{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-24-049932","form_type":"8-K","ticker":"CBOE","cik":"0001374310","company_name":"Cboe Global Markets, Inc.","filed_at":"2024-12-04T23:59:59+00:00","discovered_at":"2026-05-14T18:03:08.282648+00:00","generated_at":"2026-05-29T08:29:56.448851+00:00","sec_items":["5.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Cboe Global adopts amended bylaws raising special meeting threshold to 25%","bullets":["Special meetings now require ownership of at least 25% of outstanding common stock.","Added procedural and disclosure requirements for stockholder special meeting requests.","Modified stockholder nomination and proposal procedures, aligning with Delaware law and universal proxy rules.","Lead director authorized to call special board meetings; other ministerial changes.","Bylaws effective November 29, 2024."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-24-049932","json":"https://secwatch.observer/filing/0001628280-24-049932.json","markdown":"https://secwatch.observer/filing/0001628280-24-049932.md","text":"https://secwatch.observer/filing/0001628280-24-049932.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1374310/000162828024049932/0001628280-24-049932-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1374310/000162828024049932/cboe-20241129.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-29T08:29:56.448851+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":"db4c2541821f1c01d98e2e17d948aae389e14d68","claim":"Cboe Global Markets, Inc.: Amended bylaws to modify special meeting threshold, add procedural requirements for stockholder nominations and proposals, and address universal proxy rules (effective 2024-11-29).","evidence_excerpt":"On November 29, 2024, the Eighth Amended and Restated Bylaws (the “ Bylaws ”) of Cboe Global Markets, Inc. (the “ C ompany ”) became effective, following approval by the Company’s Board of Directors (the “ Board ”) and filing with the United States Securities and Exchange Commission.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1374310/000162828024049932/0001628280-24-049932-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"bylaw amendment"},{"label":"Effective","value":"2024-11-29"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}