secwatch.observer — SEC 8-K summary
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Issuer:     ISABELLA BANK CORP (ISBA)
CIK:        0000842517
Form:       8-K
Filed at:   2026-09-28T20:30:15+00:00
Accession:  0000842517-26-000224
Event type: m_and_a
Sentiment:  neutral
Materiality: 0.30
Item codes: 8.01, 9.01
LLM model:  deepseek-v4.1-flash:cloud@v2

Isabella Bank sets Oct 23 election deadline for Grand River merger; cash consideration ~$5.71/share
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- Grand River shareholders must submit Election Form to Continental Stock Transfer & Trust by 5:00 p.m. ET on Friday, October 23, 2026, to elect cash or Isabella common stock.
- Election materials mailed on/about September 28, 2026 to holders of record as of September 24, 2026.
- Each Grand River share converts into either cash (estimated ~$5.71 per share) or Isabella common stock at an estimated exchange ratio of 0.1413, subject to proration.
- Cash consideration pool is $18,262,391; exchange ratio uses 839,003 Isabella shares, based on assumed 9,136,529 Grand River shares outstanding at closing.
- Merger remains subject to regulatory approvals and customary closing conditions; parties expect to complete the deal in Q4 2026.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/842517/000084251726000224/0000842517-26-000224-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/842517/000084251726000224/isba-20260928.htm
  HTML page:      https://secwatch.observer/filing/0000842517-26-000224

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