Vistra Corp.
MX ˙ BMV ˙ US92840M1027
SecurityMX:VST / Vistra Corp.
InstitutionAppaloosa Lp
Latest Disclosed Ownership2,022,332 shares
Latest Disclosed Value $ 304,017,170
Appaloosa Lp reports 114.00% increase in ownership of VST / Vistra Corp.

On May 15, 2026 - Appaloosa Lp filed a 13F-HR form disclosing ownership of 2,022,332 shares of Vistra Corp. (MX:VST) valued at $304,017,170 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 945,000 shares of Vistra Corp.. This represents a change in shares of 114.00% 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 2,022,332 1,077,332 114.00 304,017 99.41 5.1238
2026-02-17 2025-12-31 13F VISTRA COM 92840M102 945,000 -300,000 -24.10 152,457 -37.50 2.2015
2025-11-13 2025-09-30 13F VISTRA COM 92840M102 1,245,000 -555,000 -30.83 243,920 -30.08 3.3035
2025-08-14 2025-06-30 13F VISTRA COM 92840M102 1,800,000 -500,000 -21.74 348,858 29.15 5.4095
2025-05-15 2025-03-31 13F VISTRA COM 92840M102 2,300,000 -400,000 -14.81 270,112 -27.44 3.2222
2025-02-10 2024-12-31 13F VISTRA COM 92840M102 2,700,000 1,429,612 112.53 372,249 147.19 5.7589
2024-11-14 2024-09-30 13F VISTRA COM 92840M102 1,270,388 1,270,388 150,592 2.2370
2020-11-16 2020-09-30 13F VISTRA ENERGY COM 92840M102 0 -1,120,000 -100.00 0 -100.00
2020-08-14 2020-06-30 13F VISTRA ENERGY COM 92840M102 1,120,000 -90,000 -7.44 20,854 7.98 0.3621
2020-05-15 2020-03-31 13F VISTRA ENERGY COM 92840M102 1,210,000 -509,100 -29.61 19,312 -51.14 0.5903
2020-02-14 2019-12-31 13F VISTRA ENERGY COM 92840M102 1,719,100 0 0.00 39,522 -13.99 0.9929
2019-11-14 2019-09-30 13F VISTRA ENERGY COM 92840M102 1,719,100 0 0.00 45,952 18.07 1.3459
2019-08-14 2019-06-30 13F VISTRA ENERGY COM 92840M102 1,719,100 -541,870 -23.97 38,920 -33.87 0.4203
2019-05-15 2019-03-31 13F VISTRA ENERGY COM 92840M102 2,260,970 -271,773 -10.73 58,853 1.52 1.6873
2019-02-14 2018-12-31 13F VISTRA ENERGY COM 92840M102 2,532,743 548,998 27.67 57,974 17.46 2.8659
2018-11-14 2018-09-30 13F VISTRA ENERGY COM 92840M102 1,983,745 112,794 6.03 49,356 11.50 0.8675
2018-08-14 2018-06-30 13F VISTRA ENERGY COM 92840M102 1,870,951 1,870,951 44,267 0.5039
2018-05-15 2018-03-31 13F VISTRA ENERGY COM 92840M102 0 -961,285 -100.00 0 -100.00
2018-02-14 2017-12-31 13F VISTRA ENERGY COM 92840M102 961,285 961,285 17,611 0.1641
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.