DOSSIER · 13F Holders · Q1 2026
COSTAR GROUP INC
8 institutions still hold COSTAR GROUP INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 22160N909·8 13F holders·last filed Mar 31, 2026
AI Holders Summary · Q1 2026
8 institutions reported COSTAR GROUP INC in Q1 2026. LANDMARK INVESTMENT PARTNERS, L.P. leads at 34.2% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.