Vistra Corp.
MX ˙ BMV ˙ US92840M1027
SecurityMX:VST / Vistra Corp.
InstitutionUtah Retirement Systems
Latest Disclosed Ownership54,994 shares
Latest Disclosed Value $ 8,267,248
Utah Retirement Systems reports 1.77% decrease in ownership of VST / Vistra Corp.

On May 15, 2026 - Utah Retirement Systems filed a 13F-HR form disclosing ownership of 54,994 shares of Vistra Corp. (MX:VST) valued at $8,267,248 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 55,985 shares of Vistra Corp.. This represents a change in shares of -1.77% 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 54,994 -991 -1.77 8,267 -8.47 0.0845
2026-02-17 2025-12-31 13F VISTRA COM 92840M102 55,985 0 0.00 9,032 -17.65 0.0859
2025-11-14 2025-09-30 13F VISTRA COM 92840M102 55,985 75 0.13 10,969 1.23 0.1065
2025-08-14 2025-06-30 13F VISTRA COM 92840M102 55,910 -417 -0.74 10,836 63.79 0.1132
2025-05-15 2025-03-31 13F VISTRA COM 92840M102 56,327 0 0.00 6,615 -14.81 0.0763
2025-02-14 2024-12-31 13F VISTRA COM 92840M102 56,327 -700 -1.23 7,766 14.88 0.0856
2024-11-14 2024-09-30 13F VISTRA COM 92840M102 57,027 200 0.35 6,760 38.36 0.0763
2024-08-14 2024-06-30 13F VISTRA COM 92840M102 56,827 -4,400 -7.19 4,886 14.56 0.0580
2024-05-15 2024-03-31 13F VISTRA COM 92840M102 61,227 -1,700 -2.70 4,264 75.98 0.0499
2024-02-14 2023-12-31 13F VISTRA COM 92840M102 62,927 -1,600 -2.48 2,424 13.17 0.0309
2023-11-14 2023-09-30 13F VISTRA COM 92840M102 64,527 100 0.16 2,141 26.61 0.0306
2023-08-14 2023-06-30 13F VISTRA COM 92840M102 64,427 -5,300 -7.60 1,691 1.08 0.0235
2023-05-16 2023-03-31 13F VISTRA COM 92840M102 69,727 0 0.00 1,673 3.46 0.0242
2023-02-15 2022-12-31 13F VISTRA COM 92840M102 69,727 -3,900 -5.30 1,618 4.59 0.0257
2022-11-14 2022-09-30 13F VISTRA COM 92840M102 73,627 -2,300 -3.03 1,546 -10.89 0.0258
2022-08-16 2022-06-30 13F VISTRA COM 92840M102 75,927 -9,400 -11.02 1,735 -12.55 0.0278
2022-05-13 2022-03-31 13F VISTRA COM 92840M102 85,327 -1,400 -1.61 1,984 0.46 0.0264
2022-02-14 2021-12-31 13F VISTRA COM 92840M102 86,727 200 0.23 1,975 33.45 0.0244
2021-11-16 2021-09-30 13F VISTRA COM 92840M102 86,527 -4,600 -5.05 1,480 -12.43 0.0200
2021-08-16 2021-06-30 13F VISTRA COM 92840M102 91,127 -2,400 -2.57 1,690 2.24 0.0218
2021-05-17 2021-03-31 13F VISTRA COM 92840M102 93,527 -4,200 -4.30 1,653 -13.95 0.0230
2021-02-16 2020-12-31 13F VISTRA COM 92840M102 97,727 4,200 4.49 1,921 8.90 0.0273
2020-11-16 2020-09-30 13F VISTRA COM 92840M102 93,527 600 0.65 1,764 1.97 0.0293
2020-08-13 2020-06-30 13F/A-1 VISTRA ENERGY COM 92840M102 92,927 12,300 15.26 1,730 34.42 0.0318
2020-08-13 2020-06-30 13F VISTRA ENERGY COM 92840M102 92,927 12,300 1,730 31,752.4994
2020-05-15 2020-03-31 13F VISTRA ENERGY COM 92840M102 80,627 0 0.00 1,287 -30.55 0.0278
2020-02-12 2019-12-31 13F VISTRA ENERGY COM 92840M102 80,627 200 0.25 1,853 -13.81 0.0326
2019-11-14 2019-09-30 13F VISTRA ENERGY COM 92840M102 80,427 2,700 3.47 2,150 22.16 0.0409
2019-08-14 2019-06-30 13F VISTRA ENERGY COM 92840M102 77,727 3,121 4.18 1,760 -9.37 0.0337
2019-05-15 2019-03-31 13F VISTRA ENERGY COM 92840M102 74,606 -1,094 -1.45 1,942 12.06 0.0385
2019-02-08 2018-12-31 13F VISTRA ENERGY COM 92840M102 75,700 -500 -0.66 1,733 -8.60 0.0392
2018-11-13 2018-09-30 13F VISTRA ENERGY COM 92840M102 76,200 400 0.53 1,896 5.74 0.0367
2018-08-10 2018-06-30 13F VISTRA ENERGY COM 92840M102 75,800 30,900 68.82 1,793 91.76 0.0371
2018-05-15 2018-03-31 13F VISTRA ENERGY COM 92840M102 44,900 100 0.22 935 13.89 0.0199
2018-02-14 2017-12-31 13F VISTRA ENERGY COM 92840M102 44,800 500 1.13 821 -0.85 0.0173
2017-11-13 2017-09-30 13F VISTRA ENERGY COM 92840M102 44,300 200 0.45 828 11.89 0.0186
2017-08-08 2017-06-30 13F VISTRA ENERGY COM 92840M102 44,100 44,100 740 0.0172
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.