---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-23-034058"
form_type: "8-K"
ticker: "RBB"
cik: "0001499422"
company_name: "RBB Bancorp"
filed_at: "2023-12-11T23:59:59+00:00"
generated_at: "2026-06-07T14:49:17.315956+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# RBB Bancorp appoints Lynn Hopkins as Interim CFO; Alex Ko resigns

## Summary
- Lynn Hopkins appointed Interim EVP and CFO effective Dec 7, 2023.
- Alex Ko resigned voluntarily for personal reasons; will assist as consultant through Dec 31, 2023.
- Hopkins has 30+ years experience, most recently CFO at Banc of California ($9.3B assets).
- Employment agreement: $400K base salary, term through May 31, 2024 with 6-month auto-renewal.
- Ko's departure and Hopkins' appointment announced via press release on Dec 11, 2023.

## SEC filing metadata
- accession: 0001437749-23-034058
- form_type: 8-K
- ticker: RBB
- cik: 0001499422
- company_name: RBB Bancorp
- filed_at: 2023-12-11T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1499422/000143774923034058/0001437749-23-034058-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1499422/000143774923034058/rbb20231206_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-23-034058
- JSON: https://secwatch.observer/filing/0001437749-23-034058.json
- Plain text: https://secwatch.observer/filing/0001437749-23-034058.txt

## Key facts
- Executive change
  Alex Ko resigned as Chief Financial Officer at RBB Bancorp.
  - Action: resigned
  - Role: Chief Financial Officer
  source text: Mr. Alex Ko informed the Board he is voluntarily resigning from his position as CFO due to personal reasons and will be pursuing other opportunities.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1499422/000143774923034058/0001437749-23-034058-index.htm
- Executive change
  Lynn M. Hopkins was appointed as Interim Executive Vice President and Chief Financial Officer at RBB Bancorp.
  - Action: appointed
  - Role: Interim Executive Vice President and Chief Financial Officer
  source text: On December 7, 2023, RBB Bancorp (the “Company”) announced the appointment of Ms. Lynn M. Hopkins as Interim Executive Vice President and Chief Financial Officer of the Company and the Company’s subsidiary, Royal Business Bank (the “Bank”), with such appointment effective December 7, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1499422/000143774923034058/0001437749-23-034058-index.htm

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