Public filings / CSGP on Yahoo Finance (opens in a new tab)
CSGP: insider buying, 13F holders, analyst moves
Costar Group Inc - US
A summary of public filings about Costar Group Inc - US. For the latest insider history, price chart, analyst changes and activist filings, open the live lookup.
SEC Form 13F · Q2 2026
4 of our 100 managers hold CSGP
Combined reported value $609.1M; 2 sold out since Q1 2026.
Holders among our 100 managers: 4 in Q3 2023, 4 in Q2 2026.
| Manager | Value | % of portfolio | Change vs Q1 2026 |
|---|---|---|---|
| Akre Capital Management | $331.3M | 6.49% | Added |
| Polen Capital | $248.1M | 2.14% | Trimmed |
| Tudor Investment | $17.8M | 0.07% | Added |
| Weitz Investment | $12.0M | 0.83% | Trimmed |
Important information
Facts from public SEC filings, shown for information only. Not a recommendation. Not individualized investment advice. Gulfstream Capital and its clients may hold positions in securities shown.