| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Walker David B. | Director | ONE DAUCH DRIVE, DETROIT | /s/ Kristen M. Netschke, by PoA from David B. Walker | 16 Mar 2026 | 0002081636 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DCH | Common Stock | Purchase | $182,000 | +35,000 | $5.20 | 35,000 | 13 Mar 2026 | Direct |