| 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 | 2025-11-26 | 0001703634 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | VST | Common Stock | Sale | -$1.42M | -8.22K | -9.33% | $173.35 | 79.9K | Nov 24, 2025 | Direct |
Exhibit 24. Power of Attorney