{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-24-050040","form_type":"8-K/A","ticker":"CBOE","cik":"0001374310","company_name":"Cboe Global Markets, Inc.","filed_at":"2024-12-05T23:59:59+00:00","discovered_at":"2026-05-14T18:03:08.282220+00:00","generated_at":"2026-05-29T07:10:37.382533+00:00","sec_items":["9.01","5.03"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Cboe amends bylaws: special meetings require 25% stockholder ownership","bullets":["Only board or stockholders owning at least 25% of outstanding common stock can call a special meeting.","New procedural and disclosure requirements for stockholder special meeting requests, including record date standing.","Amendments address universal proxy rules (Rule 14a-19) and add compliance remedies for non-conforming stockholders.","Lead director (if any) now authorized to call a special meeting of the board; ministerial and conforming updates also adopted."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-24-050040","json":"https://secwatch.observer/filing/0001628280-24-050040.json","markdown":"https://secwatch.observer/filing/0001628280-24-050040.md","text":"https://secwatch.observer/filing/0001628280-24-050040.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1374310/000162828024050040/0001628280-24-050040-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1374310/000162828024050040/cboe-20241129.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-29T07:10:37.382533+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":"048338c83dd756c6935b2151675a5ecdb39b2e2c","claim":"Cboe Global Markets, Inc.: Amended bylaws to, among other things, increase threshold for calling special stockholder meetings to 25%, add procedural requirements, modify stockholder nomination and proposal procedures, address Universal Proxy Rules, modify proxy procedures, and permit lead director to call special board meetin (effective 2024-11-29).","evidence_excerpt":"The Bylaws were amended to, among other things: • Provide that only the board of directors or stockholders that own at least 25% of the outstanding shares of the Company’s common stock can call a special meeting of stockholders;","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1374310/000162828024050040/0001628280-24-050040-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"}