| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Freeland Richard Joseph | Director | C/O HYLIION HOLDING CORP., 1202 BMC DRIVE, SUITE 100, CEDAR PARK | /s/ Richard J. Freeland | 2025-08-21 | 0001327988 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | HYLN | Common Stock | Purchase | $102K | +65K | +41.19% | $1.57 | 223K | Aug 21, 2025 | Direct |