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Filing Detail
Form 424B2 - Prospectus [Rule 424(b)(2)]:
SEC Accession No. 0000950123-11-052776
Filing Date
2011-05-23
Accepted
2011-05-23 07:08:40
Documents
3

Document Format Files

Seq Description Document Type Size
1 424(B)(2) w82658b2e424b2.htm 424B2 783895
2 GRAPHIC w82658b2x8265801.gif GRAPHIC 2416
3 GRAPHIC w82658b2w8265800.gif GRAPHIC 3267
  Complete submission text file 0000950123-11-052776.txt   792966
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)

IRS No.: 522091509 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 424B2 | Act: 33 | File No.: 333-174407 | Film No.: 11863445
SIC: 7389 Services-Business Services, NEC