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 2023
Institutional positions in Costar Group, Inc. as of Jun 30, 2023. 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
- 714
- +22 vs. Q1 2023
- Shares held
- 399.0M
- +10.1M (+2.6%) vs. Q1 2023
- Total value
- $35.5B
- +$8.71B (+32.6%) vs. Q1 2023
- New holders
- 91
- 265 more added
- Sold out
- 69
- 250 more reduced
Compare with Q1 2023: 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 2023
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 64,972,275 | $5.78B | 0.14% | +19,777,676+43.8% | Added |
| BlackRock Inc. | 32,124,231 | $2.86B | 0.08% | +206,764+0.6% | Added |
| Bamco Inc | 19,105,103 | $1.70B | 4.71% | +135,022+0.7% | Added |
| Principal Financial Group Inc | 19,046,923 | $1.70B | 1.16% | −229,787−1.2% | Reduced |
| State Street Corp | 15,311,558 | $1.36B | 0.07% | +290,864+1.9% | Added |
| Baillie Gifford & Co | 11,934,044 | $1.06B | 0.90% | −406,931−3.3% | Reduced |
| Massachusetts Financial Services Co | 11,370,445 | $1.01B | 0.33% | −172,104−1.5% | Reduced |
| Janus Henderson Group PLC | 11,071,542 | $985.4M | 0.61% | −2,009,764−15.4% | Reduced |
| Geode Capital Management, LLC | 10,899,062 | $968.0M | 0.11% | +1,085,038+11.1% | Added |
| Macquarie Group Ltd | 8,871,310 | $789.5M | 0.90% | +172,498+2.0% | Added |
| Sands Capital Management, LLC | 8,325,696 | $741.0M | 2.30% | −1,274,880−13.3% | Reduced |
| T. Rowe Price Investment Management, Inc. | 7,810,636 | $695.1M | 0.47% | +7,649+0.1% | Added |
| Akre Capital Management LLCSuperinvestorAkre Capital Management | 7,111,430 | $632.9M | 5.28% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 5,310,004 | $472.6M | 0.10% | +97,153+1.9% | Added |
| Artisan Partners Limited Partnership | 5,249,758 | $467.2M | 0.75% | +615,484+13.3% | Added |
| Norges Bank | 4,298,042 | $382.5M | 0.08% | −1,2660.0% | Reduced |
| Brown Advisory Inc | 4,284,245 | $381.3M | 0.60% | +1,536,162+55.9% | Added |
| Blair William & Co | 3,939,827 | $350.6M | 1.28% | +184,794+4.9% | Added |
| Ownership Capital B.V. | 3,907,967 | $347.8M | 6.09% | −117,237−2.9% | Reduced |
| Northern Trust Corp | 3,742,957 | $333.1M | 0.06% | −117,291−3.0% | Reduced |
| Bank of America Corp | 3,659,002 | $325.7M | 0.04% | −803,620−18.0% | Reduced |
| Invesco Ltd. | 3,408,531 | $303.4M | 0.08% | +1,098,883+47.6% | Added |
| Ameriprise Financial Inc | 3,297,404 | $293.5M | 0.09% | −576,014−14.9% | Reduced |
| Capital International Investors | 3,055,291 | $271.9M | 0.07% | −8060.0% | Reduced |
| American Century Companies Inc | 2,935,380 | $261.2M | 0.20% | −470,362−13.8% | Reduced |
| Wellington Management Group LLP | 2,917,957 | $259.7M | 0.05% | +1,013,035+53.2% | Added |
| Price T Rowe Associates Inc | 2,843,964 | $253.1M | 0.04% | −103,308−3.5% | Reduced |
| Farallon Capital Management, L.L.C. | 2,751,056 | $244.8M | 1.46% | −660,129−19.4% | Reduced |
| Vulcan Value Partners, LLC | 2,662,708 | $236.8M | 2.97% | −432,262−14.0% | Reduced |
