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, Q2 2026
Institutional positions in Costar Group, Inc. as of Jun 30, 2026. 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
- 760
- −28 vs. Q1 2026
- Shares held
- 414.0M
- +5.90M (+1.4%) vs. Q1 2026
- Total value
- $11.7B
- −$4.74B (−28.8%) vs. Q1 2026
- New holders
- 115
- 303 more added
- Sold out
- 143
- 266 more reduced
9 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Financial Network Wealth Advisors LLC | 110 | $3.12K | 0.00% | 00.0% | Unchanged |
| Principia Wealth Advisory, LLC | 117 | $3.31K | 0.00% | +23+24.5% | Added |
| Bogart Wealth, LLC | 120 | $3.40K | 0.00% | +88+275.0% | Added |
| Manchester Capital Management LLC | 121 | $3.43K | 0.00% | +57+89.1% | Added |
| Cape Investment Advisory, Inc. | 121 | $3.43K | 0.00% | +121 | New |
| Bartlett & Co. Wealth Management LLC | 122 | $3.46K | 0.00% | +122 | New |
| Kilter Group LLC | 123 | $3.48K | 0.00% | +29+30.9% | Added |
| Ares Financial Consulting, LLC | 125 | $3.54K | 0.00% | +125 | New |
| Asset Dedication, LLC | 131 | $3.71K | 0.00% | 00.0% | Unchanged |
| Bruce G. Allen Investments, LLC | 138 | $3.91K | 0.00% | +78+130.0% | Added |
| MV Capital Management, Inc. | 138 | $3.91K | 0.00% | +24+21.1% | Added |
| Atlantic Trust, LLC | 139 | $3.94K | 0.00% | −35−20.1% | Reduced |
| Rational Advisors LLC | 155 | $4.39K | 0.00% | +16+11.5% | Added |
| Private Wealth Asset Management, LLC | 159 | $4.50K | 0.00% | 00.0% | Unchanged |
| Keating Financial Advisory Services, Inc. | 159 | $4.50K | 0.00% | +124+354.3% | Added |
| Tounjian Advisory Partners, LLC | 163 | $4.62K | 0.00% | +163 | New |
| Ronald Blue Trust, Inc. | 172 | $4.87K | 0.00% | −76−30.6% | Reduced |
| Quaker Wealth Management, LLC | 175 | $4.96K | 0.00% | +26+17.4% | Added |
| St Germain D J Co Inc | 176 | $4.98K | 0.00% | 00.0% | Unchanged |
| CX Institutional | 181 | $5.00K | 0.00% | −670−78.7% | Reduced |
| McDonald Partners LLC | 180 | $5.10K | 0.00% | +180 | New |
| Golden State Wealth Management, LLC | 190 | $5.38K | 0.00% | −145−43.3% | Reduced |
| First National Bank | 200 | $5.66K | 0.00% | +200 | New |
| TD Waterhouse Canada Inc. | 195 | $5.73K | 0.00% | −300−60.6% | Reduced |
| Barnes Dennig Private Wealth Management LLC | 203 | $5.75K | 0.00% | +203 | New |
| Birchwood Financial Partners, Inc. | 216 | $6.12K | 0.01% | −1−0.5% | Reduced |
| Johnson Financial Group, Inc. | 220 | $6.23K | 0.00% | −44−16.7% | Reduced |
| Cornerstone Planning Group LLC | 232 | $6.42K | 0.00% | −19−7.6% | Reduced |
| WPG Advisers, LLC | 231 | $6.54K | 0.00% | +10+4.5% | Added |
| Pinnacle Bancorp, Inc. | 236 | $6.68K | 0.00% | +171+263.1% | Added |
| Chilton Capital Management LLC | 245 | $6.94K | 0.00% | 00.0% | Unchanged |
| Davis Capital Management | 246 | $6.97K | 0.00% | −13,089−98.2% | Reduced |
| Atlas Capital Advisors LLC | 249 | $7.05K | 0.00% | −783−75.9% | Reduced |
| Private Trust Co NA | 276 | $7.82K | 0.00% | −175−38.8% | Reduced |
| Harbour Investments, Inc. | 279 | $7.90K | 0.00% | −178−38.9% | Reduced |
| Farmers & Merchants Investments Inc | 280 | $7.93K | 0.00% | −146−34.3% | Reduced |
| Avalon Trust Co | 297 | $8.41K | 0.00% | 00.0% | Unchanged |
| Silver Grove Financial Group, Inc. | 299 | $8.47K | 0.00% | +299 | New |
| Prosperity Bancshares Inc | 309 | $8.75K | 0.01% | 00.0% | Unchanged |
| Covestor Ltd | 298 | $9.00K | 0.01% | +131+78.4% | Added |
| Hilltop National Bank | 380 | $10.8K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 384 | $10.9K | 0.00% | +94+32.4% | Added |
| Stance Capital LLC | 400 | $11.3K | 0.00% | +202+102.0% | Added |
| First Command Advisory Services, Inc. | 405 | $11.5K | 0.00% | +218+116.6% | Added |
| TD Private Client Wealth LLC | 407 | $11.5K | 0.00% | −589−59.1% | Reduced |
| Fortitude Family Office, LLC | 431 | $12.2K | 0.00% | +409+1,859.1% | Added |
| SJS Investment Consulting Inc. | 447 | $12.7K | 0.00% | +430+2,529.4% | Added |
| Rossby Financial, LCC | 450 | $12.7K | 0.00% | −53−10.5% | Reduced |
