{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-22-027863","form_type":"8-K","ticker":"IBOC","cik":"0000315709","company_name":"INTERNATIONAL BANCSHARES CORP","filed_at":"2022-02-28T23:59:59+00:00","discovered_at":"2026-05-14T18:04:09.218513+00:00","generated_at":"2026-06-27T03:51:54.193775+00:00","sec_items":["5.02","8.01","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"IBC appoints Diana G. Zuniga to Board of Directors, effective Feb 23, 2022","bullets":["Diana G. Zuniga appointed to IBC Board filling Irving Greenblum's retirement vacancy.","Zuniga has served as advisory director of IBC Austin since 2005; 35+ years real estate.","Zuniga is President/Owner of Investors Alliance, a commercial real estate firm founded 1996.","Standard non-employee director compensation: $1,000 per board meeting, $400 per committee, potential $2,000 year-end.","No stock options or equity-based awards granted for board service."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-22-027863","json":"https://secwatch.observer/filing/0001104659-22-027863.json","markdown":"https://secwatch.observer/filing/0001104659-22-027863.md","text":"https://secwatch.observer/filing/0001104659-22-027863.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/315709/000110465922027863/0001104659-22-027863-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/315709/000110465922027863/tm227684d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-27T03:51:54.193775+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":"3529326364","claim":"Diana G. Zuniga was appointed as Director at INTERNATIONAL BANCSHARES CORP.","evidence_excerpt":"On February 28, 2022 International Bancshares Corporation (“IBC”) issued a news release announcing Ms. Diana G. Zuniga’s appointment to IBC’s Board of Directors (the “Board”), effective February 23, 2022, to fill the vacancy created by Irving Greenblum’s retirement.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/315709/000110465922027863/0001104659-22-027863-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"4ab7348121","claim":"Irving Greenblum retired as Director at INTERNATIONAL BANCSHARES CORP.","evidence_excerpt":"On February 28, 2022 International Bancshares Corporation (“IBC”) issued a news release announcing Ms. Diana G. Zuniga’s appointment to IBC’s Board of Directors (the “Board”), effective February 23, 2022, to fill the vacancy created by Irving Greenblum’s retirement.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/315709/000110465922027863/0001104659-22-027863-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retired"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}