---
schema_version: "secwatch.filing_event.v1"
accession: "0000842517-26-000002"
form_type: "8-K"
ticker: "ISBA"
cik: "0000842517"
company_name: "ISABELLA BANK CORP"
filed_at: "2026-01-05T23:59:59+00:00"
generated_at: "2026-05-16T11:46:08.866208+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Isabella Bank appoints Gerald J. Ritzert as CFO effective January 5, 2026

## Summary
- Ritzert, age 56, brings over 30 years of banking finance experience.
- Most recently EVP and CFO of First National Bank & Trust in Beloit, WI since 2021.
- Previously served as CFO of Dollar Bank, FSB in Pittsburgh, PA.
- Succeeds Neil McDonnell, who had been acting interim CFO since August 2025.
- Ritzert is a CPA with a B.S. in Accounting from Robert Morris College.

## SEC filing metadata
- accession: 0000842517-26-000002
- form_type: 8-K
- ticker: ISBA
- cik: 0000842517
- company_name: ISABELLA BANK CORP
- filed_at: 2026-01-05T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/842517/000084251726000002/0000842517-26-000002-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/842517/000084251726000002/isba-20260105.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000842517-26-000002
- JSON: https://secwatch.observer/filing/0000842517-26-000002.json
- Plain text: https://secwatch.observer/filing/0000842517-26-000002.txt

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