CoStar CEO Purchases $2.5M Shares, Stock Rises

Insider Purchase Highlights

The filing disclosed that CoStar Group, Inc. (NASDAQ:CSGP) founder and chief executive officer Andrew Florance acquired $2.5 million worth of company stock on August 4, 2026. Florance bought 83,300 shares at $29.89 per share, increasing his total holding to 1,806,165 shares. Following the disclosure, CoStar shares edged up 0.5% in early trading on Wednesday. The stock, however, remains down 56% year‑to‑date.