COSTAR GROUP, INC. — Director's Dealing 2013

Feb 25, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COSTAR GROUP INC (CSGP)
CIK: 0001057352
Period of Report: 2013-02-21

Reporting Person: Kitchen Jennifer (Sr. Vice President, Research)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-21	Common Stock, par value $0.01 per share	F	522	$95.90	Disposed	25158	Direct

Footnotes

F1: Represents all shares of Common Stock owned, consisting of 6,790 shares of Common Stock and 18,368 shares of Common Stock subject to unvested Restricted Stock Grants.