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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001104659-15-023764
Filing Date
2015-03-30
Accepted
2015-03-30 12:52:36
Documents
1
Effectiveness Date
2015-03-30

Document Format Files

Seq Description Document Type Size
1 DEFA14A a15-8194_2defa14a.htm DEFA14A 34812
  Complete submission text file 0001104659-15-023764.txt   35905
Mailing Address 1015 31ST STREET NW WASHINGTON DC 20007
Business Address 1015 31ST STREET WASHINGTON DC 20007 2022954200
COGENT COMMUNICATIONS HOLDINGS, INC. (Filer) CIK: 0001158324 (see all company filings)

IRS No.: 522337274 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 000-51829 | Film No.: 15733482
SIC: 7372 Services-Prepackaged Software