Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001269678-11-000145
Filing Date
2011-02-14
Accepted
2011-02-14 06:46:23
Documents
1

Document Format Files

Seq Description Document Type Size
1 costargroup13gamend1.htm SC 13G/A 19589
  Complete submission text file 0001269678-11-000145.txt   21812
Mailing Address 151 DETROIT ST. DENVER CO 80206-4805
Business Address 151 DETROIT ST. DENVER CO 80206-4805 3033333863
JANUS CAPITAL MANAGEMENT LLC (Filed by) CIK: 0000812295 (see all company filings)

EIN.: 753019302 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

Mailing Address 2 BETHESDA METRO CENTER 10TH FLOOR BETHESDA MD 20814
Business Address 2 BETHESDA METRO CENTER 10TH FLOOR BETHESDA MD 20814 3012158300
COSTAR GROUP INC (Subject) CIK: 0001057352 (see all company filings)

EIN.: 522091509 | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-54369 | Film No.: 11602106
SIC: 7389 Services-Business Services, NEC