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Identity, professional record and current appointments.

Overview

Professional record at a glance

A concise summary of information supported by the cited public sources. Missing information is treated as unknown, not as a negative finding.

Current roles
11 current organization shown on this profile
Board positions
Not establishedNo board position is currently listed on this profile
Committee roles
Not establishedNo committee role is currently confirmed by the cited sources
Qualifications
Not establishedNo qualification is currently confirmed by the cited sources

Professional narrative

About

Alpha has not published a narrative summary because the current public source set is not sufficient.

Current roles

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Executive appointments

Governance

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Connections

Explore the roles, education and affiliations published in this record.

COGENT COMMUNICATIONS HOLDINGS, INC.

Open COGENT COMMUNICATIONS HOLDINGS, INC. profile →

Chief Legal Officer at COGENT COMMUNICATIONS HOLDINGS, INC.

Start not stated → End not stated

current · source reported

Observed: 2026-09-11

COGENT COMMUNICATI…COGENT COMMUNICATIONS HOLDINGS, INC.John Chang

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Relationship map

Connected through the public record

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Direct public links only

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Experience

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Published record

Featured coverage

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Source 1 · Sec Def 14aPublic profile sourceSupports Chief Legal Officer at COGENT COMMUNICATIONS HOLDINGS, INC. (NASDAQ: CCOI), Executive title.Open source

Basis

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Identifiers

Alpha ID
alpha:person:john-chang-cogent-communications-holdings-inc
Record version
public-0

Sources

Sources and published information

Each item links to the public source used to support it. When sources disagree, the item is clearly marked for review.

Executive title · Source reportedExecutive title: Chief Legal Officer1 source
Verification
Source reported
Confidence
95%
Last reviewed
Sep 6, 2026
View all sources1 records
  1. https://www.sec.gov/Archives/edgar/data/1158324/000110465926032744/tm261415-1_def14a.htm

    Sec Def 14a · Tier not stated · Reviewed Sep 6, 2026

    Supports: Chief Legal Officer at COGENT COMMUNICATIONS HOLDINGS, INC. (NASDAQ: CCOI) · Executive title