Costar Group, Inc.
CSGP- Exchange
- Nasdaq
- Industry
- Services-Business Services, NEC
- SEC CIK
- 0001057352
No open-market purchases or sales by Costar Group, Inc. insiders were filed in the last 90 days; 764 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
Q3 2026 data is still coming in: 387 institutions have reported holding CSGP so far. See Q3 2026
- Institutional holders
- 764
- −29 vs. Q1 2026
- Shares held
- 414.0M
- +5.89M (+1.4%) vs. Q1 2026
- Total value
- $11.7B
- −$4.74B (−28.8%) vs. Q1 2026
- New holders
- 114
- 304 more added
- Sold out
- 143
- 270 more reduced
8 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 | 764 | $11.7B |
| Q1 2026 | 801 | $16.8B |
| Q4 2025 | 851 | $28.4B |
| Q3 2025 | 909 | $34.9B |
| Q2 2025 | 876 | $34.2B |
| Q1 2025 | 861 | $33.9B |
| Q4 2024 | 808 | $28.9B |
| Q3 2024 | 775 | $30.0B |
| Q2 2024 | 768 | $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 |
|---|---|---|---|---|---|
| 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 |
| Ameritas Investment Partners, Inc. | 3,643 | $103.2K | 0.00% | −15,387−80.9% | Reduced |
| Group One Trading, L.P. | 3,849 | $109.0K | 0.00% | +3,849 | New |
| IFP Advisors, Inc | 3,968 | $112.4K | 0.00% | +2,361+146.9% | Added |
| Canada Post Corp Registered Pension Plan | 4,170 | $118.1K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 4,451 | $126.1K | 0.00% | +4,451 | New |
| Prestige Wealth Management Group LLC | 4,603 | $130.4K | 0.02% | −1,423−23.6% | Reduced |
| Parkside Financial Bank & Trust | 4,935 | $139.8K | 0.01% | +679+16.0% | Added |
| Farther Finance Advisors, LLC | 5,711 | $162.0K | 0.00% | +3,161+124.0% | Added |
| Umb Bank N A | 5,784 | $163.8K | 0.00% | −8,685−60.0% | Reduced |
| Siemens Fonds Invest GmbH | 5,942 | $168.3K | 0.01% | 00.0% | Unchanged |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 6,127 | $173.5K | 0.00% | −14,477−70.3% | Reduced |
| Blue Sparrow, LLC | 6,160 | $174.5K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 6,779 | $192.0K | 0.02% | +6,779 | New |
| Caden Capital Partners, LP | 6,821 | $193.2K | 2.33% | +2,000+41.5% | Added |
| Larson Financial Group LLC | 6,918 | $195.9K | 0.01% | −6,667−49.1% | Reduced |
| Nisa Investment Advisors, LLC | 7,055 | $199.8K | 0.00% | −35,569−83.4% | Reduced |
| EverSource Wealth Advisors, LLC | 7,157 | $202.7K | 0.01% | +4,436+163.0% | Added |
| Icon Wealth Advisors, LLC | 7,217 | $204.4K | 0.01% | −296−3.9% | Reduced |
| TCG Advisory Services, LLC | 7,251 | $205.3K | 0.00% | +7,251 | New |
| Beese Fulmer Investment Management, Inc. | 7,259 | $205.6K | 0.01% | +7,259 | New |
| Baker Tilly Wealth Management, LLC | 7,317 | $207.2K | 0.04% | +1,242+20.4% | Added |
| Syon Capital LLC | 7,326 | $207.5K | 0.01% | +1,526+26.3% | Added |
| Chicago Trust Co NA | 7,390 | $209.3K | 0.03% | −750−9.2% | Reduced |
| Arrowpoint Investment Partners (Singapore) Pte. Ltd. | 7,425 | $210.3K | 0.06% | +7,425 | New |
