% | +1,061 | New |
| Cromwell Holdings LLC | 1,037 | $87.5K | 0.05% | 00.0% | Unchanged |
| Pension & Wealth Management Advisors, Inc. | 1,031 | $87.0K | 0.03% | +41+4.1% | Added |
| Sentry Investment Management LLC | 1,082 | $86.0K | 0.06% | −91−7.8% | Reduced |
| Newbridge Financial Services Group, Inc. | 897 | $75.7K | 0.01% | +897 | New |
| Bryn Mawr Trust Co | 842 | $71.0K | 0.00% | −1,167−58.1% | Reduced |
| Promus Capital, LLC | 759 | $64.0K | 0.04% | 00.0% | Unchanged |
| WPG Advisers, LLC | 716 | $60.4K | 0.05% | −19−2.6% | Reduced |
| CVA Family Office, LLC | 702 | $59.2K | 0.01% | +50+7.7% | Added |
| Bank of Jackson Hole Trust | 648 | $54.7K | 0.03% | +648 | New |
| HFM Investment Advisors, LLC | 646 | $54.5K | 0.02% | 00.0% | Unchanged |
| Twin Lakes Capital Management, LLC | 635 | $53.6K | 0.02% | 00.0% | Unchanged |
| Essential Partners LLC | 632 | $53.3K | 0.02% | +601+1,938.7% | Added |
| Rise Advisors, LLC | 629 | $53.1K | 0.02% | +11+1.8% | Added |
| GW&K Investment Management, LLC | 587 | $50.0K | 0.00% | +23+4.1% | Added |
| Colonial Trust Co | 593 | $50.0K | 0.01% | 00.0% | Unchanged |
| JPL Wealth Management, LLC | 569 | $48.0K | 0.01% | +569 | New |
| Wealthspire Advisors, LLC | 566 | $47.8K | 0.00% | +566 | New |
| Zions Bancorporation, National Association | 563 | $47.5K | 0.00% | +166+41.8% | Added |
| Park Place Capital Corp | 545 | $46.0K | 0.01% | 00.0% | Unchanged |
| Close Asset Management Ltd | 520 | $44.0K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 515 | $43.5K | 0.03% | +513+25,650.0% | Added |
| Rossby Financial, LCC | 503 | $42.0K | 0.01% | +162+47.5% | Added |
| Rothschild Investment LLC | 490 | $41.3K | 0.00% | −742−60.2% | Reduced |
| Annis Gardner Whiting Capital Advisors, LLC | 478 | $40.3K | 0.01% | −63−11.6% | Reduced |
| Pin Oak Investment Advisors Inc | 476 | $40.2K | 0.03% | +58+13.9% | Added |
| Financial Network Wealth Advisors LLC | 461 | $38.9K | 0.04% | −63−12.0% | Reduced |
| Private Trust Co NA | 451 | $38.1K | 0.00% | −25−5.3% | Reduced |
| Chilton Capital Management LLC | 429 | $36.2K | 0.00% | −214−33.3% | Reduced |
| Pinnacle Bancorp, Inc. | 428 | $36.1K | 0.01% | 00.0% | Unchanged |
| Central Pacific Bank - Trust Division | 420 | $35.4K | 0.00% | −205−32.8% | Reduced |
| SJS Investment Consulting Inc. | 409 | $34.5K | 0.00% | +396+3,046.2% | Added |
| Ancora Advisors, LLC | 405 | $34.2K | 0.00% | 00.0% | Unchanged |
| Cullen/Frost Bankers, Inc. | 373 | $31.5K | 0.00% | +18+5.1% | Added |
| Root Financial Partners, LLC | 369 | $31.1K | 0.00% | +369 | New |
| Westside Investment Management, Inc. | 360 | $30.1K | 0.00% | +180+100.0% | Added |
| Hopwood Financial Services, Inc. | 350 | $29.5K | 0.02% | 00.0% | Unchanged |
| Winthrop Capital Management, LLC | 346 | $29.0K | 0.01% | 00.0% | Unchanged |
| McIlrath & Eck, LLC | 338 | $28.5K | 0.00% | 00.0% | Unchanged |
