| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Moore Stephanie Zapata | EVP and General Counsel | 6555 SIERRA DRIVE, IRVING | /s/ Daniela Gutierrez, as Attorney-in-Fact | 02 Dec 2025 | 0001703634 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | VST | Common Stock | Gift | $0 | -3,602 | -4.5% | $0.000000 | 76,252 | 28 Nov 2025 | Direct |