| GAMMA Investing LLC | 7,605 | $215.4K | 0.01% | −1,362−15.2% | Reduced |
| Vontobel Holding Ltd. | 7,690 | $217.8K | 0.00% | +1,400+22.3% | Added |
| VestGen Advisors, LLC | 7,704 | $218.2K | 0.01% | +7,704 | New |
| Mount Yale Investment Advisors, LLC | 7,721 | $218.7K | 0.00% | +7,721 | New |
| Panagora Asset Management Inc | 7,808 | $221.1K | 0.00% | +7,808 | New |
| GTS Securities LLC | 7,889 | $223.4K | 0.00% | +1,903+31.8% | Added |
| V-Square Quantitative Management LLC | 8,267 | $234.1K | 0.02% | +2,062+33.2% | Added |
| Rockefeller Capital Management L.P. | 8,322 | $235.7K | 0.00% | +2,251+37.1% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 8,312 | $235.9K | 0.00% | −5,305−39.0% | Reduced |
| Stevens Capital Management LP | 8,321 | $236.0K | 0.06% | +8,321 | New |
| Fideuram - Intesa Sanpaolo Private Banking S.P.A. | 8,346 | $236.4K | 0.01% | +2,847+51.8% | Added |
| Castleview Partners, LLC | 8,398 | $237.8K | 0.10% | +386+4.8% | Added |
| Potomac Fund Management Inc | 8,451 | $239.3K | 0.01% | −936−10.0% | Reduced |
| Plato Investment Management Ltd | 8,565 | $241.1K | 0.01% | 00.0% | Unchanged |
| Nicolet Bankshares Inc | 8,442 | $242.3K | 0.01% | −1,353−13.8% | Reduced |
| Hantz Financial Services, Inc. | 8,689 | $246.0K | 0.00% | +3,905+81.6% | Added |
| Perigon Wealth Management, LLC | 8,716 | $246.8K | 0.00% | +2,619+43.0% | Added |
| Empirical Finance, LLC | 8,770 | $248.4K | 0.01% | +545+6.6% | Added |
| Caitong International Asset Management Co., Ltd | 8,810 | $249.5K | 0.03% | −4,489−33.8% | Reduced |
| Tema ETFs LLC | 8,914 | $252.4K | 0.01% | +1,378+18.3% | Added |
| Penserra Capital Management LLC | 9,017 | $253.0K | 0.00% | +3,130+53.2% | Added |
| Vestcor Inc | 8,956 | $254.0K | 0.01% | 00.0% | Unchanged |
| Laird Norton Trust Company, LLC | 8,998 | $254.8K | 0.00% | −195−2.1% | Reduced |
| Connable Office Inc | 9,000 | $254.9K | 0.02% | 00.0% | Unchanged |
| Essential Partners LLC | 9,008 | $255.1K | 0.12% | +8,914+9,483.0% | Added |
| Blueshift Asset Management, LLC | 9,017 | $255.4K | 0.06% | +2,032+29.1% | Added |
| PFG Investments, LLC | 9,091 | $257.5K | 0.01% | +9,091 | New |
| Ostrum Asset Management | 9,234 | $261.5K | 0.01% | +4,463+93.5% | Added |
| GraniteShares Advisors LLC | 9,293 | $263.2K | 0.17% | +9,293 | New |
| New Age Alpha Advisors, LLC | 9,331 | $264.3K | 0.01% | −34,331−78.6% | Reduced |
| Hills Bank & Trust Co | 9,345 | $264.6K | 0.01% | −89−0.9% | Reduced |
| Balyasny Asset Management LLC | 9,349 | $264.8K | 0.00% | +3,023+47.8% | Added |
| Counterpoint Mutual Funds LLC | 9,365 | $265.2K | 0.03% | +9,365 | New |
| Mather Group, LLC. | 9,524 | $269.7K | 0.00% | +7,354+338.9% | Added |
| R Squared Ltd | 9,562 | $270.8K | 0.14% | +9,562 | New |
| STRS Ohio | 9,724 | $275.4K | 0.00% | −71,264−88.0% | Reduced |
| Inscription Capital, LLC | 9,745 | $276.0K | 0.02% | +9,745 | New |
