---
schema_version: "secwatch.filing_event.v1"
accession: "0000842517-25-000080"
form_type: "8-K"
ticker: "ISBA"
cik: "0000842517"
company_name: "ISABELLA BANK CORP"
filed_at: "2025-04-07T23:59:59+00:00"
generated_at: "2026-05-23T20:32:23.541923+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Isabella Bank Corp awards restricted stock to CEO, two officers; amends SERP interest calculation

## Summary
- CEO Schwind eligible for restricted stock at 40% of salary, McDonnell 30%, Schaefer 25%, contingent on 2025 EPS growth and ROE targets.
- Restricted shares vest 100% after 3 years; accelerated vesting on retirement, death, disability, or change in control.
- SERP interest rate changed to Vanguard Federal Money Market Fund yield, daily accrual with partial-year crediting; immaterial changes to payment delays and claims procedures.

## SEC filing metadata
- accession: 0000842517-25-000080
- form_type: 8-K
- ticker: ISBA
- cik: 0000842517
- company_name: ISABELLA BANK CORP
- filed_at: 2025-04-07T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/842517/000084251725000080/0000842517-25-000080-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/842517/000084251725000080/isba-20250404.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000842517-25-000080
- JSON: https://secwatch.observer/filing/0000842517-25-000080.json
- Plain text: https://secwatch.observer/filing/0000842517-25-000080.txt

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