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 |
|---|---|---|---|---|---|
| Ieq Capital, LLC | 21,001 | $1.77M | 0.01% | −5,408−20.5% | Reduced |
| Alps Advisors Inc | 20,750 | $1.75M | 0.01% | +9,412+83.0% | Added |
| Securian Asset Management, Inc | 20,398 | $1.72M | 0.05% | −1,560−7.1% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 21,331 | $1.72M | 0.00% | +1,151+5.7% | Added |
| Krilogy Financial LLC | 24,117 | $1.70M | 0.06% | −1,157−4.6% | Reduced |
| Graham Capital Management, L.P. | 20,024 | $1.69M | 0.06% | +20,024 | New |
| Investment Management Corp of Ontario | 19,820 | $1.67M | 0.03% | +6,443+48.2% | Added |
| Toroso Investments, LLC | 19,814 | $1.67M | 0.01% | +4,976+33.5% | Added |
| B.O.S.S. Retirement Advisors, LLC | 19,714 | $1.66M | 0.40% | −1,188−5.7% | Reduced |
| Virtus Investment Advisers, Inc. | 19,623 | $1.66M | 0.47% | +19,623 | New |
| XTX Topco Ltd | 19,411 | $1.64M | 0.09% | −14,222−42.3% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 19,343 | $1.63M | 0.01% | +1,386+7.7% | Added |
| Quotient Wealth Partners, LLC | 19,293 | $1.63M | 0.04% | −1,554−7.5% | Reduced |
| Keybank National Association | 19,278 | $1.63M | 0.01% | +1,910+11.0% | Added |
| New Mexico Educational Retirement Board | 19,100 | $1.61M | 0.05% | −100−0.5% | Reduced |
| Kestra Advisory Services, LLC | 18,943 | $1.60M | 0.01% | +3,371+21.6% | Added |
| Bessemer Group Inc | 18,772 | $1.58M | 0.00% | +2,029+12.1% | Added |
| USA Financial Portformulas Corp | 18,757 | $1.58M | 0.28% | +18,757 | New |
| Tower Research Capital LLC (TRC) | 18,357 | $1.55M | 0.04% | −4,096−18.2% | Reduced |
| Commerce Bank | 18,221 | $1.54M | 0.01% | +88+0.5% | Added |
| Ameritas Investment Partners, Inc. | 17,991 | $1.52M | 0.05% | +176+1.0% | Added |
| Oak Thistle LLC | 17,714 | $1.49M | 0.23% | +13,400+310.6% | Added |
| Dai-Ichi Life Insurance Company, Ltd | 17,377 | $1.47M | 0.04% | −1,048−5.7% | Reduced |
| M&T Bank Corp | 17,252 | $1.46M | 0.00% | −3,716−17.7% | Reduced |
| Omers Administration Corp | 17,087 | $1.44M | 0.01% | −18,906−52.5% | Reduced |
| Main Management ETF Advisors, LLC | 17,050 | $1.44M | 0.05% | +17,050 | New |
| Norden Group LLC | 16,894 | $1.43M | 0.14% | +277+1.7% | Added |
| Waterway Wealth Management, LLC | 16,649 | $1.40M | 0.34% | +1,849+12.5% | Added |
| Mirabella Financial Services LLP | 16,340 | $1.38M | 0.12% | +10,007+158.0% | Added |
| Institute for Wealth Management, LLC. | 16,267 | $1.37M | 0.14% | −450−2.7% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 16,264 | $1.37M | 0.01% | +105+0.6% | Added |
| Allstate Corp | 16,098 | $1.36M | 0.03% | +16,098 | New |
| RMR Wealth Builders | 16,036 | $1.35M | 0.11% | +2,148+15.5% | Added |
| Redmond Asset Management, LLC | 15,742 | $1.33M | 0.33% | −65−0.4% | Reduced |
| SRS Capital Advisors, Inc. | 15,650 | $1.32M | 0.02% | +4,725+43.2% | Added |
| Conestoga Capital Advisors, LLC | 15,540 | $1.31M | 0.02% | +50+0.3% | Added |
| Tokio Marine Asset Management Co Ltd | 15,427 | $1.30M | 0.05% | +475+3.2% | Added |
| Benjamin Edwards Inc | 15,378 | $1.30M | 0.01% | +5,944+63.0% | Added |
| Walleye Capital LLC | 15,362 | $1.30M | 0.01% | +8,055+110.2% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 15,154 | $1.28M | 0.00% | −974−6.0% | Reduced |
| Dark Forest Capital Management LP | 14,497 | $1.22M | 0.05% | −8,156−36.0% | Reduced |
| CWM, LLC | 14,377 | $1.21M | 0.00% | +5,986+71.3% | Added |
| Voya Financial Advisors, Inc. | 14,392 | $1.21M | 0.12% | −1,146−7.4% | Reduced |
| Metis Global Partners, LLC | 14,304 | $1.21M | 0.03% | −834−5.5% | Reduced |
| Davis Capital Management | 14,277 | $1.20M | 0.83% | +14,277 | New |
| Grove Bank & Trust | 14,268 | $1.20M | 0.14% | −1,082−7.0% | Reduced |
| Meeder Asset Management Inc | 14,042 | $1.18M | 0.07% | −2,217−13.6% | Reduced |
| Sumitomo Life Insurance Co | 13,920 | $1.17M | 0.04% | −507−3.5% | Reduced |
| Horizon Investments, LLC | 13,832 | $1.17M | 0.02% | +1,451+11.7% | Added |
