COSTAR GROUP INC (CSGP) Institutional Ownership

CSGP is currently held by 8 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $979.35M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.

The largest disclosed holder is Akre Capital Management, which reported ownership valued at approximately $417.45M in its March 31, 2026 13F filing. Based on current market prices and the latest disclosed share count, Akre Capital Management's CSGP position is now estimated to be worth approximately $312.93M, representing an estimated loss of -25.04% since the filing period.

Major shareholders tracked on this page include Akre Capital Management, Polen Capital Management, Meritage Group, and other prominent asset managers. Collectively, these investors account for approximately 98% of the total disclosed value among the investors covered in this analysis.

This page tracks disclosed ownership trends, hedge fund exposure, portfolio concentration, historical 13F filings, and estimated holding performance to help investors analyze smart money sentiment toward COSTAR GROUP INC (CSGP).