Vistra Corp.
MX ˙ BMV ˙ US92840M1027
SecurityMX:VST / Vistra Corp.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership1,691,315 shares
Latest Disclosed Value $ 254,247,808
Janus Henderson Group Plc reports 42.84% decrease in ownership of VST / Vistra Corp.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 1,691,315 shares of Vistra Corp. (MX:VST) valued at $254,247,808 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,958,740 shares of Vistra Corp.. This represents a change in shares of -42.84% 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)
2026-05-18 2026-03-31 13F/A-1 VISTRA COM 92840M102 1,691,315 -1,267,425 -42.84 254,248 -46.74 0.0429
2026-05-15 2026-03-31 13F VISTRA COM 92840M102 1,691,315 -1,267,425 254,248 0.0472
2026-02-17 2025-12-31 13F VISTRA COM 92840M102 2,958,740 65,795 2.27 477,337 -15.78 0.2138
2025-11-14 2025-09-30 13F VISTRA COM 92840M102 2,892,945 -341,397 -10.56 566,770 -9.58 0.2587
2025-08-14 2025-06-30 13F VISTRA COM 92840M102 3,234,342 -330,199 -9.26 626,840 47.72 0.3072
2025-05-15 2025-03-31 13F VISTRA COM 92840M102 3,564,541 293,076 8.96 424,356 -5.92 0.2326
2025-02-14 2024-12-31 13F VISTRA COM 92840M102 3,271,465 -510,443 -13.50 451,058 0.61 0.2293
2024-11-14 2024-09-30 13F VISTRA COM 92840M102 3,781,908 1,000,307 35.96 448,320 87.43 0.2295
2024-08-14 2024-06-30 13F VISTRA COM 92840M102 2,781,601 -1,008,178 -26.60 239,187 -9.38 0.1281
2024-05-15 2024-03-31 13F VISTRA COM 92840M102 3,789,779 -1,937,166 -33.83 263,948 19.66 0.1440
2024-02-14 2023-12-31 13F VISTRA COM 92840M102 5,726,945 1,692,266 41.94 220,584 64.77 0.1316
2023-11-14 2023-09-30 13F VISTRA COM 92840M102 4,034,679 -144,077 -3.45 133,871 22.04 0.0877
2023-08-14 2023-06-30 13F VISTRA COM 92840M102 4,178,756 4,135 0.10 109,692 9.48 0.0682
2023-05-15 2023-03-31 13F VISTRA COM 92840M102 4,174,621 -14,457 -0.35 100,191 3.09 0.0661
2023-02-14 2022-12-31 13F VISTRA COM 92840M102 4,189,078 2,650,556 172.28 97,187 200.81 0.0694
2023-01-13 2022-09-30 13F/A-1 VISTRA COM 92840M102 1,538,522 34,470 2.29 32,308 -5.99 0.0242
2022-11-14 2022-09-30 13F VISTRA COM 92840M102 1,538,522 34,470 32,308 0.0242
2022-08-15 2022-06-30 13F VISTRA COM 92840M102 1,504,052 154,195 11.42 34,367 9.51 0.0237
2022-05-16 2022-03-31 13F VISTRA COM 92840M102 1,349,857 -210,745 -13.50 31,383 -11.68 0.0152
2022-02-14 2021-12-31 13F VISTRA COM 92840M102 1,560,602 -441,732 -22.06 35,535 3.78 0.0148
2021-11-16 2021-09-30 13F VISTRA COM 92840M102 2,002,334 87,997 4.60 34,240 -3.58 0.0150
2021-08-16 2021-06-30 13F VISTRA COM 92840M102 1,914,337 166,717 9.54 35,511 14.93 0.0152
2021-05-17 2021-03-31 13F VISTRA COM 92840M102 1,747,620 -26,036 -1.47 30,898 -11.39 0.0141
2021-02-16 2020-12-31 13F VISTRA COM 92840M102 1,773,656 -328,832 -15.64 34,870 -12.06 0.0162
2020-11-16 2020-09-30 13F VISTRA COM 92840M102 2,102,488 -245,725 -10.46 39,652 -9.31 0.0207
2020-08-14 2020-06-30 13F VISTRA ENERGY COM 92840M102 2,348,213 -251,871 -9.69 43,724 5.36 0.0245
2020-05-14 2020-03-31 13F VISTRA ENERGY COM 92840M102 2,600,084 -2,404,955 -48.05 41,498 -63.94 0.0286
2020-02-18 2019-12-31 13F VISTRA ENERGY COM 92840M102 5,005,039 -303,865 -5.72 115,066 -18.91 0.0589
2019-11-14 2019-09-30 13F VISTRA ENERGY COM 92840M102 5,308,904 -777,037 -12.77 141,907 2.99 0.0769
2019-07-31 2019-06-30 13F VISTRA ENERGY COM 92840M102 6,085,941 1,284,924 26.76 137,786 10.25 0.0750
2019-04-30 2019-03-31 13F VISTRA ENERGY COM 92840M102 4,801,017 2,287,198 90.98 124,971 117.19 0.0693
2019-02-06 2018-12-31 13F VISTRA ENERGY COM 92840M102 2,513,819 315,586 14.36 57,541 5.21 0.0367
2018-11-09 2018-09-30 13F VISTRA ENERGY COM 92840M102 2,198,233 748,067 51.58 54,692 59.40 0.0292
2018-08-10 2018-06-30 13F VISTRA ENERGY COM 92840M102 1,450,166 1,112,805 329.86 34,311 388.27 0.0196
2018-05-14 2018-03-31 13F VISTRA ENERGY COM 92840M102 337,361 66,000 24.32 7,027 41.36 0.0041
2018-03-12 2017-12-31 13F/A-1 VISTRA ENERGY COM 92840M102 271,361 271,361 4,971 0.0031
2018-02-09 2017-12-31 13F VISTRA ENERGY COM 92840M102 271,361 4,971 0.0031
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.