COSTAR GROUP, INC. — Director's Dealing 2018

Mar 1, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COSTAR GROUP INC (CSGP)
CIK: 0001057352
Period of Report: 2018-02-26

Reporting Person: KLEIN MICHAEL R (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-02-26	Common Stock, par value $0.01 per share	G	8453	—	Disposed	302729	Direct
2018-02-28	Common Stock, par value $0.01 per share	G	10000	—	Disposed	292729	Direct

Footnotes

F1: Represents all shares of Common Stock owned, consisting of 300,457 shares of Common Stock and 2,272 shares of Common Stock subject to unvested Restricted Stock grants.

F2: Represents all shares of Common Stock owned, consisting of 290,457 shares of Common Stock and 2,272 shares of Common Stock subject to unvested Restricted Stock grants.