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, Q4 2025
Institutional positions in Costar Group, Inc. as of Dec 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
- 847
- −40 vs. Q3 2025
- Shares held
- 422.7M
- +11.7M (+2.8%) vs. Q3 2025
- Total value
- $28.4B
- −$6.23B (−18.0%) vs. Q3 2025
- New holders
- 103
- 273 more added
- Sold out
- 143
- 388 more reduced
18 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Citizens Business Bank | 3,812 | $256.3K | 0.04% | −241−5.9% | Reduced |
| We Are One Seven, LLC | 3,791 | $254.9K | 0.01% | −20−0.5% | Reduced |
| Jones Financial Companies LLLP | 3,773 | $253.7K | 0.00% | +734+24.2% | Added |
| HighPoint Advisor Group LLC | 3,770 | $253.5K | 0.01% | −910−19.4% | Reduced |
| Leonteq Securities AG | 3,705 | $249.1K | 0.01% | +3,551+2,305.8% | Added |
| Yarbrough Capital, LLC | 3,670 | $246.8K | 0.01% | −4,340−54.2% | Reduced |
| Cercano Management LLC | 3,637 | $244.6K | 0.01% | +3,637 | New |
| Integrated Wealth Concepts LLC | 3,609 | $242.7K | 0.00% | −1,007−21.8% | Reduced |
| Loomis Sayles & Co L P | 3,515 | $236.3K | 0.00% | +2,352+202.2% | Added |
| XTX Topco Ltd | 3,475 | $233.7K | 0.01% | −15,936−82.1% | Reduced |
| Salvus Wealth Management, LLC | 3,467 | $233.1K | 0.13% | +148+4.5% | Added |
| Bokf, NA | 3,435 | $231.0K | 0.00% | −9,541−73.5% | Reduced |
| Allworth Financial LP | 3,428 | $230.5K | 0.00% | −317−8.5% | Reduced |
| Diversify Advisory Services, LLC | 3,515 | $229.7K | 0.01% | −457−11.5% | Reduced |
| Pensionmark Financial Group, LLC | 3,391 | $228.0K | 0.00% | −128−3.6% | Reduced |
| Diversified Trust Co | 3,371 | $226.7K | 0.00% | −5,205−60.7% | Reduced |
| VARCOV Co. | 3,371 | $226.7K | 0.09% | +3,371 | New |
| Financial Consulate, Inc | 3,360 | $225.9K | 0.03% | −1,052−23.8% | Reduced |
| RMB Capital Management, LLC | 3,359 | $225.9K | 0.00% | +3,359 | New |
| Mirabella Financial Services LLP | 3,321 | $223.3K | 0.02% | −13,019−79.7% | Reduced |
| Everhart Financial Group, Inc. | 3,311 | $222.6K | 0.02% | −5,144−60.8% | Reduced |
| CX Institutional | 3,285 | $221.0K | 0.01% | +187+6.0% | Added |
| Index Fund Advisors, Inc. | 3,283 | $220.7K | 0.01% | 00.0% | Unchanged |
| Cooper Financial Group | 3,259 | $219.1K | 0.02% | +88+2.8% | Added |
| SG Trading Solutions, LLC | 3,237 | $218.0K | 0.05% | +3,237 | New |
| Havemeyer Place LP | 3,225 | $216.8K | 0.04% | +3,225 | New |
| Patton Fund Management, Inc. | 3,181 | $213.9K | 0.03% | +522+19.6% | Added |
| Signaturefd, LLC | 3,158 | $212.4K | 0.00% | −1,639−34.2% | Reduced |
| Steward Partners Investment Advisory, LLC | 3,103 | $208.6K | 0.00% | −2,777−47.2% | Reduced |
| Riverview Capital Advisers, LLC | 3,063 | $206.0K | 0.06% | +100+3.4% | Added |
| Phraction Management LLC | 3,000 | $201.7K | 0.05% | −9,562−76.1% | Reduced |
| Twinbeech Capital LP | 3,000 | $201.7K | 0.01% | −23−0.8% | Reduced |
| Bridges Investment Management Inc | 3,000 | $201.7K | 0.00% | 00.0% | Unchanged |
| Harel Insurance Investments & Financial Services Ltd. | 2,755 | $185.0K | 0.00% | +592+27.4% | Added |
| MAI Capital Management | 2,660 | $178.8K | 0.00% | −2,531−48.8% | Reduced |
| Quadrant Capital Group LLC | 2,646 | $177.9K | 0.01% | +146+5.8% | Added |
| Westpac Banking Corp | 2,306 | $155.1K | 0.01% | +713+44.8% | Added |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 2,300 | $154.7K | 0.04% | +150+7.0% | Added |
| STF Management LP | 2,287 | $153.8K | 0.14% | −3,791−62.4% | Reduced |
| TD Private Client Wealth LLC | 2,242 | $150.8K | 0.00% | −797−26.2% | Reduced |
| ORG Wealth Partners, LLC | 2,224 | $149.5K | 0.04% | −1,219−35.4% | Reduced |
| Rothschild Investment LLC | 2,208 | $148.5K | 0.01% | +1,718+350.6% | Added |
| Assetmark, Inc | 2,153 | $144.8K | 0.00% | −1,001−31.7% | Reduced |
| Livforsakringsbolaget Skandia, Omsesidigt | 2,100 | $141.2K | 0.01% | 00.0% | Unchanged |
| Zions Bancorporation, National Association | 2,076 | $139.6K | 0.01% | +1,513+268.7% | Added |
| SageView Advisory Group, LLC | 1,996 | $134.2K | 0.00% | −563−22.0% | Reduced |