| Empowered Funds, LLC | 13,792 | $1.16M | 0.01% | +4,395+46.8% | Added |
| Miracle Mile Advisors, LLC | 13,624 | $1.15M | 0.02% | +3,409+33.4% | Added |
| RSM US Wealth Management LLC | 13,612 | $1.15M | 0.01% | −469−3.3% | Reduced |
| Schonfeld Strategic Advisors LLC | 13,580 | $1.15M | 0.01% | −19,911−59.5% | Reduced |
| Jump Financial, LLC | 13,574 | $1.15M | 0.01% | −14,607−51.8% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 13,503 | $1.14M | 0.02% | +45+0.3% | Added |
| Alliance Wealth Advisors, LLC | 13,490 | $1.14M | 0.27% | −3,237−19.4% | Reduced |
| Regatta Capital Group, LLC | 13,426 | $1.13M | 0.18% | +392+3.0% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 13,417 | $1.13M | 0.01% | +4,033+43.0% | Added |
| Chicago Partners Investment Group LLC | 14,387 | $1.13M | 0.03% | −2,117−12.8% | Reduced |
| Vident Advisory, LLC | 13,289 | $1.12M | 0.01% | +1,789+15.6% | Added |
| Vestmark Advisory Solutions, Inc. | 13,244 | $1.12M | 0.02% | −91−0.7% | Reduced |
| Mattern Capital Management, LLC | 13,197 | $1.11M | 0.13% | +2,134+19.3% | Added |
| Maridea Wealth Management LLC | 14,722 | $1.10M | 0.17% | +14,722 | New |
| Chicago Trust Co NA | 12,999 | $1.10M | 0.15% | −1,241−8.7% | Reduced |
| Assenagon Asset Management S.A. | 12,997 | $1.10M | 0.00% | +4,833+59.2% | Added |
| Bokf, NA | 12,976 | $1.09M | 0.02% | −495−3.7% | Reduced |
| Summit Trail Advisors, LLC | 12,874 | $1.09M | 0.02% | +3,928+43.9% | Added |
| DRW Securities, LLC | 12,850 | $1.08M | 0.06% | +9,027+236.1% | Added |
| Guidance Capital, Inc | 13,921 | $1.08M | 0.28% | +340+2.5% | Added |
| Bell Bank | 12,783 | $1.08M | 0.05% | −400−3.0% | Reduced |
| Banque Cantonale Vaudoise | 12,671 | $1.07M | 0.04% | +12,671 | New |
| GTS Securities LLC | 12,595 | $1.06M | 0.04% | +9,118+262.2% | Added |
| Phraction Management LLC | 12,562 | $1.06M | 0.31% | −1,780−12.4% | Reduced |
| Callan Family Office, LLC | 12,521 | $1.06M | 0.03% | −5,152−29.2% | Reduced |
| Howard Capital Management Inc. | 12,472 | $1.05M | 0.01% | −52−0.4% | Reduced |
| Louisbourg Investments Inc. | 15,685 | $1.05M | 0.23% | −10,845−40.9% | Reduced |
| E. Ohman J:or Asset Management AB | 12,300 | $1.04M | 0.02% | 00.0% | Unchanged |
| NewEdge Wealth, LLC | 14,506 | $1.02M | 0.01% | −11,792−44.8% | Reduced |
| Canada Post Corp Registered Pension Plan | 11,920 | $1.00M | 0.04% | +6,560+122.4% | Added |
| Bleakley Financial Group, LLC | 11,896 | $1.00M | 0.02% | +366+3.2% | Added |
| Vestcor Inc | 11,880 | $1.00M | 0.03% | +2,924+32.6% | Added |
| Fifth Third Bancorp | 11,864 | $1.00M | 0.00% | −165−1.4% | Reduced |
| Personal Cfo Solutions, LLC | 11,810 | $996.4K | 0.17% | +391+3.4% | Added |
| Gibbs Wealth Management | 11,777 | $993.6K | 0.22% | −1,981−14.4% | Reduced |
| Ascent Group, LLC | 11,753 | $991.6K | 0.04% | +1,250+11.9% | Added |
| Accretive Wealth Partners, LLC | 11,751 | $991.4K | 0.30% | +308+2.7% | Added |
| Westerkirk Capital Inc. | 11,700 | $987.1K | 0.11% | 00.0% | Unchanged |
| Postrock Partners LLC | 11,440 | $965.2K | 0.43% | 00.0% | Unchanged |
| MUFG Securities Americas Inc. | 11,424 | $963.8K | 0.06% | +2,074+22.2% | Added |
| Squarepoint Ops LLC | 11,300 | $953.4K | 0.00% | −4,862−30.1% | Reduced |
| Nomura Holdings Inc | 11,250 | $949.2K | 0.00% | +11,250 | New |
| China Universal Asset Management Co., Ltd. | 11,184 | $943.6K | 0.08% | +1,605+16.8% | Added |
| Kentucky Retirement Systems Insurance Trust Fund | 10,989 | $927.1K | 0.06% | −303−2.7% | Reduced |
| GAMMA Investing LLC | 10,926 | $921.8K | 0.05% | +1,734+18.9% | Added |
| Groupama Asset Managment | 10,916 | $921.0K | 0.01% | +10,916 | New |
| Atomi Financial Group, Inc. | 10,883 | $918.2K | 0.03% | +1,366+14.4% | Added |
| CenterBook Partners LP | 10,808 | $911.9K | 0.05% | +10,808 | New |
| Everence Capital Management Inc | 10,633 | $897.0K | 0.05% | +4,043+61.4% | Added |
| Gilbert & Cook, Inc. | 10,610 | $895.2K | 0.12% | −280−2.6% | Reduced |
| Sowell Financial Services LLC | 10,523 | $887.8K | 0.03% | −591−5.3% | Reduced |