| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Rupp Vicki L | Director | 4399 HACKETT ROAD, SAGINAW | /s/ Jennifer L. Gill, By Power of Attorney | 03 Dec 2025 | 0001795323 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ISBA | common | Award | $1,174 | +27 | +0.28% | $43.50 | 9,558 | 01 Dec 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Includes shares acquired through quarterly dividend reinvestment. |