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 |
|---|---|---|---|---|---|
| Signature Resources Capital Management, LLC | 50 | $1.42K | 0.00% | 00.0% | Unchanged |
| Valued Wealth Advisors LLC | 50 | $1.42K | 0.00% | 00.0% | Unchanged |
| Rakuten Securities, Inc. | 50 | $1.42K | 0.00% | 00.0% | Unchanged |
| West Paces Advisors Inc. | 50 | $1.42K | 0.00% | +50 | New |
| JPL Wealth Management, LLC | 49 | $1.39K | 0.00% | −55−52.9% | Reduced |
| High Note Wealth, LLC | 43 | $1.22K | 0.00% | +43 | New |
| Country Trust Bank | 41 | $1.16K | 0.00% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 41 | $1.16K | 0.00% | +16+64.0% | Added |
| Wolff Wiese Magana LLC | 40 | $1.13K | 0.00% | +40 | New |
| Activest Wealth Management | 39 | $1.10K | 0.00% | −10−20.4% | Reduced |
| Cornerstone Financial Management LLC | 38 | $1.08K | 0.00% | −21−35.6% | Reduced |
| CKW Financial Group | 20 | $1.00K | 0.00% | 00.0% | Unchanged |
| UMA Financial Services, Inc. | 35 | $992 | 0.00% | +35 | New |
| Graney & King, LLC | 35 | $991 | 0.00% | 00.0% | Unchanged |
| IFG Advisory, LLC | 34 | $963 | 0.00% | +34 | New |
| Bare Financial Services, Inc | 33 | $935 | 0.00% | +33 | New |
| N.E.W. Advisory Services LLC | 30 | $850 | 0.00% | 00.0% | Unchanged |
| PayPay Securities Corp | 30 | $850 | 0.03% | +7+30.4% | Added |
| Creative Financial Designs Inc | 30 | $850 | 0.00% | +30 | New |
| Purpose Unlimited Inc. | 30 | $849 | 0.00% | 00.0% | Unchanged |
| Hughes Financial Services, LLC | 27 | $765 | 0.00% | +15+125.0% | Added |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 25 | $707 | 0.00% | 00.0% | Unchanged |
| Ameriflex Group, Inc. | 24 | $680 | 0.00% | +23+2,300.0% | Added |
| Creative Capital Management Investments LLC | 22 | $623 | 0.00% | +22 | New |
| Proathlete Wealth Management LLC | 21 | $594 | 0.00% | 00.0% | Unchanged |
| 1015 Capital Partners, LLC | 20 | $566 | 0.00% | +17+566.7% | Added |
| First Horizon Corp | 19 | $538 | 0.00% | −39−67.2% | Reduced |
| TFC Financial Management | 18 | $510 | 0.00% | +16+800.0% | Added |
| NVWM, LLC | 17 | $482 | 0.00% | −10−37.0% | Reduced |
| Highline Wealth Partners LLC | 16 | $453 | 0.00% | +4+33.3% | Added |
| MidFirst Bank | 15 | $425 | 0.00% | +13+650.0% | Added |
| Strengthening Families & Communities, LLC | 15 | $425 | 0.00% | +15 | New |
| Caitlin John, LLC | 12 | $340 | 0.00% | 00.0% | Unchanged |
| Valley National Advisers Inc | 11 | $312 | 0.00% | +11 | New |
| Acumen Wealth Advisors, LLC | 10 | $284 | 0.00% | +10 | New |
| Global Trust Asset Management, LLC | 10 | $283 | 0.00% | 00.0% | Unchanged |
| Key Financial Inc | 10 | $283 | 0.00% | 00.0% | Unchanged |
| Motco | 10 | $283 | 0.00% | +10 | New |
| Decker Retirement Planning Inc. | 10 | $283 | 0.00% | +10 | New |
| Dunhill Financial, LLC | 7 | $224 | 0.00% | −18−72.0% | Reduced |
| American Capital Advisory, LLC | 7 | $199 | 0.00% | 00.0% | Unchanged |
| Montgomery Financial Services LLC | 6 | $170 | 0.00% | +6 | New |
| Cassaday & Co Wealth Management LLC | 5 | $142 | 0.00% | −15−75.0% | Reduced |
| United Community Bank | 5 | $142 | 0.00% | 00.0% | Unchanged |
| S&T Bank | 5 | $142 | 0.00% | +5 | New |
| DecisionPoint Financial, LLC | 4 | $118 | 0.00% | 00.0% | Unchanged |
| DiNuzzo Private Wealth, Inc. | 4 | $114 | 0.00% | −6−60.0% | Reduced |
| CDKV Holdings LLC | 4 | $114 | 0.00% | 00.0% | Unchanged |
| Vision Financial Markets LLC | 3 | $89 | 0.00% | 00.0% | Unchanged |
| E Fund Management (Hong Kong) Co., Ltd. | 3 | $85 | 0.00% | −1,550−99.8% | Reduced |
| Kingdom Financial Group LLC. | 3 | $85 | 0.00% | 00.0% | Unchanged |
