| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Kirby Carrie Lee | EVP and Chief Admin. Officer | 6555 SIERRA DRIVE, IRVING | /s/ Daniela Gutierrez, as Attorney-in-Fact | 21 May 2025 | 0001703633 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | VST | Common Stock | Options Exercise | $2,125,440 | +108,000 | +49% | $19.68 | 326,239 | 19 May 2025 | Direct | |
| transaction | VST | Common Stock | Sale | $16,873,871 | -107,494 | -33% | $156.98 | 218,745 | 19 May 2025 | Direct | F1 |
| transaction | VST | Common Stock | Sale | $79,725 | -506 | -0.23% | $157.56 | 218,239 | 19 May 2025 | Direct | F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | VST | 2018 Employee Stock Option (right to buy) | Options Exercise | $2,125,440 | -108,000 | -100% | $19.68 | 0 | 19 May 2025 | Common Stock | 108,000 | $19.68 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $156.49 to $157.457, 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 | Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $157.53 to $157.595, 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. |
| F3 | The 2018 employee stock options vested 50% on April 9, 2022 and 50% on April 9, 2023. |