---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-22-053125"
form_type: "8-K"
ticker: "CCOI"
cik: "0001158324"
company_name: "COGENT COMMUNICATIONS HOLDINGS, INC."
filed_at: "2022-04-29T23:59:59+00:00"
generated_at: "2026-06-26T02:26:44.835242+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# CFO Sean Wallace resigns; Thaddeus Weed reappointed as CFO of Cogent Communications

## Summary
- Sean Wallace resigned as VP, CFO and Treasurer effective April 29, 2022, not due to any disagreement.
- Thaddeus G. Weed, age 61, resumes roles of VP, CFO and Treasurer (Principal Financial/Accounting Officer).
- Weed previously served as CFO from 2004 to March 2020 and most recently as SVP of Audit and Operations.
- Weed's compensation remains unchanged; prior employment agreements and restricted stock awards continue.

## SEC filing metadata
- accession: 0001104659-22-053125
- form_type: 8-K
- ticker: CCOI
- cik: 0001158324
- company_name: COGENT COMMUNICATIONS HOLDINGS, INC.
- filed_at: 2022-04-29T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1158324/000110465922053125/0001104659-22-053125-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1158324/000110465922053125/tm2213900d2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-22-053125
- JSON: https://secwatch.observer/filing/0001104659-22-053125.json
- Plain text: https://secwatch.observer/filing/0001104659-22-053125.txt

## Key facts
- Executive change
  Sean Wallace resigned as Vice President, Chief Financial Officer and Treasurer at COGENT COMMUNICATIONS HOLDINGS, INC..
  - Action: resigned
  - Role: Vice President, Chief Financial Officer and Treasurer
  source text: On April 29, 2022, Cogent Communications Holdings, Inc. (the “Company”) announced that Sean Wallace resigned as Vice President, Chief Financial Officer and Treasurer of the Company, effective April 29, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1158324/000110465922053125/0001104659-22-053125-index.htm
- Executive change
  Thaddeus G. Weed was appointed as Vice President, Chief Financial Officer and Treasurer (Principal Financial and Principal Accounting Officer) at COGENT COMMUNICATIONS HOLDINGS, INC..
  - Action: will resume service
  - Role: Vice President, Chief Financial Officer and Treasurer (Principal Financial and Principal Accounting Officer)
  source text: Mr. Thaddeus G. Weed will resume service as Vice President, Chief Financial Officer and Treasurer (Principal Financial and Principal Accounting Officer) of the Company, effective upon Mr. Wallace’s resignation.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1158324/000110465922053125/0001104659-22-053125-index.htm

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