Form 424B3 - Prospectus [Rule 424(b)(3)]:
SEC Accession No. 0000950123-11-057048
Filing Date
2011-06-07
Accepted
2011-06-06 19:38:21
Documents
5

Document Format Files

Seq Description Document Type Size
1 424(B)(3) w82657b3e424b3.htm 424B3 2014156
2 GRAPHIC w82657b3w8265703.gif GRAPHIC 2369
3 GRAPHIC w82657b3w8265700.gif GRAPHIC 1657
4 GRAPHIC w82657b3w8265704.gif GRAPHIC 4194
5 GRAPHIC w82657b3w8265701.gif GRAPHIC 1521
  Complete submission text file 0000950123-11-057048.txt   2029127
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: 424B3 | Act: 33 | File No.: 333-174214 | Film No.: 11896767
SIC: 7389 Services-Business Services, NEC