PRESS RELEASE DETAIL


Jan 18, 2008

CoStar Group CEO and Chairman Terminate 10b5-1 Plans

2002-12-02 2002 CoStar Group CEO and Chairman Terminate 10b5-1 Plans

BETHESDA, MD – CoStar Group, Inc. (NASDAQ: CSGP), the leading provider of informa...

2002-12-02 2002 CoStar Group CEO and Chairman Terminate 10b5-1 Plans

BETHESDA, MD – CoStar Group, Inc. (NASDAQ: CSGP), the leading provider of information services to the U.S. commercial real estate industry, today announced that both its CEO, Andrew C. Florance, and its Chairman, Michael R. Klein, have terminated their prearranged plans covering the sale of portions of their holdings of CoStar Group common stock through a pattern of pre-authorized trading. These plans had been adopted in accordance with the Securities and Exchange Commission Rule 10b5-1. In connection with the termination of his plan, Mr. Klein indicated that he has determined that any further reduction in his holdings of CoStar stock would be better effected without the benefit of the prescribed pattern of trading set forth in this plan. Mr. Florance has no plans to sell CoStar stock currently.

About CoStar Group

Headquartered in Bethesda, MD, CoStar Group, Inc. (NASDAQ: CSGP), is the leading provider of information services to the U.S. commercial real estate industry. CoStar's suite of products offers customers access to the most comprehensive, verified database of commercial real estate information in 50 U.S. markets. The company has approximately 800 employees in 32 offices nationally, including the industry's largest professional research organization.

 
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