COGENT COMMUNICATIONS HOLDINGS, INC. — Director's Dealing 2012

Nov 30, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COGENT COMMUNICATIONS GROUP INC (CCOI)
CIK: 0001158324
Period of Report: 2012-11-29

Reporting Person: ONEILL TIMOTHY G (VP Field Engineering)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-11-29	common stock	S	5000	$22.0326	Disposed	86152	Direct

Footnotes

F1: A portion of these securities is not vested.