secwatch.observer — SEC 8-K summary
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Issuer:     ISABELLA BANK CORP (ISBA)
CIK:        0000842517
Form:       8-K
Filed at:   2025-10-09T23:59:59+00:00
Accession:  0000842517-25-000199
Event type: leadership
Sentiment:  neutral
Materiality: 0.25
Item codes: 5.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Isabella Bank appoints Brian Tessin, Dow Chief Tax Officer, to its boards effective Oct 6, 2025
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- Brian Tessin appointed to Isabella Bank Corp and Isabella Bank boards, term until 2026 annual meeting.
- Tessin is Chief Tax Officer at Dow Inc. with 30+ years in tax and financial leadership.
- Board determined Tessin is an independent director under SEC rules.
- Press release issued Oct 9, 2025, announcing the appointment.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/842517/000084251725000199/0000842517-25-000199-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/842517/000084251725000199/isba-20251006.htm
  HTML page:      https://secwatch.observer/filing/0000842517-25-000199

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer