Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001057352-11-000130
Filing Date
2011-09-12
Accepted
2011-09-12 17:52:01
Documents
1
Period of Report
2011-09-08

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT edgar.html 4  
1 PRIMARY DOCUMENT edgar.xml 4 3272
  Complete submission text file 0001057352-11-000130.txt   4597
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 77 WEST WACKER DRIVE SUITE 3900 CHICAGO IL 60601
Business Address
NASSETTA CHRISTOPHER J (Reporting) CIK: 0001078095 (see all company filings)

Type: 4 | Act: 34 | File No.: 000-24531 | Film No.: 111086495