Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001057352-11-000012
Filing Date
2011-02-25
Accepted
2011-02-24 21:50:42
Documents
10
Period of Report
2010-12-31

Document Format Files

Seq Description Document Type Size
1 2010 FORM 10-K form_10-k.htm 10-K 2166700
2 EMPLOYEE STOCK PURCHASE PLAN exhibit10_14.htm EX-10.14 52133
3 SUBSIDIARIES OF REGISTRANT exhibit21_1.htm EX-21.1 4416
4 CONSENT OF INDEPENDENT PUB ACCT FIRM exhibit23_1.htm EX-23.1 7716
5 CEO CERT exhibit31_1.htm EX-31.1 16026
6 CFO CERT exhibit31_2.htm EX-31.2 15179
7 CEO 906 CERT exhibit32_1.htm EX-32.1 10391
8 CFO 906 CERT exhibit32_2.htm EX-32.2 9563
9 CHART chart2010.jpg GRAPHIC 29153
10 LOGO currentcostarlogo-sml.jpg GRAPHIC 5482
  Complete submission text file 0001057352-11-000012.txt   2331669
Mailing Address 1331 L STREET NW WASHINGTON DC 20005
Business Address 1331 L STREET NW WASHINGTON DC 20005 2023466500
COSTAR GROUP INC (Filer) CIK: 0001057352 (see all company filings)

EIN.: 522091509 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 000-24531 | Film No.: 11638344
SIC: 7389 Services-Business Services, NEC