| Franklin Resources Inc | 2,641,676 | $235.1M | 0.11% | −4,511,955−63.1% | Reduced |
| Riverbridge Partners LLC | 2,567,355 | $228.5M | 2.88% | +81,068+3.3% | Added |
| Charles Schwab Investment Management Inc | 2,366,642 | $210.6M | 0.06% | +15,139+0.6% | Added |
| Legal & General Group Plc | 2,330,507 | $207.4M | 0.07% | −14,144−0.6% | Reduced |
| Mackenzie Financial Corp | 2,343,544 | $205.1M | 0.31% | −208,534−8.2% | Reduced |
| Federated Hermes, Inc. | 2,222,392 | $197.8M | 0.49% | −375,763−14.5% | Reduced |
| Echo Street Capital Management LLC | 2,178,712 | $193.9M | 1.66% | −520,927−19.3% | Reduced |
| William Blair Investment Management, LLC | 2,156,525 | $191.9M | 0.62% | −338,863−13.6% | Reduced |
| DF Dent & Co Inc | 2,138,399 | $190.3M | 2.58% | −66,608−3.0% | Reduced |
| Bares Capital Management, Inc. | 2,092,627 | $186.2M | 6.44% | −8,431−0.4% | Reduced |
| Harding Loevner LP | 2,010,559 | $178.9M | 1.04% | −385,224−16.1% | Reduced |
| Morgan Stanley | 1,937,254 | $172.4M | 0.02% | +6,639+0.3% | Added |
| Ensign Peak Advisors, Inc | 1,729,087 | $153.9M | 0.31% | +53,520+3.2% | Added |
| Goldman Sachs Group Inc | 1,716,378 | $152.8M | 0.04% | +336,881+24.4% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,553,418 | $138.3M | 0.43% | +416,812+36.7% | Added |
| Swiss National Bank | 1,469,200 | $130.8M | 0.09% | −144,800−9.0% | Reduced |
| Envestnet Asset Management Inc | 1,423,645 | $126.7M | 0.06% | +9,313+0.7% | Added |
| RGM Capital, LLC | 1,400,756 | $124.7M | 5.56% | +24,502+1.8% | Added |
| Capital Research Global Investors | 1,344,453 | $119.7M | 0.03% | +6220.0% | Added |
| CIBC Private Wealth Group, LLC | 1,293,724 | $115.1M | 0.25% | +128,579+11.0% | Added |
| Findlay Park Partners LLP | 1,263,178 | $112.4M | 1.15% | −1,118,948−47.0% | Reduced |
| Dimensional Fund Advisors LP | 1,220,779 | $108.7M | 0.03% | +71,993+6.3% | Added |
| Putnam Investments LLC | 1,192,695 | $106.1M | 0.16% | +1,903+0.2% | Added |
| SEI Investments Co | 1,147,670 | $102.1M | 0.18% | +195,185+20.5% | Added |
| Nuveen Asset Management, LLC | 1,145,477 | $101.9M | 0.04% | +12,543+1.1% | Added |
| Baird Financial Group, Inc. | 1,139,207 | $101.4M | 0.27% | +213,022+23.0% | Added |
| Marshall Wace, LLP | 1,117,914 | $99.5M | 0.21% | −499,266−30.9% | Reduced |
| Victory Capital Management Inc | 1,095,970 | $97.5M | 0.11% | −5,010−0.5% | Reduced |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 1,068,000 | $95.1M | 5.07% | −32,800−3.0% | Reduced |
| Eagle Asset Management Inc | 1,066,845 | $94.9M | 0.53% | +227,396+27.1% | Added |
| Kayne Anderson Rudnick Investment Management LLC | 1,054,969 | $93.9M | 0.26% | −24,364−2.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,021,315 | $90.9M | 0.07% | −152,574−13.0% | Reduced |
| UBS Asset Management Americas Inc | 1,237,774 | $85.2M | 0.04% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 957,311 | $85.2M | 0.14% | +199,144+26.3% | Added |
