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 |
|---|---|---|---|---|---|
| Bruce G. Allen Investments, LLC | 22 | $1.48K | 0.00% | −21−48.8% | Reduced |
| NVWM, LLC | 22 | $1.48K | 0.00% | +3+15.8% | Added |
| ZRC Wealth Management, LLC | 21 | $1.41K | 0.00% | −5−19.2% | Reduced |
| Proathlete Wealth Management LLC | 21 | $1.41K | 0.00% | −1,645−98.7% | Reduced |
| Wilkerson Advisory Group LLC | 21 | $1.41K | 0.00% | +21 | New |
| 1620 Investment Advisors, Inc. | 18 | $1.21K | 0.00% | 00.0% | Unchanged |
| SHP Wealth Management | 18 | $1.21K | 0.00% | +18 | New |
| Aspect Partners, LLC | 17 | $1.14K | 0.00% | −9−34.6% | Reduced |
| IMG Wealth Management, Inc. | 17 | $1.14K | 0.00% | +17 | New |
| Independence Bank of Kentucky | 16 | $1.08K | 0.00% | +16 | New |
| Wealth Watch Advisors, INC | 15 | $1.01K | 0.00% | +2+15.4% | Added |
| Stephens Consulting, LLC | 15 | $1.01K | 0.00% | +15 | New |
| CKW Financial Group | 20 | $1.00K | 0.00% | 00.0% | Unchanged |
| Navalign, LLC | 14 | $941 | 0.00% | +14 | New |
| American Capital Advisory, LLC | 13 | $875 | 0.00% | +6+85.7% | Added |
| Mowery & Schoenfeld Wealth Management, LLC | 10 | $673 | 0.00% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 10 | $672 | 0.00% | −10−50.0% | Reduced |
| Global Trust Asset Management, LLC | 10 | $672 | 0.00% | 00.0% | Unchanged |
| Key Financial Inc | 10 | $672 | 0.00% | 00.0% | Unchanged |
| 1015 Capital Partners, LLC | 8 | $538 | 0.00% | +8 | New |
| TFC Financial Management | 7 | $471 | 0.00% | −16−69.6% | Reduced |
| Strengthening Families & Communities, LLC | 7 | $471 | 0.00% | 00.0% | Unchanged |
| Financial Management Professionals, Inc. | 6 | $403 | 0.00% | −108−94.7% | Reduced |
| Brown, Lisle/Cummings, Inc. | 6 | $403 | 0.00% | 00.0% | Unchanged |
| Sunbelt Securities, Inc. | 5 | $336 | 0.00% | −148−96.7% | Reduced |
| CoreCap Advisors, LLC | 5 | $336 | 0.00% | −60−92.3% | Reduced |
| Creative Financial Designs Inc | 5 | $336 | 0.00% | −10−66.7% | Reduced |
| United Community Bank | 5 | $336 | 0.00% | −8−61.5% | Reduced |
| Luken Investment Analytics, LLC | 5 | $336 | 0.00% | +5 | New |
| Sound Income Strategies, LLC | 5 | $327 | 0.00% | 00.0% | Unchanged |
| Rialto Wealth Management, LLC | 4 | $269 | 0.00% | −10−71.4% | Reduced |
| Hughes Financial Services, LLC | 4 | $269 | 0.00% | −2−33.3% | Reduced |
| Seneschal Advisors, LLC | 4 | $269 | 0.00% | 00.0% | Unchanged |
| DecisionPoint Financial, LLC | 4 | $269 | 0.00% | 00.0% | Unchanged |
| CDKV Holdings LLC | 4 | $269 | 0.00% | +4 | New |
| Vision Financial Markets LLC | 3 | $202 | 0.00% | 00.0% | Unchanged |
| Legacy Wealth Managment, LLC | 3 | $202 | 0.00% | 00.0% | Unchanged |
| Clark Wealth Partners | 3 | $202 | 0.00% | 00.0% | Unchanged |
| Kingdom Financial Group LLC. | 3 | $202 | 0.00% | +3 | New |
| Optima Capital LLC | 3 | $202 | 0.00% | +3 | New |
| Parallax Volatility Advisers, L.P. | 2 | $134 | 0.00% | 00.0% | Unchanged |
| Winnow Wealth LLC | 1 | $68 | 0.00% | −11−91.7% | Reduced |
| Caitong International Asset Management Co., Ltd | 1 | $67 | 0.00% | −514−99.8% | Reduced |
| Ameriflex Group, Inc. | 1 | $67 | 0.00% | −133−99.3% | Reduced |
| Eastern Bank | 1 | $67 | 0.00% | −43−97.7% | Reduced |
| Hollencrest Capital Management | 1 | $67 | 0.00% | 00.0% | Unchanged |
| Scarborough Advisors, LLC | 1 | $67 | 0.00% | 00.0% | Unchanged |
| Telemark Asset Management, LLC | 0 | $0 | 0.00% | −550,000−100.0% | Sold out |
| Frontier Capital Management Co LLC | 0 | $0 | 0.00% | −490,623−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −453,897−100.0% | Sold out |
