COSTAR GROUP, INC. — Director's Dealing 2023

Mar 21, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COSTAR GROUP, INC. (CSGP)
CIK: 0001057352
Period of Report: 2023-03-17

Reporting Person: SIMURO FRANK (Chief Technology Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-03-17	Common Stock, par value $0.01 per share	M	10320	$19.37	Acquired	343513	Direct
2023-03-17	Common Stock, par value $0.01 per share	M	5470	$18.28	Acquired	348983	Direct
2023-03-17	Common Stock, par value $0.01 per share	M	4880	$20.49	Acquired	353863	Direct
2023-03-17	Common Stock, par value $0.01 per share	M	2920	$34.21	Acquired	356783	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-03-17	Option to Acquire Common Stock	$19.37	M	10320	Disposed	2025-03-04	Common Stock (10320.0)	Direct
2023-03-17	Option to Acquire Common Stock	$18.28	M	5470	Disposed	2026-03-10	Common Stock (5470.0)	Direct
2023-03-17	Option to Acquire Common Stock	$20.49	M	4880	Disposed	2027-03-01	Common Stock (4880.0)	Direct
2023-03-17	Option to Acquire Common Stock	$34.21	M	2920	Disposed	2028-02-27	Common Stock (2920.0)	Direct

Footnotes

F1: Revised to deduct 4,384 shares previously withheld to cover taxes with respect to the vesting of the February 6, 2020 performance restricted stock grant that were inadvertently included in the Form 4 filed on behalf of the reporting person on February 16, 2023.

F2: The option vested in three equal installments on March 5, 2016, March 5, 2017, and March 5, 2018.

F3: The option vested in three equal installments on March 11, 2017, March 11, 2018, and March 11, 2019.

F4: The option vested in three equal installments on March 31, 2018, March 31, 2019, and March 31, 2020.

F5: The option vested in three equal installments on February 28, 2019, February 28, 2020, and February 28, 2021.