secwatch.observer — SEC 8-K summary
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Issuer:     CME GROUP INC. (CME)
CIK:        0001156375
Form:       8-K
Filed at:   2025-09-11T23:59:59+00:00
Accession:  0001156375-25-000190
Event type: leadership
Sentiment:  neutral
Materiality: 0.40
Item codes: 5.02
LLM model:  deepseek-v4-flash:cloud@v2

CME Group CAO Jack Tobin to retire; will stay through Oct 30, 2026
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- Jack Tobin, Managing Director and Chief Accounting Officer, notified retirement on Sept 9, 2025.
- He will remain CAO until Oct 30, 2026, to support transition.
- Tobin served as CAO since 2015 and has been with CME for over 23 years.
- Retirement is voluntary, not due to any disagreements over accounting or policies.
- Company will initiate search for successor; Tobin to assist with transition.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1156375/000115637525000190/0001156375-25-000190-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1156375/000115637525000190/cme-20250909.htm
  HTML page:      https://secwatch.observer/filing/0001156375-25-000190

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer