SEC Form 4 · accession 0001057352-18-000088

COSTAR GROUP, INC. · CSGP

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Executive VP, Sales

Period of report

Jul 30, 2018

Accepted (ET)

Jul 31, 2018 · 4:18 pm EDT

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0001057352

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I
Common Stock, par value $0.01 per share^F1	Jul 30, 2018	M	1,884	$193.69	A	28,819	D
Common Stock, par value $0.01 per share^F2	Jul 30, 2018	M	2,500	$182.75	A	31,319	D
Common Stock, par value $0.01 per share^F3,F4	Jul 30, 2018	S	4,384	$411.93	D	26,935	D

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Option to Acquire Common Stock^F5	$193.69	Jul 30, 2018	M	1,884	D	—	Mar 4, 2025	Common Stock	1,884	516	D
Option to Acquire Common Stock^F6	$182.75	Jul 30, 2018	M	2,500	D	—	Mar 10, 2026	Common Stock	2,500	3,500	D

F1Represents all shares of Common Stock owned, consisting of 9,070 shares of Common Stock and 19,749 shares of Common Stock subject to unvested Restricted Stock grants.
F2Represents all shares of Common Stock owned, consisting of 11,570 shares of Common Stock and 19,749 shares of Common Stock subject to unvested Restricted Stock grants.
F3Average based on sales prices ranging from $411 to $412.76.
F4Represents all shares of Common Stock owned, consisting of 7,186 shares of Common Stock and 19,749 shares of Common Stock subject to unvested Restricted Stock grants.
F5The option vested in three equal installments on March 5, 2016, March 5, 2017 and March 5, 2018.
F6The option vests in three equal installments on March 11, 2017, March 11, 2018 and March 11, 2019.