---
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"
generated_at: "2026-06-27T03:51:54.193775+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# IBC appoints Diana G. Zuniga to Board of Directors, effective Feb 23, 2022

## Summary
- 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.

## SEC filing metadata
- 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
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 5.02, 8.01, 7.01, 9.01
- 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

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-22-027863
- JSON: https://secwatch.observer/filing/0001104659-22-027863.json
- Plain text: https://secwatch.observer/filing/0001104659-22-027863.txt

## Key facts
- Executive change
  Diana G. Zuniga was appointed as Director at INTERNATIONAL BANCSHARES CORP.
  - Action: appointed
  - Role: Director
  source text: 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_url: https://www.sec.gov/Archives/edgar/data/315709/000110465922027863/0001104659-22-027863-index.htm
- Executive change
  Irving Greenblum retired as Director at INTERNATIONAL BANCSHARES CORP.
  - Action: retired
  - Role: Director
  source text: 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_url: https://www.sec.gov/Archives/edgar/data/315709/000110465922027863/0001104659-22-027863-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.