| Chicago Capital, LLC | 920,305 | $81.9M | 3.69% | −4,531−0.5% | Reduced |
| TimesSquare Capital Management, LLC | 910,801 | $81.1M | 1.16% | −8,385−0.9% | Reduced |
| National Pension Service | 893,480 | $80.5M | 0.13% | +24,497+2.8% | Added |
| Pictet Asset Management SA | 900,519 | $80.1M | 0.10% | −46,313−4.9% | Reduced |
| Westfield Capital Management Co LP | 863,471 | $76.8M | 0.49% | −18,306−2.1% | Reduced |
| Ci Investments Inc. | 857,990 | $76.4M | 0.39% | −16,373−1.9% | Reduced |
| Wells Fargo & Company | 852,857 | $75.9M | 0.02% | −2990.0% | Reduced |
| Rathbone Brothers plc | 838,214 | $74.6M | 0.70% | +11,331+1.4% | Added |
| Barclays PLC | 834,383 | $74.3M | 0.05% | +400,131+92.1% | Added |
| American Capital Management Inc | 833,521 | $74.2M | 2.58% | −7,959−0.9% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 830,245 | $73.9M | 0.17% | −23,395−2.7% | Reduced |
| Royal Bank of Canada | 796,707 | $70.9M | 0.02% | +156,391+24.4% | Added |
| Amundi | 807,681 | $70.7M | 0.04% | −63,165−7.3% | Reduced |
| Granahan Investment Management Inc | 791,468 | $70.4M | 2.17% | −3,475−0.4% | Reduced |
| UBS Group AG | 788,619 | $70.2M | 0.03% | +322,422+69.2% | Added |
| Rhumbline Advisers | 786,255 | $70.0M | 0.08% | +39,125+5.2% | Added |
| Beck Mack & Oliver LLC | 784,611 | $69.8M | 1.82% | +3,104+0.4% | Added |
| FMR LLC | 767,173 | $68.3M | 0.01% | +43,030+5.9% | Added |
| California Public Employees Retirement System | 748,919 | $66.7M | 0.06% | −26,110−3.4% | Reduced |
| STRS Ohio | 729,000 | $64.9M | 0.27% | −91,000−11.1% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 722,149 | $64.3M | 0.13% | +114,046+18.8% | Added |
| JPMorgan Chase & Co | 688,859 | $61.3M | 0.01% | −191,680−21.8% | Reduced |
| APG Asset Management N.V. | 749,140 | $61.1M | 0.12% | −15,517−2.0% | Reduced |
| TD Asset Management Inc | 682,703 | $60.8M | 0.07% | −13,339−1.9% | Reduced |
| California State Teachers Retirement System | 659,604 | $58.7M | 0.08% | −15,523−2.3% | Reduced |
| Peregrine Capital Management LLC | 654,774 | $58.3M | 1.59% | −4,726−0.7% | Reduced |
| Jane Street Group, LLC | 629,243 | $56.0M | 0.08% | +595,163+1,746.4% | Added |
| Pelham Capital Ltd. | 621,195 | $55.3M | 19.04% | +621,195 | New |
| Raymond James & Associates | 606,750 | $54.0M | 0.04% | −22,562−3.6% | Reduced |
| Quantum Capital Management, LLC | 564,120 | $50.2M | 6.06% | −22,928−3.9% | Reduced |
| Russell Investments Group, Ltd. | 561,587 | $50.0M | 0.10% | −40,668−6.8% | Reduced |
| New York State Common Retirement Fund | 561,741 | $50.0M | 0.06% | +3,329+0.6% | Added |
| Alliancebernstein L.P. | 543,253 | $48.3M | 0.02% | +48,964+9.9% | Added |
| Stephens Investment Management Group LLC | 539,983 | $48.1M | 0.75% | −6,688−1.2% | Reduced |
| Deutsche Bank AG | 539,542 | $48.0M | 0.03% | −26,164−4.6% | Reduced |
| Clearbridge Investments, LLC | 528,374 | $47.0M | 0.04% | −3,127−0.6% | Reduced |
| Millennium Management LLC | 506,712 | $45.1M | 0.05% | +496,318+4,775.0% | Added |