---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-24-038309"
form_type: "8-K"
ticker: "BCAL"
cik: "0001795815"
company_name: "California BanCorp \\ CA"
filed_at: "2024-09-26T23:59:59+00:00"
generated_at: "2026-05-31T01:38:26.487560+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# California BanCorp COO Thomas Sa resigns; Michele Wirfel appointed

## Summary
- Thomas Sa resigned as COO of California BanCorp and its bank subsidiary on Sept 20, 2024; no disagreement cited.
- Michele Wirfel appointed COO and EVP effective Sept 20; she previously served as Chief Administrative Officer post-merger.
- Wirfel has 30+ years banking experience, including Chief Banking Officer at predecessor California Bank of Commerce since 2018.
- Wirfel will report to CEO Steven Shelton and operate from the Walnut Creek office.

## SEC filing metadata
- accession: 0001493152-24-038309
- form_type: 8-K
- ticker: BCAL
- cik: 0001795815
- company_name: California BanCorp \ CA
- filed_at: 2024-09-26T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1795815/000149315224038309/0001493152-24-038309-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1795815/000149315224038309/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-24-038309
- JSON: https://secwatch.observer/filing/0001493152-24-038309.json
- Plain text: https://secwatch.observer/filing/0001493152-24-038309.txt

## Key facts
- Executive change
  Thomas A. Sa resigned as Chief Operating Officer at California BanCorp \ CA.
  - Action: resigned
  - Role: Chief Operating Officer
  source text: On September 20, 2024, Thomas A. Sa resigned as Chief Operating Officer of California BanCorp (the “Company”) and its wholly-owned subsidiary, California Bank of Commerce, N.A.(the “Bank”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1795815/000149315224038309/0001493152-24-038309-index.htm
- Executive change
  Michele M. Wirfel was appointed as Chief Operating Officer at California BanCorp \ CA.
  - Action: appointed
  - Role: Chief Operating Officer
  source text: Michele M. Wirfel, the Chief Administrative Officer of the Company, was appointed to the Chief Operating Officer position of the Company and the Bank on September 20, 2024 following Mr. Sa’s resignation.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1795815/000149315224038309/0001493152-24-038309-index.htm

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