---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-274514"
form_type: "8-K"
ticker: "MKTX"
cik: "0001278021"
company_name: "MARKETAXESS HOLDINGS INC"
filed_at: "2023-11-09T23:59:59+00:00"
generated_at: "2026-06-08T06:08:06.739293+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# MarketAxess CFO Christopher Gerosa to resign Jan 31, 2024; search initiated

## Summary
- CFO Christopher N. Gerosa will step down effective January 31, 2024, to join a private tech firm in commercial banking.
- Departure not due to any disagreement with the company or its auditors on operations, policies, or accounting.
- Company has initiated a formal search for a new CFO; CEO Chris Concannon thanked Gerosa for his leadership.
- Gerosa expressed confidence in the company's client franchise and growth, and will remain a shareholder.

## SEC filing metadata
- accession: 0001193125-23-274514
- form_type: 8-K
- ticker: MKTX
- cik: 0001278021
- company_name: MARKETAXESS HOLDINGS INC
- filed_at: 2023-11-09T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1278021/000119312523274514/0001193125-23-274514-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1278021/000119312523274514/d320727d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-274514
- JSON: https://secwatch.observer/filing/0001193125-23-274514.json
- Plain text: https://secwatch.observer/filing/0001193125-23-274514.txt

## Key facts
- Executive change
  Christopher N. Gerosa resigned as Chief Financial Officer at MARKETAXESS HOLDINGS INC.
  - Action: resigned
  - Role: Chief Financial Officer
  source text: On November 6, 2023, MarketAxess Holdings Inc. (the “Company”) was informed by Christopher N. Gerosa, the Company’s Chief Financial Officer, that he will resign from such position effective January 31, 2024, to accept a position with another company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1278021/000119312523274514/0001193125-23-274514-index.htm

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