Costar Group, Inc. (CSGP) — Insider Trading Activity

Costar Group, Inc. (CSGP) has 91 insider transactions on record, including 6 open-market purchases and 9 sales by company executives and directors. The most recent transaction was filed on 2026-05-01 by Florance Andrew C. The largest single transaction was a sale of $ 3.15M by Florance Andrew C.