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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0001193125-15-043003
Filing Date
2015-02-11
Accepted
2015-02-11 09:24:00
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC 13G/A d866366dsc13ga.htm SC 13G/A 28911
  Complete submission text file 0001193125-15-043003.txt   30871
Mailing Address 227 W MONROE ST STE 3000 CHICAGO IL 60606
Business Address 227 W MONROE STREET SUITE 3000 CHICAGO IL 60606 312-634-9200
COLUMBIA WANGER ASSET MANAGEMENT LLC (Filed by) CIK: 0000908733 (see all company filings)

IRS No.: 043519872 | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

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

IRS No.: 522337274 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-78106 | Film No.: 15596864
SIC: 7372 Services-Prepackaged Software