| Quent Capital, LLC | 468 | $13.3K | 0.00% | +386+470.7% | Added |
| Wealth Enhancement Trust Services, Inc. | 481 | $13.6K | 0.00% | +481 | New |
| Bokf, NA | 501 | $14.2K | 0.00% | +199+65.9% | Added |
| CoreCap Advisors, LLC | 503 | $14.2K | 0.00% | +472+1,522.6% | Added |
| Cromwell Holdings LLC | 526 | $14.9K | 0.01% | +442+526.2% | Added |
| Close Asset Management Ltd | 520 | $15.0K | 0.00% | 00.0% | Unchanged |
| Colonial Trust Co | 544 | $15.4K | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 520 | $15.5K | 0.00% | −456−46.7% | Reduced |
| Clearstead Advisors, LLC | 586 | $16.6K | 0.00% | −1,377−70.1% | Reduced |
| Park Place Capital Corp | 588 | $16.7K | 0.00% | +43+7.9% | Added |
| CVA Family Office, LLC | 590 | $16.7K | 0.00% | +429+266.5% | Added |
| LRI Investments, LLC | 591 | $16.7K | 0.00% | +591 | New |
| Twin Lakes Capital Management, LLC | 598 | $16.9K | 0.01% | −21−3.4% | Reduced |
| Bryn Mawr Trust Co | 640 | $18.1K | 0.00% | 00.0% | Unchanged |
| HFM Investment Advisors, LLC | 645 | $18.3K | 0.01% | +8+1.3% | Added |
| Raiffeisen Bank International AG | 629 | $18.4K | 0.00% | +334+113.2% | Added |
| Kayne Anderson Rudnick Investment Management LLC | 661 | $18.7K | 0.00% | −231−25.9% | Reduced |
| Fulcrum Asset Management LLP | 656 | $19.2K | 0.00% | +656 | New |
| Caldwell Sutter Capital, Inc. | 696 | $19.7K | 0.01% | +696 | New |
| Zions Bancorporation, National Association | 773 | $21.9K | 0.00% | +41+5.6% | Added |
| EFG International AG | 865 | $24.5K | 0.00% | 00.0% | Unchanged |
| Financial Consulate, Inc | 877 | $24.8K | 0.00% | −857−49.4% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 880 | $24.9K | 0.00% | 00.0% | Unchanged |
| Salomon & Ludwin, LLC | 868 | $25.5K | 0.00% | +449+107.2% | Added |
| Pinnacle Wealth Planning Services, Inc. | 1,065 | $30.2K | 0.00% | +755+243.5% | Added |
| Winthrop Capital Management, LLC | 1,087 | $31.0K | 0.01% | +18+1.7% | Added |
| Onefund, LLC | 1,112 | $31.5K | 0.02% | −53−4.5% | Reduced |
| Exchange Traded Concepts, LLC | 1,151 | $32.6K | 0.00% | −83,298−98.6% | Reduced |
| Transamerica Financial Advisors, Inc. | 1,156 | $32.7K | 0.00% | +288+33.2% | Added |
| University of Texas/Texas Am Investment Managment Co | 1,169 | $33.1K | 0.00% | +1,169 | New |
| Abound Wealth Management | 1,272 | $36.0K | 0.01% | +11+0.9% | Added |
| Eurizon SLJ Capital Ltd | 1,279 | $36.2K | 0.01% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 1,296 | $36.7K | 0.01% | 00.0% | Unchanged |
| ORG Wealth Partners, LLC | 1,394 | $39.5K | 0.01% | −6,103−81.4% | Reduced |
| Leonteq Securities AG | 1,457 | $41.3K | 0.00% | −3,286−69.3% | Reduced |
| GW&K Investment Management, LLC | 1,623 | $46.0K | 0.00% | +997+159.3% | Added |
| Pin Oak Investment Advisors Inc | 1,672 | $47.0K | 0.03% | 00.0% | Unchanged |
| Delta Asset Management LLC | 1,760 | $49.8K | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co | 1,783 | $51.2K | 0.00% | +33+1.9% | Added |
| Los Angeles Capital Management LLC | 1,946 | $55.1K | 0.00% | 00.0% | Unchanged |
| WealthCollab, LLC | 2,000 | $56.6K | 0.02% | +1,500+300.0% | Added |
| Livforsakringsbolaget Skandia, Omsesidigt | 2,100 | $59.4K | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 2,243 | $63.5K | 0.00% | +166+8.0% | Added |
| Oslo Pensjonsforsikring AS | 2,309 | $65.4K | 0.01% | 00.0% | Unchanged |
| Signaturefd, LLC | 2,725 | $77.2K | 0.00% | −239−8.1% | Reduced |
| Generali Asset Management SPA SGR | 2,764 | $78.3K | 0.00% | −453−14.1% | Reduced |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 2,900 | $82.1K | 0.02% | 00.0% | Unchanged |
| Cullen/Frost Bankers, Inc. | 3,098 | $87.7K | 0.00% | +1,822+142.8% | Added |
| True Wealth Design, LLC | 3,179 | $90.0K | 0.02% | +2,423+320.5% | Added |
| Versant Capital Management, Inc | 3,431 | $97.2K | 0.01% | +2,384+227.7% | Added |
| Harbor Investment Advisory, LLC | 3,570 | $101.1K | 0.01% | −725−16.9% | Reduced |
| Smartleaf Asset Management LLC | 3,453 | $101.3K | 0.00% | 00.0% | Unchanged |