COSTAR GROUP, INC. — Director's Dealing 2024

Feb 26, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COSTAR GROUP, INC. (CSGP)
CIK: 0001057352
Period of Report: 2024-02-22

Reporting Person: SAINT FREDERICK G. (President, Marketplaces)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-02-22	Common Stock, par value $0.01 per share	D	8000	—	Disposed	227428	Direct
2024-02-22	Common Stock, par value $0.01 per share	F	4881	$83.98	Disposed	222547	Direct
2024-02-22	Common Stock, par value $0.01 per share	A	69160	—	Acquired	291707	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-02-22	Option to Acquire Common Stock	$82.47	A	17000	Acquired	2034-02-21	Common Stock (17000)	Direct

Footnotes

F1: Shares forfeited from February 18, 2021 performance restricted stock grant upon certification of actual achievement of the performance goal by the Compensation Committee.

F2: Includes a grant of 33,400 shares of restricted common stock that vest in three equal installments on March 1, 2025, March 1, 2026 and March 1, 2027, and a grant of 35,760 shares of restricted common stock that vest based upon CoStar Group, Inc.'s achievement of a three-year performance goal.

F3: The option vests in three equal installments on March 1, 2025, March 1, 2026 and March 1, 2027.