FORM 10-K DATED DECEMBER 31, 1998

Company

COSTAR GROUP, INC.

Filed

March 31, 1999

Period of Report

December 31, 1998

Accession Number

0000950133-99-001092

A 10-K is a company's comprehensive annual report, required by the SEC. It includes audited financial statements, a description of the business, risk factors, and management's discussion of results. Learn more about 10-K filings →