Vistra Corp.
MX ˙ BMV ˙ US92840M1027
SecurityMX:VST / Vistra Corp.
InstitutionWellington Management Group Llp
Latest Disclosed Ownership928,037 shares
Latest Disclosed Value $ 139,511,803
Wellington Management Group Llp reports 31.23% decrease in ownership of VST / Vistra Corp.

On May 15, 2026 - Wellington Management Group Llp filed a 13F-HR form disclosing ownership of 928,037 shares of Vistra Corp. (MX:VST) valued at $139,511,803 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,349,438 shares of Vistra Corp.. This represents a change in shares of -31.23% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F VISTRA COM 92840M102 928,037 -421,401 -31.23 139,512 -35.92 0.0037
2026-02-17 2025-12-31 13F VISTRA COM 92840M102 1,349,438 -328,797 -19.59 217,705 -33.79 0.0381
2025-11-14 2025-09-30 13F VISTRA COM 92840M102 1,678,235 -42,740 -2.48 328,800 -1.42 0.0576
2025-08-14 2025-06-30 13F VISTRA COM 92840M102 1,720,975 199,797 13.13 333,542 86.70 0.0605
2025-05-13 2025-03-31 13F VISTRA COM 92840M102 1,521,178 -769,384 -33.59 178,647 -43.43 0.0344
2025-02-12 2024-12-31 13F VISTRA COM 92840M102 2,290,562 -622,002 -21.36 315,800 -8.53 0.0578
2024-11-14 2024-09-30 13F VISTRA COM 92840M102 2,912,564 -1,350,391 -31.68 345,255 -5.80 0.0605
2024-08-14 2024-06-30 13F VISTRA COM 92840M102 4,262,955 -1,390,285 -24.59 366,529 -6.91 0.0654
2024-05-15 2024-03-31 13F VISTRA COM 92840M102 5,653,240 2,133,765 60.63 393,748 190.44 0.0698
2024-02-12 2023-12-31 13F VISTRA COM 92840M102 3,519,475 363,897 11.53 135,570 29.48 0.0253
2023-11-14 2023-09-30 13F VISTRA COM 92840M102 3,155,578 257,264 8.88 104,702 37.62 0.0210
2023-08-14 2023-06-30 13F VISTRA COM 92840M102 2,898,314 2,757,720 1,961.48 76,081 2,154.89 0.0144
2023-05-12 2023-03-31 13F VISTRA COM 92840M102 140,594 130,581 1,304.11 3,374 1,354.31 0.0007
2023-02-13 2022-12-31 13F VISTRA COM 92840M102 10,013 -14,125 -58.52 232 -54.24 0.0000
2022-11-14 2022-09-30 13F VISTRA COM 92840M102 24,138 5,799 31.62 507 21.00 0.0001
2022-08-15 2022-06-30 13F VISTRA COM 92840M102 18,339 -40,761 -68.97 419 -69.51 0.0001
2022-05-16 2022-03-31 13F VISTRA COM 92840M102 59,100 18,600 45.93 1,374 49.02 0.0002
2022-02-11 2021-12-31 13F VISTRA COM 92840M102 40,500 -49,062 -54.78 922 -39.82 0.0001
2021-11-15 2021-09-30 13F VISTRA COM 92840M102 89,562 -34,900 -28.04 1,532 -33.65 0.0003
2021-08-16 2021-06-30 13F VISTRA COM 92840M102 124,462 -47,939 -27.81 2,309 -24.25 0.0004
2021-05-17 2021-03-31 13F VISTRA COM 92840M102 172,401 20,178 13.26 3,048 1.87 0.0005
2021-02-12 2020-12-31 13F VISTRA COM 92840M102 152,223 -352,230 -69.82 2,992 -68.55 0.0006
2020-11-16 2020-09-30 13F VISTRA COM 92840M102 504,453 38,779 8.33 9,514 9.73 0.0020
2020-08-14 2020-06-30 13F VISTRA ENERGY COM 92840M102 465,674 139,147 42.61 8,670 66.38 0.0019
2020-05-14 2020-03-31 13F VISTRA ENERGY COM 92840M102 326,527 -158,847 -32.73 5,211 -53.30 0.0014
2020-02-11 2019-12-31 13F VISTRA ENERGY COM 92840M102 485,374 98,152 25.35 11,159 7.82 0.0023
2019-11-13 2019-09-30 13F VISTRA ENERGY COM 92840M102 387,222 231,917 149.33 10,350 194.45 0.0023
2019-08-14 2019-06-30 13F VISTRA ENERGY COM 92840M102 155,305 126,635 441.70 3,515 370.55 0.0008
2019-05-15 2019-03-31 13F VISTRA ENERGY COM 92840M102 28,670 28,670 747 0.0002
2019-02-14 2018-12-31 13F VISTRA ENERGY COM 92840M102 0 -98,362 -100.00 0 -100.00
2018-11-14 2018-09-30 13F VISTRA ENERGY COM 92840M102 98,362 -1,102,562 -91.81 2,448 -91.38 0.0005
2018-08-14 2018-06-30 13F VISTRA ENERGY COM 92840M102 1,200,924 302,767 33.71 28,414 51.88 0.0063
2018-05-15 2018-03-31 13F VISTRA ENERGY COM 92840M102 898,157 -165,388 -15.55 18,708 -3.98 0.0042
2018-02-13 2017-12-31 13F VISTRA ENERGY COM 92840M102 1,063,545 -1,083,236 -50.46 19,483 -51.44 0.0043
2017-11-13 2017-09-30 13F VISTRA ENERGY COM 92840M102 2,146,781 -173,326 -7.47 40,124 3.00 0.0092
2017-08-14 2017-06-30 13F VISTRA ENERGY COM 92840M102 2,320,107 2,320,107 38,955 0.0092
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.