---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-079272"
form_type: "8-K"
ticker: "CCOI"
cik: "0001158324"
company_name: "COGENT COMMUNICATIONS HOLDINGS, INC."
filed_at: "2025-08-15T23:59:59+00:00"
generated_at: "2026-05-17T12:19:45.004907+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Cogent Communications VP of Global Sales & CRO James Bubeck to retire; Mark Andrew Harris named successor

## Summary
- James Bubeck to retire as VP of Global Sales and Chief Revenue Officer, effective September 2, 2025.
- Mark Andrew Harris will succeed Bubeck as VP of Global Sales and Chief Revenue Officer effective upon retirement.
- Harris, age 61, joined Cogent in 2023 via Sprint Communications acquisition; with Sprint sales since 2003.
- Harris most recently served as VP of European Sales for Cogent.

## SEC filing metadata
- accession: 0001104659-25-079272
- form_type: 8-K
- ticker: CCOI
- cik: 0001158324
- company_name: COGENT COMMUNICATIONS HOLDINGS, INC.
- filed_at: 2025-08-15T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 7.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1158324/000110465925079272/0001104659-25-079272-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1158324/000110465925079272/tm2523528d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-079272
- JSON: https://secwatch.observer/filing/0001104659-25-079272.json
- Plain text: https://secwatch.observer/filing/0001104659-25-079272.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.