Saint Frederick G. Sells Shares of CoStar Group, Inc.

On August 1, 2025, Saint Frederick G., President of Marketplaces at CoStar Group, Inc., sold 1,436 shares of the company's common stock at a price of $95.19 per share. Following this transaction, Saint Frederick G. owns 318,103 shares of CoStar Group, Inc. The transaction was reported in a Form 4 filing with the SEC. This sale represents a disposition of shares by an officer of the company.