| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| VST | EVP and Chief Admin. Officer | May 17, 2022 | Sale | $25.09 | 20,000 | 501,800 | 128,475 | May 19, 2022, 06:36 PM |
| VST | EVP and Chief Admin. Officer | Feb 25, 2022 | Option Exercise | $21.90 | 6,103 | 133,656 | 119,218 | Mar 01, 2022, 09:27 PM |
| VST | EVP and Chief Admin. Officer | Feb 22, 2022 | Option Exercise | $21.21 | 2,148 | 45,559 | 106,402 | Feb 24, 2022, 07:37 PM |
| VST | EVP and Chief Admin. Officer | Mar 31, 2021 | Option Exercise | $17.68 | 14,784 | 261,381 | 108,550 | Apr 02, 2021, 08:13 PM |
| VST | EVP and Chief Admin. Officer | Feb 26, 2021 | Option Exercise | $17.25 | 904 | 15,594 | 65,234 | Mar 01, 2021, 09:36 PM |
| VST | EVP and Chief Admin. Officer | Feb 25, 2021 | Option Exercise | $22.76 | 1,209 | 27,517 | 66,138 | Mar 01, 2021, 09:36 PM |
| VST | EVP and Chief Admin. Officer | Oct 02, 2020 | Option Exercise | $17.99 | 3,001 | 53,988 | 67,347 | Oct 06, 2020, 07:06 PM |
| VST | EVP and Chief Admin. Officer | May 07, 2020 | Option Exercise | $17.95 | 916 | 16,442 | 70,348 | May 11, 2020, 08:59 PM |
| VST | EVP and Chief Admin. Officer | Mar 05, 2020 | Sale | $20.76 | 962 | 19,972 | 71,264 | Mar 09, 2020, 04:55 PM |
| VST | EVP and Chief Admin. Officer | Nov 11, 2019 | Sale | $26.15 | 3,049 | 79,731 | 59,172 | Mar 09, 2020, 04:54 PM |
| VST | EVP and Chief Admin. Officer | Dec 02, 2019 | Option Exercise | $14.03 | 19,000 | 266,570 | 78,172 | Dec 04, 2019, 04:25 PM |
| VST | EVP and Chief Admin. Officer | Dec 02, 2019 | Sale | $26.47 | 19,000 | 503,009 | 77,372 | Dec 04, 2019, 04:25 PM |
| VST | EVP and Chief Admin. Officer | Nov 11, 2019 | Sale | $26.15 | 3,049 | 79,731 | 59,172 | Nov 13, 2019, 04:27 PM |
| VST | EVP and Chief Admin. Officer | May 08, 2019 | Sale | $25.31 | 1,065 | 26,955 | 62,221 | May 10, 2019, 04:51 PM |
| VST | EVP and Chief Admin. Officer | Nov 07, 2018 | Sale | $24.61 | 3,090 | 76,045 | 51,991 | Nov 08, 2018, 04:01 PM |
| VST | EVP and Chief Admin. Officer | Nov 06, 2018 | Sale | $25.42 | 3,250 | 82,615 | 55,081 | Nov 08, 2018, 04:01 PM |
| VST | EVP and Chief Admin. Officer | Nov 07, 2017 | Sale | $19.27 | 3,297 | 63,546 | 58,331 | Dec 05, 2017, 01:35 PM |
| VST | See Remarks | Nov 07, 2017 | Sale | $19.27 | 3,297 | 63,546 | 64,925 | Nov 09, 2017, 03:01 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| VST | EVP and Chief Admin. Officer | May 17, 2022 | Sale | 501,800 |
| VST | EVP and Chief Admin. Officer | Feb 25, 2022 | Option Exercise | 133,656 |
| VST | EVP and Chief Admin. Officer | Feb 22, 2022 | Option Exercise | 45,559 |
| VST | EVP and Chief Admin. Officer | Mar 31, 2021 | Option Exercise | 261,381 |
| VST | EVP and Chief Admin. Officer | Feb 26, 2021 | Option Exercise | 15,594 |
| VST | EVP and Chief Admin. Officer | Feb 25, 2021 | Option Exercise | 27,517 |
| VST | EVP and Chief Admin. Officer | Oct 02, 2020 | Option Exercise | 53,988 |
| VST | EVP and Chief Admin. Officer | May 07, 2020 | Option Exercise | 16,442 |
| VST | EVP and Chief Admin. Officer | Mar 05, 2020 | Sale | 19,972 |
| VST | EVP and Chief Admin. Officer | Nov 11, 2019 | Sale | 79,731 |
| VST | EVP and Chief Admin. Officer | Dec 02, 2019 | Option Exercise | 266,570 |
| VST | EVP and Chief Admin. Officer | Dec 02, 2019 | Sale | 503,009 |
| VST | EVP and Chief Admin. Officer | Nov 11, 2019 | Sale | 79,731 |
| VST | EVP and Chief Admin. Officer | May 08, 2019 | Sale | 26,955 |
| VST | EVP and Chief Admin. Officer | Nov 07, 2018 | Sale | 76,045 |
| VST | EVP and Chief Admin. Officer | Nov 06, 2018 | Sale | 82,615 |
| VST | EVP and Chief Admin. Officer | Nov 07, 2017 | Sale | 63,546 |
| VST | See Remarks | Nov 07, 2017 | Sale | 63,546 |