{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-054102","form_type":"8-K","ticker":"CME","cik":"0001156375","company_name":"CME GROUP INC.","filed_at":"2023-02-28T23:59:59+00:00","discovered_at":"2026-05-14T18:03:43.986086+00:00","generated_at":"2026-06-18T21:00:39.823125+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"CME Group CFO John Pietrowicz to retire April 1; Lynne Fitzpatrick named successor","bullets":["John W. Pietrowicz retires as CFO effective April 1, 2023; will serve as Special Advisor until Dec 31, 2023.","Lynne Fitzpatrick (44) appointed CFO effective April 1, 2023; previously Deputy CFO since Feb 2022.","Fitzpatrick joined CME in 2006, led corporate development, M&A, and treasury as Managing Director.","No family relationships or material transactions between Fitzpatrick and company executives or directors."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-054102","json":"https://secwatch.observer/filing/0001193125-23-054102.json","markdown":"https://secwatch.observer/filing/0001193125-23-054102.md","text":"https://secwatch.observer/filing/0001193125-23-054102.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1156375/000119312523054102/0001193125-23-054102-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1156375/000119312523054102/d439642d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-18T21:00:39.823125+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"c0eb81a6da","claim":"Lynne Fitzpatrick was appointed as Chief Financial Officer at CME GROUP INC..","evidence_excerpt":"Mr. Pietrowicz will retire from his position as Chief Financial Officer and Ms. Fitzpatrick will assume the role effective as of April 1, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1156375/000119312523054102/0001193125-23-054102-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Financial Officer"}],"fact_type":"executive_change"},{"claim_id":"df3e4f4cc7","claim":"John W. Pietrowicz departed as Chief Financial Officer at CME GROUP INC..","evidence_excerpt":"Mr. Pietrowicz will retire from his position as Chief Financial Officer and Ms. Fitzpatrick will assume the role effective as of April 1, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1156375/000119312523054102/0001193125-23-054102-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retire"},{"label":"Role","value":"Chief Financial Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}