| 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 | 21 Aug 2025 | 0001327988 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | HYLN | Common Stock | Purchase | $102,050 | +65,000 | +41% | $1.57 | 222,798 | 21 Aug 2025 | Direct |