---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-23-006465"
form_type: "8-K"
ticker: "RBB"
cik: "0001499422"
company_name: "RBB Bancorp"
filed_at: "2023-03-14T23:59:59+00:00"
generated_at: "2026-06-18T03:10:06.670084+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Director Catherine Thian resigns from RBB Bancorp board effective March 13, 2023

## Summary
- Catherine Thian resigned from board of RBB Bancorp and Royal Business Bank, effective March 13, 2023, citing health reasons.
- Also stepped down from Asset/Liability, Nomination and Corporate Governance, Director's Loan, and CRA Committees.
- Resigned from boards of RBB Asset Management Company and FAIB Capital Corp., subsidiaries of RBB Bancorp.
- No replacement has been announced; remaining board composition unchanged.

## SEC filing metadata
- accession: 0001437749-23-006465
- form_type: 8-K
- ticker: RBB
- cik: 0001499422
- company_name: RBB Bancorp
- filed_at: 2023-03-14T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1499422/000143774923006465/0001437749-23-006465-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1499422/000143774923006465/rbb20230314_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-23-006465
- JSON: https://secwatch.observer/filing/0001437749-23-006465.json
- Plain text: https://secwatch.observer/filing/0001437749-23-006465.txt

## Key facts
- Executive change
  Catherine Thian resigned as Director at RBB Bancorp.
  - Action: resigned
  - Role: Director
  source text: On March 13, 2023, Ms. Catherine Thian resigned from the board of directors of RBB Bancorp and its wholly-owned subsidiary, Royal Business Bank (collectively, the “Company”), effective March 13, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1499422/000143774923006465/0001437749-23-006465-index.htm

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