| Sentinus, LLC | 9,778 | $276.9K | 0.02% | +1,337+15.8% | Added |
| Gibbs Wealth Management | 9,814 | $277.9K | 0.03% | −15,600−61.4% | Reduced |
| Miracle Mile Advisors, LLC | 9,829 | $278.4K | 0.00% | −1,654−14.4% | Reduced |
| Quinn Opportunity Partners LLC | 10,000 | $283.2K | 0.01% | +10,000 | New |
| AlphaCore Capital LLC | 10,037 | $284.2K | 0.01% | +10,037 | New |
| Storebrand Asset Management AS | 10,081 | $285.5K | 0.00% | −25,997−72.1% | Reduced |
| Huntington National Bank | 10,405 | $294.7K | 0.00% | +3,091+42.3% | Added |
| Pensionmark Financial Group, LLC | 7,388 | $295.0K | 0.00% | +67+0.9% | Added |
| RMB Capital Management, LLC | 10,498 | $297.3K | 0.00% | +10,498 | New |
| Dorsey & Whitney Trust CO LLC | 10,539 | $298.5K | 0.01% | +10,539 | New |
| FIL Ltd | 10,580 | $299.6K | 0.00% | −329,052−96.9% | Reduced |
| Quarry LP | 10,631 | $301.1K | 0.05% | +7,428+231.9% | Added |
| Perennial Investment Advisors, LLC | 10,632 | $301.1K | 0.02% | +476+4.7% | Added |
| Hillman Capital Management, Inc. | 10,745 | $304.3K | 0.22% | +2,188+25.6% | Added |
| Intech Investment Management LLC | 10,797 | $305.8K | 0.00% | 00.0% | Unchanged |
| Wahed Invest LLC | 10,798 | $305.8K | 0.03% | +152+1.4% | Added |
| Motley Fool Asset Management LLC | 10,847 | $307.2K | 0.01% | +3,759+53.0% | Added |
| Meeder Advisory Services, Inc. | 10,849 | $307.2K | 0.01% | +10,849 | New |
| Gilbert & Cook, Inc. | 10,873 | $307.9K | 0.04% | +195+1.8% | Added |
| Kentucky Retirement Systems Insurance Trust Fund | 10,940 | $309.8K | 0.02% | −49−0.4% | Reduced |
| Sterling Capital Management LLC | 11,145 | $315.6K | 0.01% | −4,863−30.4% | Reduced |
| Premier Path Wealth Partners, LLC | 11,265 | $319.0K | 0.04% | −2,363−17.3% | Reduced |
| Caerus Investment Advisors, LLC | 11,307 | $320.2K | 0.11% | +11,307 | New |
| O'Shaughnessy Asset Management, LLC | 11,371 | $322.0K | 0.00% | −9,167−44.6% | Reduced |
| Securian Asset Management, Inc | 10,851 | $323.1K | 0.01% | −573−5.0% | Reduced |
| Brown Brothers Harriman & Co | 11,433 | $323.8K | 0.00% | +3,995+53.7% | Added |
| Postrock Partners LLC | 11,440 | $324.0K | 0.13% | 00.0% | Unchanged |
| Warren Averett Asset Management, LLC | 11,445 | $324.1K | 0.00% | +11,445 | New |
| Aigen Investment Management, LP | 11,644 | $329.8K | 0.09% | −805−6.5% | Reduced |
| Unique Wealth Strategies, LLC | 11,759 | $333.0K | 0.12% | −5,011−29.9% | Reduced |
| Callan Family Office, LLC | 11,764 | $333.1K | 0.01% | −4,573−28.0% | Reduced |
| Baird Financial Group, Inc. | 11,769 | $333.3K | 0.00% | +1,033+9.6% | Added |
| GWM Advisors LLC | 11,879 | $336.4K | 0.00% | +11,377+2,266.3% | Added |
| Simplicity Wealth,LLC | 11,922 | $337.6K | 0.01% | +11,922 | New |
| Guggenheim Capital LLC | 11,963 | $338.8K | 0.00% | −76,421−86.5% | Reduced |
| Aster Capital Management (DIFC) Ltd | 11,992 | $339.6K | 0.07% | +11,992 | New |