Frank Simuro - Apr 18, 2022 Form 3 Insider Report for COSTAR GROUP, INC. (CSGP)

Role: Chief Technology Officer
Signature: /s/ Michael Rosenthall, Attorney-in-Fact
Stock symbol: CSGP
Transactions as of: Apr 18, 2022
Transactions value $: $0
Form type: 3
Date filed: 4/28/2022, 04:35 PM
Next filing: Feb 16, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	CSGP	Common Stock, par value $0.01 per share						277K	Apr 18, 2022	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	CSGP	Option to Acquire Common Stock							Apr 18, 2022	Common Stock	35.2K	$10.22	Direct	F2
holding	CSGP	Option to Acquire Common Stock							Apr 18, 2022	Common Stock	10.3K	$19.37	Direct	F3
holding	CSGP	Option to Acquire Common Stock							Apr 18, 2022	Common Stock	5.47K	$18.28	Direct
holding	CSGP	Option to Acquire Common Stock							Apr 18, 2022	Common Stock	4.88K	$20.49	Direct
holding	CSGP	Option to Acquire Common Stock							Apr 18, 2022	Common Stock	25.3K	$34.21	Direct	F4
holding	CSGP	Option to Acquire Common Stock							Apr 18, 2022	Common Stock	38K	$39.82	Direct	F5
holding	CSGP	Option to Acquire Common Stock							Apr 18, 2022	Common Stock	33K	$66.65	Direct	F6
holding	CSGP	Option to Acquire Common Stock							Apr 18, 2022	Common Stock	17K	$91.98	Direct	F7
holding	CSGP	Option to Acquire Common Stock							Apr 18, 2022	Common Stock	22.6K	$67.29	Direct	F8

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents all shares of Common Stock owned, consisting of 116,510 shares of Common Stock and 110,150 shares of Common Stock subject to unvested Restricted Stock grants, 24,971 shares of Deferred Stock Units and 24,971 shares of unvested Restricted Stock Units.
F2	The option, representing a right to purchase 125,220 shares, became exercisable as to 45,000 shares on March 11, 2014, 45,000 shares on March 11, 2015, and 35,220 shares on March 11, 2016.
F3	The option became exercisable in equal installments on March 5, 2017 and March 5, 2018.
F4	The option, representing a right to purchase 76,000 shares, became exercisable as to 25,330 shares on February 28, 2019, 25,330 shares on February 28, 2020, and 25,340 shares on February 28, 2021.
F5	The option, representing a right to purchase 38,000 shares, became exercisable as to 12,660 shares on February 15, 2020, 12,670 shares on February 15, 2021, and 12,670 shares on February 15, 2022.
F6	The option, representing a right to purchase 33,000 shares, became exercisable as to 11,000 shares on February 15, 2021 and 11,000 shares on February 15, 2022, and becomes exercisable as to 11,000 shares on February 15, 2023.
F7	The option, representing a right to purchase 17,000 shares, became exercisable as to 5,660 shares on March 1, 2022, and becomes exercisable as to 5,670 shares on March 1, 2023 and 5,670 shares on March 1, 2024.
F8	The option, representing a right to purchase 22,600 shares, becomes exercisable as to 7,533 shares on March 1, 2023, 7,533 shares on March 1, 2024, and 7,534 shares on March 1, 2025.