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AI brief of an SEC Form 8-K · CME (CME)

CME Group: Chief Accounting Officer Jack Tobin to retire; will serve until October 30, 2026

Neutral Impact 3 of 5 leadership Written later

CME Group said its Chief Accounting Officer, Jack Tobin, has decided to retire after more than 23 years with the company and seven...

Key points

  • Jack Tobin notified CME Group of his retirement decision on September 9, 2025.
  • Tobin will remain Chief Accounting Officer until October 30, 2026.
  • Tobin has held the role since 2015; the company says the departure is voluntary and not due to any disagreement on accounting, operations, policies or practices.
  • CME Group will search for a successor, and Tobin will work with that person on the transition.

The filing

CompanyCME (CME)
Form8-K, current report
Filed with the SECSep 11, 2025, 12:06 PM ET
Accession number0001156375-25-000190

Items reported: 5.02 Director / Officer Change

Read the filing on SEC.gov ↗

Written by AI (Anthropic Claude, claude-haiku-5-5) on Nov 8, 2026, 1:21 AM ET, from the text of the filing and its press-release exhibits only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on September 11, 2025.

Briefs are written by AI from the filing text (each brief's own page names the model) and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the model's reading of the filing for shareholders, not a price forecast. Not investment advice.