---
schema_version: "secwatch.filing_event.v1"
accession: "0001758730-23-000129"
form_type: "8-K"
ticker: "TW"
cik: "0001758730"
company_name: "Tradeweb Markets Inc."
filed_at: "2023-05-15T23:59:59+00:00"
generated_at: "2026-06-15T01:22:17.401747+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Tradeweb Chairman Lee Olesky to retire; Jacques Aigrain elected as new Chairman

## Summary
- Lee Olesky to resign as Chairperson and Board member effective June 30, 2023.
- Board elected Jacques Aigrain as new Chairperson effective July 1, 2023.
- Olesky co-founded Tradeweb in 1996 and retired as CEO in December 2022.
- Aigrain joined board in 2022; has 30+ years financial services experience.
- Pro-rata vesting of Olesky's RSU grant approved by Compensation Committee.

## SEC filing metadata
- accession: 0001758730-23-000129
- form_type: 8-K
- ticker: TW
- cik: 0001758730
- company_name: Tradeweb Markets Inc.
- filed_at: 2023-05-15T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1758730/000175873023000129/0001758730-23-000129-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1758730/000175873023000129/tw-20230515.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001758730-23-000129
- JSON: https://secwatch.observer/filing/0001758730-23-000129.json
- Plain text: https://secwatch.observer/filing/0001758730-23-000129.txt

## Key facts
- Executive change
  Lee Olesky resigned as Chairperson of the Board at Tradeweb Markets Inc..
  - Action: resigned
  - Role: Chairperson of the Board
  source text: he will resign from his position as Chairperson of the Board and as a member of the Board, effective as of June 30, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1758730/000175873023000129/0001758730-23-000129-index.htm
- Executive change
  Jacques Aigrain was elected as Chairperson of the Board at Tradeweb Markets Inc..
  - Action: elected
  - Role: Chairperson of the Board
  source text: On May 12, 2023, the Board elected Jacques Aigrain to succeed Mr. Olesky as Chairperson of the Board, effective as of July 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1758730/000175873023000129/0001758730-23-000129-index.htm

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