Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001057352-12-000136
Filing Date
2012-09-20
Accepted
2012-09-20 17:48:21
Documents
1
Period of Report
2012-09-18

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT edgar.html 4  
1 PRIMARY DOCUMENT edgar.xml 4 7169
  Complete submission text file 0001057352-12-000136.txt   8488
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 2001 K STREET, N.W. SUITE 206 WASHINGTON DC 20006
Business Address
KLEIN MICHAEL R (Reporting) CIK: 0001066062 (see all company filings)

Type: 4 | Act: 34 | File No.: 000-24531 | Film No.: 121102794