Vistra Corp.
MX ˙ BMV ˙ US92840M1027
SecurityMX:VST / Vistra Corp.
InstitutionNorthwestern Mutual Wealth Management Co
Latest Disclosed Ownership391,296 shares
Latest Disclosed Value $ 58,823,655
Northwestern Mutual Wealth Management Co reports 528.54% increase in ownership of VST / Vistra Corp.

On May 7, 2026 - Northwestern Mutual Wealth Management Co filed a 13F-HR form disclosing ownership of 391,296 shares of Vistra Corp. (MX:VST) valued at $58,823,655 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 62,255 shares of Vistra Corp.. This represents a change in shares of 528.54% 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)
2026-05-07 2026-03-31 13F VISTRA COM 92840M102 391,296 329,041 528.54 58,824 485.71 0.0362
2026-02-10 2025-12-31 13F/A-1 VISTRA COM 92840M102 62,255 10,237 19.68 10,044 -1.45 0.0064
2026-02-05 2025-12-31 13F VISTRA COM 92840M102 1,090 -50,928 36 0.0000
2025-11-14 2025-09-30 13F VISTRA COM 92840M102 52,018 4,963 10.55 10,191 11.76 0.0068
2025-08-13 2025-06-30 13F VISTRA COM 92840M102 47,055 -27,305 -36.72 9,120 4.43 0.0066
2025-05-14 2025-03-31 13F VISTRA COM 92840M102 74,360 4,761 6.84 8,733 -8.99 0.0071
2025-02-11 2024-12-31 13F VISTRA COM 92840M102 69,599 44,902 181.81 9,595 227.81 0.0081
2024-11-12 2024-09-30 13F VISTRA COM 92840M102 24,697 -33,627 -57.66 2,928 -41.62 0.0026
2024-08-16 2024-06-30 13F VISTRA COM 92840M102 58,324 19,957 52.02 5,015 87.65 0.0049
2024-05-15 2024-03-31 13F VISTRA COM 92840M102 38,367 28,346 282.87 2,672 592.23 0.0027
2024-02-13 2023-12-31 13F VISTRA COM 92840M102 10,021 5,799 137.35 386 175.71 0.0004
2023-11-14 2023-09-30 13F VISTRA COM 92840M102 4,222 -3,232 -43.36 140 -28.21 0.0002
2023-08-14 2023-06-30 13F VISTRA COM 92840M102 7,454 -17 -0.23 196 8.94 0.0003
2023-05-15 2023-03-31 13F VISTRA COM 92840M102 7,471 -173 -2.26 179 1.13 0.0003
2023-02-21 2022-12-31 13F VISTRA COM 92840M102 7,644 -5,146 -40.23 177 -34.20 0.0003
2022-11-14 2022-09-30 13F VISTRA COM 92840M102 12,790 4,725 58.59 269 46.20 0.0005
2022-08-04 2022-06-30 13F VISTRA COM 92840M102 8,065 1,282 18.90 184 16.46 0.0003
2022-05-09 2022-03-31 13F VISTRA COM 92840M102 6,783 564 9.07 158 11.27 0.0003
2022-02-03 2021-12-31 13F VISTRA COM 92840M102 6,219 3,088 98.63 142 167.92 0.0002
2021-11-15 2021-09-30 13F VISTRA COM 92840M102 3,131 187 6.35 53 -1.85 0.0001
2021-08-13 2021-06-30 13F VISTRA COM 92840M102 2,944 2,535 619.80 54 671.43 0.0001
2021-05-14 2021-03-31 13F VISTRA COM 92840M102 409 409 7 0.0000
2020-11-13 2020-09-30 13F VISTRA ENERGY COM 92840M102 0 -2,500 -100.00 0 -100.00
2020-08-14 2020-06-30 13F VISTRA ENERGY COM 92840M102 2,500 2,462 6,478.95 47 4,600.00 0.0001
2020-05-08 2020-03-31 13F VISTRA ENERGY COM 92840M102 38 -23 -37.70 1 0.00 0.0000
2020-02-13 2019-12-31 13F VISTRA ENERGY COM 92840M102 61 -1,236 -95.30 1 -97.14 0.0000
2019-11-12 2019-09-30 13F VISTRA ENERGY COM 92840M102 1,297 954 278.13 35 337.50 0.0001
2019-08-12 2019-06-30 13F VISTRA ENERGY COM 92840M102 343 343 8 0.0000
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.