| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| BARBAS PAUL M | Director | 6555 SIERRA DRIVE, IRVING | /s/ Daniela Gutierrez, as Attorney-in-Fact | 2025-05-19 | 0001176453 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | VST | Common Stock | Sale | -$1.3M | -10.5K | -13.99% | $123.84 | 64.7K | Mar 3, 2025 | Direct | F1, F2 |
| transaction | VST | Common Stock | Sale | -$1.07M | -8.63K | -13.34% | $124.07 | 56K | Mar 3, 2025 | Direct | F3 |
| transaction | VST | Common Stock | Sale | -$624K | -4.99K | -8.9% | $125.12 | 51.1K | Mar 3, 2025 | Direct | F4 |
| transaction | VST | Common Stock | Sale | -$1.77M | -14.4K | -59.46% | $123.60 | 9.79K | Mar 3, 2025 | By Spouse | F2, F5 |
| transaction | VST | Common Stock | Sale | -$1.21M | -9.79K | -100% | $124.06 | 0 | Mar 3, 2025 | By Spouse | F6 |
| Id | Content |
|---|---|
| F1 | Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $123.64 to $123.995, inclusive. For all transactions reported in this Form 4 utilizing a weighted-average price, the reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. |
| F2 | These amounts have been updated to reflect the transfer of 24,135 shares, previously held in a joint account with the Reporting Person's spouse and reported as directly owned by the Reporting Person, to the Reporting Person's spouse, and now reported as indirectly owned by the Reporting Person. The transfer was exempt from Section 16 per Rule 16a-13 and was not reported on a Form 4 filing. |
| F3 | Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $124.00 to $124.99, inclusive. |
| F4 | Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $125.00 to $125.3075, inclusive. |
| F5 | Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $123.38 to $123.995, inclusive. |
| F6 | Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $124.00 to $124.225, inclusive. |
Exhibit 24. Confirming Statement This amendment is being filed to attach the Confirming Statement as an exhibit. All other information reported on the original Form 4 remains accurate.