| Farther Finance Advisors, LLC | 1,970 | $132.5K | 0.00% | +384+24.2% | Added |
| Massmutual Trust Co FSB | 1,779 | $119.6K | 0.00% | −289−14.0% | Reduced |
| Delta Asset Management LLC | 1,760 | $118.3K | 0.01% | 00.0% | Unchanged |
| Whittier Trust Co | 1,750 | $117.6K | 0.00% | 00.0% | Unchanged |
| Dara Capital US, Inc. | 1,732 | $116.5K | 0.10% | +1,732 | New |
| EverSource Wealth Advisors, LLC | 1,695 | $114.0K | 0.00% | −167−9.0% | Reduced |
| Caden Capital Partners, LP | 1,515 | $101.9K | 0.23% | −347,986−99.6% | Reduced |
| E Fund Management (Hong Kong) Co., Ltd. | 1,553 | $95.0K | 0.04% | +1,234+386.8% | Added |
| Whittier Trust Co of Nevada Inc | 1,390 | $93.4K | 0.00% | −85−5.8% | Reduced |
| HighMark Wealth Management LLC | 1,296 | $87.1K | 0.04% | 00.0% | Unchanged |
| Clear Street Markets LLC | 1,274 | $85.7K | 0.02% | +1,137+829.9% | Added |
| Abound Wealth Management | 1,253 | $84.3K | 0.02% | −3−0.2% | Reduced |
| Eurizon SLJ Capital Ltd | 1,244 | $83.6K | 0.03% | +1,244 | New |
| Onefund, LLC | 1,169 | $78.6K | 0.05% | +71+6.5% | Added |
| Pinnacle Wealth Planning Services, Inc. | 1,138 | $76.5K | 0.01% | +1,138 | New |
| Versant Capital Management, Inc | 1,120 | $75.3K | 0.01% | −1,588−58.6% | Reduced |
| DV Trading LLC | 1,088 | $73.2K | 0.01% | +1,088 | New |
| Sentry Investment Management LLC | 1,082 | $73.0K | 0.05% | 00.0% | Unchanged |
| Fideuram Asset Management (Ireland) dac | 945 | $72.8K | 0.01% | +945 | New |
| Brown Brothers Harriman & Co | 1,048 | $70.5K | 0.00% | −766−42.2% | Reduced |
| Atlantic Union Bankshares Corp | 1,047 | $70.4K | 0.00% | −852−44.9% | Reduced |
| Cromwell Holdings LLC | 955 | $64.2K | 0.04% | −82−7.9% | Reduced |
| Quarry LP | 941 | $63.3K | 0.01% | −328−25.8% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 880 | $59.2K | 0.00% | −72,030−98.8% | Reduced |
| Pin Oak Investment Advisors Inc | 1,033 | $52.0K | 0.04% | +557+117.0% | Added |
| Bank of Jackson Hole Trust | 729 | $49.0K | 0.02% | +81+12.5% | Added |
| Johnson Financial Group, Inc. | 720 | $48.4K | 0.00% | −739−50.7% | Reduced |
| Larson Financial Group LLC | 691 | $46.5K | 0.00% | −618−47.2% | Reduced |
| HFM Investment Advisors, LLC | 644 | $43.3K | 0.02% | −2−0.3% | Reduced |
| Bryn Mawr Trust Co | 640 | $43.0K | 0.00% | −202−24.0% | Reduced |
| Twin Lakes Capital Management, LLC | 635 | $42.7K | 0.02% | 00.0% | Unchanged |
| Vega Investment Solutions | 629 | $42.3K | 0.01% | +629 | New |
| Stephenson National Bank & Trust | 618 | $41.6K | 0.01% | −812−56.8% | Reduced |
| IFP Advisors, Inc | 614 | $41.3K | 0.00% | +471+329.4% | Added |
| GW&K Investment Management, LLC | 593 | $40.0K | 0.00% | +6+1.0% | Added |
| DV Equities, LLC | 590 | $39.7K | 0.01% | +590 | New |
| Colonial Trust Co | 583 | $39.5K | 0.01% | −10−1.7% | Reduced |
| Park Place Capital Corp | 545 | $36.6K | 0.01% | 00.0% | Unchanged |
| GWM Advisors LLC | 523 | $35.2K | 0.00% | −5,193−90.9% | Reduced |
| Close Asset Management Ltd | 520 | $35.0K | 0.00% | 00.0% | Unchanged |
| Annis Gardner Whiting Capital Advisors, LLC | 508 | $34.2K | 0.01% | +30+6.3% | Added |
| Rossby Financial, LCC | 458 | $30.8K | 0.01% | −45−8.9% | Reduced |
| CVA Family Office, LLC | 450 | $30.3K | 0.00% | −252−35.9% | Reduced |
| Financial Network Wealth Advisors LLC | 430 | $28.9K | 0.03% | −31−6.7% | Reduced |
| Lloyd Advisory Services, LLC. | 427 | $28.7K | 0.01% | +427 | New |
| Ancora Advisors, LLC | 419 | $28.2K | 0.00% | +14+3.5% | Added |
| Essential Partners LLC | 414 | $27.8K | 0.01% | −218−34.5% | Reduced |
| Reflection Asset Management | 404 | $27.2K | 0.02% | +404 | New |
| WPG Advisers, LLC | 380 | $25.6K | 0.02% | −336−46.9% | Reduced |
| Westside Investment Management, Inc. | 360 | $23.6K | 0.00% | 00.0% | Unchanged |
| Winthrop Capital Management, LLC | 346 | $23.0K | 0.01% | 00.0% | Unchanged |
| Montag A & Associates Inc | 300 | $20.2K | 0.00% | +300 | New |
| SBI Securities Co., Ltd. | 292 | $19.6K | 0.00% | −18−5.8% | Reduced |
| Transamerica Financial Advisors, Inc. | 287 | $19.3K | 0.00% | +126+78.3% | Added |