| Manning & Napier Advisors LLC | 330 | $27.8K | 0.00% | +330 | New |
| E Fund Management (Hong Kong) Co., Ltd. | 319 | $26.9K | 0.02% | +123+62.8% | Added |
| SBI Securities Co., Ltd. | 310 | $26.2K | 0.00% | −183−37.1% | Reduced |
| Hemington Wealth Management | 312 | $26.0K | 0.00% | +39+14.3% | Added |
| Quent Capital, LLC | 308 | $26.0K | 0.00% | +308 | New |
| Berbice Capital Management LLC | 300 | $25.3K | 0.02% | 00.0% | Unchanged |
| Farmers & Merchants Investments Inc | 270 | $22.8K | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 266 | $22.0K | 0.01% | 00.0% | Unchanged |
| South State Corp. | 251 | $21.2K | 0.00% | −43−14.6% | Reduced |
| Atlantic Trust, LLC | 245 | $20.7K | 0.00% | +4+1.7% | Added |
| Harbour Investments, Inc. | 241 | $20.3K | 0.00% | +36+17.6% | Added |
| Cornerstone Planning Group LLC | 273 | $19.0K | 0.00% | +8+3.0% | Added |
| Catalyst Capital Advisors LLC | 212 | $17.9K | 0.00% | −42−16.5% | Reduced |
| Truvestments Capital LLC | 205 | $17.3K | 0.00% | +33+19.2% | Added |
| Salomon & Ludwin, LLC | 203 | $17.2K | 0.00% | +155+322.9% | Added |
| Bell Investment Advisors, Inc | 203 | $17.1K | 0.00% | −3−1.5% | Reduced |
| Dynamic Wealth Strategies, LLC | 200 | $16.9K | 0.01% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 199 | $16.8K | 0.00% | +12+6.4% | Added |
| Private Wealth Management Group, LLC | 191 | $16.1K | 0.00% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 190 | $16.0K | 0.00% | +8+4.4% | Added |
| Shell Asset Management Co | 186 | $16.0K | 0.00% | −67,264−99.7% | Reduced |
| Ameritas Advisory Services, LLC | 180 | $15.2K | 0.00% | −14−7.2% | Reduced |
| ORG Partners LLC | 171 | $14.4K | 0.00% | +58+51.3% | Added |
| Washington Trust Advisors, Inc. | 162 | $13.7K | 0.00% | 00.0% | Unchanged |
| Private Wealth Asset Management, LLC | 161 | $13.6K | 0.00% | 00.0% | Unchanged |
| Transamerica Financial Advisors, Inc. | 161 | $13.6K | 0.00% | +161 | New |
| Leonteq Securities AG | 154 | $13.0K | 0.00% | −1,415−90.2% | Reduced |
| Sunbelt Securities, Inc. | 153 | $12.9K | 0.00% | −5−3.2% | Reduced |
| Quaker Wealth Management, LLC | 150 | $12.7K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 143 | $12.1K | 0.00% | +143 | Added |
| Geneos Wealth Management Inc. | 140 | $11.8K | 0.00% | −807−85.2% | Reduced |
| Clear Street Markets LLC | 137 | $11.6K | 0.00% | +137 | New |
| MV Capital Management, Inc. | 135 | $11.4K | 0.00% | +1+0.7% | Added |
| Ameriflex Group, Inc. | 134 | $11.3K | 0.00% | +134 | New |
| Rational Advisors LLC | 132 | $11.1K | 0.00% | +24+22.2% | Added |
| Asset Dedication, LLC | 131 | $11.1K | 0.00% | 00.0% | Unchanged |
| UMA Financial Services, Inc. | 131 | $11.1K | 0.00% | +117+835.7% | Added |
| Aventura Private Wealth, LLC | 122 | $10.3K | 0.00% | 00.0% | Unchanged |
| Manchester Capital Management LLC | 119 | $10.0K | 0.00% | +37+45.1% | Added |