| 3 Factor Indexing, LLC | 3 | $85 | 0.00% | +1+50.0% | Added |
| Buck Wealth Strategies, LLC | 3 | $85 | 0.00% | +3 | New |
| Grove Bank & Trust | 2 | $57 | 0.00% | −9,992−100.0% | Reduced |
| Medallion Wealth Advisors, LLC | 2 | $57 | 0.00% | +2 | New |
| JFS Wealth Advisors, LLC | 1 | $29 | 0.00% | −29−96.7% | Reduced |
| Maryland Capital Advisors Inc. | 1 | $29 | 0.00% | +1 | New |
| Bay Harbor Wealth Management, LLC | 1 | $28 | 0.00% | −4−80.0% | Reduced |
| Eastern Bank | 1 | $28 | 0.00% | 00.0% | Unchanged |
| Evolution Advisers, Inc. | 1 | $0 | 0.00% | +1 | New |
| Tiger Global Management LLCSuperinvestorTiger Global Management | 0 | $0 | 0.00% | −1,500,000−100.0% | Sold out |
| Greenhouse Funds LLLP | 0 | $0 | 0.00% | −1,377,305−100.0% | Sold out |
| Capitolis Liquid Global Markets LLC | 0 | $0 | 0.00% | −1,355,000−100.0% | Sold out |
| Stephens Investment Management Group LLC | 0 | $0 | 0.00% | −872,463−100.0% | Sold out |
| Corvex Management LP | 0 | $0 | 0.00% | −851,734−100.0% | Sold out |
| TimesSquare Capital Management, LLC | 0 | $0 | 0.00% | −795,580−100.0% | Sold out |
| Weiss Asset Management LP | 0 | $0 | 0.00% | −497,500−100.0% | Sold out |
| Northwood Liquid Management LP | 0 | $0 | 0.00% | −483,200−100.0% | Sold out |
| ShawSpring Partners LLC | 0 | $0 | 0.00% | −339,081−100.0% | Sold out |
| Foster Victor Wealth Advisors, LLC | 0 | $0 | 0.00% | −340,762−100.0% | Sold out |
| BSN Capital Partners Ltd | 0 | $0 | 0.00% | −150,857−100.0% | Sold out |
| Mizuho Markets Americas LLC | 0 | $0 | 0.00% | −275,876−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −252,950−100.0% | Sold out |
| Nicholas Company, Inc. | 0 | $0 | 0.00% | −214,294−100.0% | Sold out |
| Ycg, LLC | 0 | $0 | 0.00% | −195,980−100.0% | Sold out |
| Cortland Associates Inc | 0 | $0 | 0.00% | −181,019−100.0% | Sold out |
| Tredje AP-fonden | 0 | $0 | 0.00% | −161,654−100.0% | Sold out |
| Granahan Investment Management Inc | 0 | $0 | 0.00% | −161,047−100.0% | Sold out |
| Motley Fool Wealth Management, LLC | 0 | $0 | 0.00% | −153,002−100.0% | Sold out |
| EVR Research LP | 0 | $0 | 0.00% | −130,000−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −101,423−100.0% | Sold out |
| GF Fund Management Co. Ltd. | 0 | $0 | 0.00% | −86,853−100.0% | Sold out |
| Solidarilty Wealth, LLC | 0 | $0 | 0.00% | −81,303−100.0% | Sold out |
| USS Investment Management Ltd | 0 | $0 | 0.00% | −78,020−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −74,431−100.0% | Sold out |
| Blue Zone Wealth Advisors, LLC | 0 | $0 | 0.00% | −71,468−100.0% | Sold out |
| Americana Partners, LLC | 0 | $0 | 0.00% | −57,568−100.0% | Sold out |
| iA Global Asset Management Inc. | 0 | $0 | 0.00% | −50,393−100.0% | Sold out |
| Shelton Capital Management | 0 | $0 | 0.00% | −48,672−100.0% | Sold out |
| Profund Advisors LLC | 0 | $0 | 0.00% | −32,545−100.0% | Sold out |
| Harvest Fund Management Co., Ltd | 0 | $0 | 0.00% | −31,007−100.0% | Sold out |
| PEAK6 LLC | 0 | $0 | 0.00% | −26,037−100.0% | Sold out |
| Aurora Investment Managers, LLC. | 0 | $0 | 0.00% | −22,187−100.0% | Sold out |
| ASR Vermogensbeheer N.V. | 0 | $0 | 0.00% | −21,936−100.0% | Sold out |
| Commerce Bank | 0 | $0 | 0.00% | −20,452−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −16,861−100.0% | Sold out |
| Osmosis Investment Management UK Ltd | 0 | $0 | 0.00% | −16,392−100.0% | Sold out |
| Farringdon Capital, Ltd. | 0 | $0 | 0.00% | −15,697−100.0% | Sold out |
| PKO Investment Management Joint-Stock Co | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| E Fund Management Co., Ltd. | 0 | $0 | 0.00% | −14,915−100.0% | Sold out |