| Intrinsic Edge Capital Management LLC | 0 | $0 | 0.00% | −224,297−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −162,515−100.0% | Sold out |
| Gillson Capital LP | 0 | $0 | 0.00% | −149,319−100.0% | Sold out |
| Hood River Capital Management LLC | 0 | $0 | 0.00% | −138,064−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −76,982−100.0% | Sold out |
| Tsai Capital Corp | 0 | $0 | 0.00% | −58,899−100.0% | Sold out |
| Lakehouse Capital Pty Ltd | 0 | $0 | 0.00% | −58,408−100.0% | Sold out |
| Summit Wealth Group LLC | 0 | $0 | 0.00% | −110,820−100.0% | Sold out |
| Archon Partners LLC | 0 | $0 | 0.00% | −54,000−100.0% | Sold out |
| Baer Investment Advisory LLC | 0 | $0 | 0.00% | −52,517−100.0% | Sold out |
| BCJ Capital Management, LLC | 0 | $0 | 0.00% | −45,221−100.0% | Sold out |
| Kids Capital Management, L.P. | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −38,290−100.0% | Sold out |
| Generate Investment Management Ltd | 0 | $0 | 0.00% | −37,573−100.0% | Sold out |
| Kampmann Melissa S. | 0 | $0 | 0.00% | −28,900−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −28,201−100.0% | Sold out |
| Politan Capital Management LP | 0 | $0 | 0.00% | −27,635−100.0% | Sold out |
| Blue Capital, Inc. | 0 | $0 | 0.00% | −27,617−100.0% | Sold out |
| Pitcairn Co | 0 | $0 | 0.00% | −26,328−100.0% | Sold out |
| WoodTrust Financial Corp | 0 | $0 | 0.00% | −25,540−100.0% | Sold out |
| First Financial Bankshares Inc | 0 | $0 | 0.00% | −23,511−100.0% | Sold out |
| Shaker Investments LLC | 0 | $0 | 0.00% | −21,583−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −20,024−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −14,497−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −14,042−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −13,574−100.0% | Sold out |
| Ascent Group, LLC | 0 | $0 | 0.00% | −11,753−100.0% | Sold out |
| CenterBook Partners LP | 0 | $0 | 0.00% | −10,808−100.0% | Sold out |
| Everence Capital Management Inc | 0 | $0 | 0.00% | −10,633−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −9,878−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −9,719−100.0% | Sold out |
| Integrity Alliance, LLC. | 0 | $0 | 0.00% | −9,566−100.0% | Sold out |
| Stratos Wealth Partners, LTD. | 0 | $0 | 0.00% | −9,318−100.0% | Sold out |
| CAPROCK Group, Inc. | 0 | $0 | 0.00% | −8,181−100.0% | Sold out |
| Altfest L J & Co Inc | 0 | $0 | 0.00% | −7,562−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −7,372−100.0% | Sold out |
| Advisors Preferred, LLC | 0 | $0 | 0.00% | −7,377−100.0% | Sold out |
| Enhancing Capital LLC | 0 | $0 | 0.00% | −7,030−100.0% | Sold out |
| Vise Technologies, Inc. | 0 | $0 | 0.00% | −6,972−100.0% | Sold out |
| Catalytic Wealth RIA, LLC | 0 | $0 | 0.00% | −6,716−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −6,526−100.0% | Sold out |
| Chesapeake Capital Corp | 0 | $0 | 0.00% | −6,194−100.0% | Sold out |
| NorthRock Partners, LLC | 0 | $0 | 0.00% | −6,001−100.0% | Sold out |
| 17 Capital Partners, LLC | 0 | $0 | 0.00% | −5,921−100.0% | Sold out |
| AXS Investments LLC | 0 | $0 | 0.00% | −5,867−100.0% | Sold out |
| Stevens Capital Management LP | 0 | $0 | 0.00% | −5,550−100.0% | Sold out |
| Brookstone Capital Management | 0 | $0 | 0.00% | −5,495−100.0% | Sold out |
| WSFS Capital Management, LLC | 0 | $0 | 0.00% | −5,474−100.0% | Sold out |
| World Equity Group, Inc. | 0 | $0 | 0.00% | −5,096−100.0% | Sold out |
| Voleon Capital Management LP | 0 | $0 | 0.00% | −4,866−100.0% | Sold out |