---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-386091"
form_type: "8-K"
ticker: "CME"
cik: "0001156375"
company_name: "CME GROUP INC."
filed_at: "2026-09-09T15:15:33+00:00"
generated_at: "2026-09-09T15:17:22.899393+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# CME Group names Tobin CFO, Marchese GC, Render CAO in leadership reshuffle

## Summary
- Jack Tobin to become CFO in March 2027, succeeding Lynne Fitzpatrick who becomes CEO; Tobin becomes Deputy CFO in Nov 2026.
- Matthew Render appointed Chief Accounting Officer effective Nov 2, 2026, succeeding Tobin; Render joined CME in Aug 2026 from Citadel.
- John Marchese promoted to General Counsel, succeeding Jonathan Marcus later this month; Marchese had been Associate GC since 2024.
- Tobin has been CAO since 2015; Render previously held finance roles at Citadel, BP, and Ernst & Young.

## SEC filing metadata
- accession: 0001193125-26-386091
- form_type: 8-K
- ticker: CME
- cik: 0001156375
- company_name: CME GROUP INC.
- filed_at: 2026-09-09T15:15:33+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1156375/000119312526386091/0001193125-26-386091-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1156375/000119312526386091/d157844d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-386091
- JSON: https://secwatch.observer/filing/0001193125-26-386091.json
- Plain text: https://secwatch.observer/filing/0001193125-26-386091.txt

## Key facts
- Executive change
  Jack Tobin changed role as Chief Financial Officer at CME GROUP INC..
  - Action: will assume
  - Role: Chief Financial Officer
  source text: Mr. Tobin will assume the role of Chief Financial Officer in March 2027, effective with Lynne Fitzpatrick’s transition to the role of Chief Executive Officer, as detailed in the Company’s Current Report on Form 8-K filed on June 17, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1156375/000119312526386091/0001193125-26-386091-index.htm
- Executive change
  Matthew Render was appointed as Managing Director, Chief Accounting Officer at CME GROUP INC..
  - Action: appointed
  - Role: Managing Director, Chief Accounting Officer
  source text: Matthew Render, 47, will succeed Mr. Tobin as the Company’s Managing Director, Chief Accounting Officer effective as of November 2, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1156375/000119312526386091/0001193125-26-386091-index.htm
- Executive change
  Jack Tobin was appointed as Managing Director, Deputy Chief Financial Officer at CME GROUP INC..
  - Action: appointed
  - Role: Managing Director, Deputy Chief Financial Officer
  source text: Jack Tobin, 63, will be appointed to the role of Managing Director, Deputy Chief Financial Officer as of November 2, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1156375/000119312526386091/0001193125-26-386091-index.htm

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