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Filing Detail
Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
SEC Accession No. 0000908733-08-000127
Filing Date
2008-01-22
Accepted
2008-01-22 16:23:31
Documents
1

Document Format Files

Seq Description Document Type Size
1 COGENT COMMUNICATIONS GROUP INC 13G cogentcommunicationsgroup.htm SC 13G 11767
  Complete submission text file 0000908733-08-000127.txt   13857
Mailing Address 227 W MONROE ST STE 3000 CHICAGO IL 60606
Business Address 227 W MONROE STREET SUITE 3000 CHICAGO IL 60606 3126349231
COLUMBIA WANGER ASSET MANAGEMENT LP (Filed by) CIK: 0000908733 (see all company filings)

IRS No.: 363820584 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G
SIC: 0000

Mailing Address
Business Address 1015 31ST STREET WASHINGTON DC 20007 2022954200
COGENT COMMUNICATIONS GROUP INC (Subject) CIK: 0001158324 (see all company filings)

IRS No.: 522337274 | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-78106 | Film No.: 08542125
SIC: 7372 Services-Prepackaged Software