{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-23-024185","form_type":"8-K","ticker":"IBOC","cik":"0000315709","company_name":"INTERNATIONAL BANCSHARES CORP","filed_at":"2023-02-22T23:59:59+00:00","discovered_at":"2026-05-14T18:03:47.594905+00:00","generated_at":"2026-06-19T05:36:45.228180+00:00","sec_items":["5.03","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"high","headline":"IBC amends bylaws to adopt universal proxy card rules per SEC requirements","bullets":["Board approved amended bylaws effective February 21, 2023.","Section 12 updated for dissident shareholder nominations and universal proxy card compliance.","Amendment addresses SEC universal proxy card requirements for contested director elections.","No other material changes to governance or fiscal year."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-23-024185","json":"https://secwatch.observer/filing/0001104659-23-024185.json","markdown":"https://secwatch.observer/filing/0001104659-23-024185.md","text":"https://secwatch.observer/filing/0001104659-23-024185.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/315709/000110465923024185/0001104659-23-024185-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/315709/000110465923024185/tm237311d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-19T05:36:45.228180+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":"aea69f7bf123c845d00b7726678d3f0691b57ae6","claim":"INTERNATIONAL BANCSHARES CORP: Amended Section 12 of the By-laws to comply with new SEC universal proxy card requirements for contested director elections and shareholder proposals (effective 2023-02-21).","evidence_excerpt":"Section 12 of the By-laws was amended based on the recent SEC requirements for a Universal Proxy Card in the event of a contested election of directors and shareholder proposal requirements.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/315709/000110465923024185/0001104659-23-024185-index.htm","confidence":0.95,"family_label":"Governance Changes","details":[{"label":"Change","value":"bylaw amendment"},{"label":"Effective","value":"2023-02-21"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}