Costar Group, INC Form 4 insider transactions

Michael J. Desmarais, Chief Human Resources Officer at Costar Group, acquired 9,026 shares of common stock through the company's Management Stock Purchase Plan.

Lisa Ruggles, Senior VP of Global Operations at CoStar Group, reports the disposal of 7,410 shares of common stock to cover tax obligations.

Michael Desmarais, Chief Human Resources Officer of Costar Group, reports acquisition and disposal of company stock.

Frederick G. Saint, President of Marketplaces at CoStar Group, disposed of 8,252 shares of common stock on March 1, 2025, to cover tax obligations.

Cynthia Cammett Cann, Chief Accounting Officer of Costar Group, reports acquisition and disposal of company stock.

Gene Boxer, General Counsel and Secretary of Costar Group, Inc., reports acquisition and disposal of common stock in recent transactions.

Andrew Florance, President and CEO of CoStar Group, sold 41,296 shares of common stock on March 1, 2025, to cover tax obligations.

Frank Simuro, Chief Technology Officer of CoStar Group, disposed of 12,432 shares of common stock on March 1, 2025, at a price of $76.25 per share.

Christian M. Lown, CFO of CoStar Group, reports the acquisition of restricted stock and stock options.

Andrew Florance, CEO of CoStar Group, reports the forfeiture and acquisition of company stock and options.

Lisa Ruggles, Senior VP of Global Operations at CoStar Group, reports transactions involving company stock, including forfeitures, acquisitions, and option grants.

Frank Simuro, Chief Technology Officer of CoStar Group, reports the forfeiture and acquisition of company stock and options.

Frederick G. Saint, President of Marketplaces at CoStar Group, reports the forfeiture and acquisition of company stock and options.

Frank Simuro, Chief Technology Officer of CoStar Group, sold shares to cover tax obligations arising from vested stock.

Lisa Ruggles, Senior VP of Global Operations at CoStar Group, disposed of 3,531 shares of common stock on February 15, 2025, to cover tax obligations arising from equity awards.

Andrew Florance, President and CEO of CoStar Group, reports the disposition of 14,235 shares of common stock to cover tax obligations.

Frederick G. Saint, President of Marketplaces at CoStar Group, disposed of 2,349 shares of common stock on February 15, 2025, to satisfy tax withholding obligations.

Director John W. Hill of Costar Group, Inc. reported the sale of 2,735 shares and a gift of 195 shares of common stock on December 10, 2024.

Director Michael Klein of Costar Group, Inc. acquired 64,909 shares of common stock through a grant on December 10, 2024.

Christopher J. Nassetta, a director at Costar Group, sold 1,681 shares of common stock at an average price of $80.39 on November 27, 2024.

Michael J. Desmarais, Chief Human Resources Officer at Costar Group, sold 5,500 shares of common stock at an average price of $79.88.

Director Michael Klein reported the sale of 71,633 shares of CoStar Group, Inc. at an average price of $74.69 on October 25, 2024.

Andrew Florance, CEO of CoStar Group, recently purchased 14,731.03 shares of common stock at an average price of $74.67 per share.

Director Michael Klein reported a transaction involving CoStar Group, Inc. shares on July 17, 2024.

Angelique G. Brunner, a director of CoStar Group, Inc., reported acquiring 3,491 shares of common stock and disposing of 7,023 shares on July 17, 2024.

Director Sams Louise S reports changes in beneficial ownership of CoStar Group, Inc. common stock.

Director Robert W. Musslewhite reports changes in beneficial ownership of Costar Group, Inc. shares, including acquisitions and disposals.

Laura Cox Kaplan, a director of CoStar Group, Inc., reported the acquisition and disposition of company shares on July 17, 2024.

Director John W. Hill of Costar Group, Inc. reports acquiring 3,689 shares of common stock and disposing of an unspecified amount on July 17, 2024.

Christian M. Lown, CFO of CoStar Group, files an amendment to a previous Form 4 to correct the number of shares of common stock owned.