CSGPCoStar Group
CoStar Group is a leading provider of online real estate marketplaces, information, analytics, and 3D digital twin technology in the property markets. 10-K, Item 1
- Headquarters
- Arlington, VA
- CEO
- Andrew C. Florance
- Next results
- around Feb 23, 2027
Who owns CSGP
100% of the shares are held by institutions that file 13Fs; the rest by everyone else.
13F filings are quarterly and up to 45 days old. Insider trades: Form 4 rows coded P (bought) and S (sold) at a price, not grants or plan exercises.
13F: Chuck Akre added +13% in the quarter ending Jun 30, 2026.
Form 4: FLORANCE ANDREW C (President and CEO) bought $5.0M in the open market since 2026-04-01.
Institutional ownership 13F data can be up to 45 days old
Every 13F-HR filed for the quarter ending Jun 30, 2026, from SEC's Form 13F data sets. A 13F lists the long positions of managers with more than $100M in US stocks. Two managers can report the same shares, so totals can count some shares twice.
| Holder | Shares | Value | % of company | From Mar 31, 2026 |
|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC | 37.91M | $1.1B | 9.42% | Reduced -0.8% |
| BlackRock, Inc. | 33.81M | $957.6M | 8.40% | Held |
| VANGUARD CAPITAL MANAGEMENT LLC | 26.68M | $755.7M | 6.63% | Reduced -2.7% |
| BAMCO INC /NY/ | 21.63M | $612.5M | 5.38% | Added +32.6% |
| STATE STREET CORP | 18.41M | $521.4M | 4.58% | Reduced -1.3% |
| Capital International Investors | 16.64M | $471.3M | 4.14% | Added +7.3% |
| BAILLIE GIFFORD & CO | 13.15M | $372.5M | 3.27% | Reduced -3.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 12.17M | $343.3M | 3.02% | Reduced -2.3% |
| AKRE CAPITAL MANAGEMENT LLC | 11.70M | $331.3M | 2.91% | Added +13.1% |
| POLEN CAPITAL MANAGEMENT LLC | 8.76M | $248.1M | 2.18% | Reduced -30.3% |
| AQR CAPITAL MANAGEMENT LLC | 8.45M | $239.2M | 2.10% | Added +568.8% |
| Jupiter Topco LLC | 7.83M | $221.8M | 1.95% | New |
| Invesco Ltd. | 6.81M | $192.8M | 1.69% | Reduced -57.3% |
| EdgePoint Investment Group Inc. | 5.95M | $168.5M | 1.48% | New |
| NORGES BANK | 5.95M | $168.5M | 1.48% | New |
| MORGAN STANLEY | 5.49M | $155.4M | 1.36% | Added +1.4% |
| Meritage Group LP | 5.39M | $152.8M | 1.34% | Added +62.0% |
| GOLDMAN SACHS GROUP INC | 5.13M | $145.3M | 1.27% | Reduced -44.5% |
| JPMORGAN CHASE & CO | 4.94M | $145.4M | 1.23% | Added +167.1% |
| FEDERATED HERMES, INC. | 4.43M | $125.4M | 1.10% | Added +241.1% |
| Capital Research Global Investors | 4.19M | $118.8M | 1.04% | Reduced -4.1% |
| PRINCIPAL FINANCIAL GROUP INC | 3.79M | $107.4M | 0.94% | Reduced -78.6% |
| NORTHERN TRUST CORP | 3.45M | $97.7M | 0.86% | Held |
| Qube Research & Technologies Ltd | 3.22M | $91.1M | 0.80% | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 3.14M | $88.9M | 0.78% | Added +17.2% |
Bought the most shares
- Jupiter Topco LLC +7.83M, new
- AQR CAPITAL MANAGEMENT LLC +7.18M
- EdgePoint Investment Group Inc. +5.95M, new
- NORGES BANK +5.95M, new
- BAMCO INC /NY/ +5.31M
- Qube Research & Technologies Ltd +3.22M, new
- FEDERATED HERMES, INC. +3.13M
- JPMORGAN CHASE & CO +3.09M
- Meritage Group LP +2.07M
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/ +2.03M
Sold the most shares
- PRINCIPAL FINANCIAL GROUP INC -13.91M
- Invesco Ltd. -9.14M
- JANUS HENDERSON GROUP PLC -7.72M, sold out
- D. E. Shaw & Co., Inc. -4.87M
- GOLDMAN SACHS GROUP INC -4.12M
- POLEN CAPITAL MANAGEMENT LLC -3.81M
- TIGER GLOBAL MANAGEMENT LLC -1.50M, sold out
- MACKENZIE FINANCIAL CORP -1.48M
- Greenhouse Funds LLLP -1.38M, sold out
- CAPITOLIS LIQUID GLOBAL MARKETS LLC -1.35M, sold out
Superinvestors holding CSGP 13F data can be up to 45 days old
From the latest 13F-HR of each of the investors followed on Investors. A 13F shows holdings at the end of a quarter and is filed up to 45 days later.
| Investor | Quarter | Shares | Value | % of portfolio | Last quarter |
|---|---|---|---|---|---|
| Chuck Akre Akre Capital Management | Jun 30, 2026 | 11.70M | $331.3M | 6.49% | Added +13.1% |
| Polen Capital Polen Capital Management | Jun 30, 2026 | 8.76M | $248.1M | 2.29% | Reduced -30.3% |
| Wally Weitz Weitz Investment Management | Jun 30, 2026 | 423K | $12.0M | 0.89% | Reduced -18.1% |
Sold out last quarter: Chase Coleman
13D filings: owners of more than 5% who may push for change
No Schedule 13D about CSGP in the last year.
Work on CSGP in a spreadsheet:
Excel workbook (a sheet per section, ten years by column, charts, links to the filings) ·
CSV.
For a Google Sheet that stays up to date, paste =IMPORTDATA("https://tickdelta.com/company/CSGP/export.csv") into a cell.