Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0001057352-11-000096
Filing Date
2011-06-08
Accepted
2011-06-08 16:43:11
Documents
2
Period of Report
2011-06-02

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT edgar.html 3  
1 PRIMARY DOCUMENT edgar.xml 3 2283
2 POWER OF ATTORNEY attach_1.htm EX-24 4066
  Complete submission text file 0001057352-11-000096.txt   7682
Mailing Address 1331 L STREET NW WASHINGTON DC 20005
Business Address 1331 L STREET NW WASHINGTON DC 20005 2023466500
COSTAR GROUP INC (Issuer) CIK: 0001057352 (see all company filings)

EIN.: 522091509 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 7389 Services-Business Services, NEC

Mailing Address C/O COSTAR GROUP, INC. 1331 L STREET, NW WASHINGTON DC 20005
Business Address
Steinberg David Jay (Reporting) CIK: 0001522418 (see all company filings)

Type: 3 | Act: 34 | File No.: 000-24531 | Film No.: 11901307