Vistra Corp.
US ˙ NYSE ˙ US92840M1027

SecurityVST / Vistra Corp.
InstitutionSei Investments Co
Latest Disclosed Ownership215,820 shares
Latest Disclosed Value $ 34,818,911
Sei Investments Co reports 20.73% decrease in ownership of VST / Vistra Corp.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 215,820 shares of Vistra Corp. (US:VST) valued at $34,818,241 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 272,257 shares of Vistra Corp.. This represents a change in shares of -20.73% during the quarter. The current value of the position is $33,193,116 USD.

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)
2026-02-13 2025-12-31 13F VISTRA COM 92840M102 215,820 -56,437 -20.73 34,819 -34.73 0.0344
2025-11-13 2025-09-30 13F VISTRA COM 92840M102 272,257 -44,567 -14.07 53,342 -13.13 0.0574
2025-08-14 2025-06-30 13F VISTRA COM 92840M102 316,824 108,160 51.83 61,404 150.60 0.0712
2025-05-14 2025-03-31 13F/A-1 VISTRA COM 92840M102 208,664 -168,679 -44.70 24,503 -52.90 0.0315
2025-05-13 2025-03-31 13F VISTRA COM 92840M102 324,303 -53,040 42,014 0.0457
2025-02-11 2024-12-31 13F VISTRA COM 92840M102 377,343 -46,625 -11.00 52,026 3.52 0.0668
2024-11-12 2024-09-30 13F VISTRA COM 92840M102 423,968 120,938 39.91 50,257 92.89 0.0653
2024-08-13 2024-06-30 13F VISTRA COM 92840M102 303,030 -249,118 -45.12 26,055 -32.25 0.0369
2024-05-07 2024-03-31 13F VISTRA COM 92840M102 552,148 22,916 4.33 38,456 88.65 0.0563
2024-02-14 2023-12-31 13F VISTRA COM 92840M102 529,232 49,752 10.38 20,386 28.14 0.0327
2023-11-14 2023-09-30 13F VISTRA COM 92840M102 479,480 110,555 29.97 15,909 64.25 0.0286
2023-08-11 2023-06-30 13F VISTRA COM 92840M102 368,925 -97,199 -20.85 9,685 -13.42 0.0169
2023-05-12 2023-03-31 13F VISTRA COM 92840M102 466,124 24,015 5.43 11,187 9.06 0.0208
2023-02-10 2022-12-31 13F VISTRA COM 92840M102 442,109 27,495 6.63 10,257 17.79 0.0228
2022-11-14 2022-09-30 13F VISTRA COM 92840M102 414,614 -17,091 -3.96 8,708 -12.37 0.0194
2022-08-15 2022-06-30 13F VISTRA COM 92840M102 431,705 20,571 5.00 9,937 3.33 0.0215
2022-05-13 2022-03-31 13F VISTRA COM 92840M102 411,134 -66,179 -13.86 9,617 -12.14 0.0193
2022-02-14 2021-12-31 13F VISTRA COM 92840M102 477,313 27,086 6.02 10,946 41.51 0.0205
2021-11-12 2021-09-30 13F VISTRA COM 92840M102 450,227 43,007 10.56 7,735 1.52 0.0162
2021-08-06 2021-06-30 13F VISTRA COM 92840M102 407,220 -16,378 -3.87 7,619 -3.19 0.0169
2021-05-12 2021-03-31 13F VISTRA COM 92840M102 423,598 216,757 104.79 7,870 91.07 0.0198
2021-02-08 2020-12-31 13F VISTRA COM 92840M102 206,841 -4,109 -1.95 4,119 2.26 0.0106
2020-12-04 2020-09-30 13F/A-1 VISTRA COM 92840M102 210,950 19,511 10.19 4,028 10.96 0.0117
2020-11-06 2020-09-30 13F VISTRA COM 92840M102 225,066 33,627 4,294 10,338.9973
2020-08-17 2020-06-30 13F/A-1 VISTRA ENERGY COM 92840M102 191,439 76,237 66.18 3,630 95.16 0.0113
2020-08-11 2020-06-30 13F VISTRA ENERGY COM 92840M102 166,844 51,642 3,186 8,642.1946
2020-05-14 2020-03-31 13F VISTRA ENERGY COM 92840M102 115,202 30,998 36.81 1,860 -5.39 0.0068
2020-02-06 2019-12-31 13F VISTRA ENERGY COM 92840M102 84,204 32,690 63.46 1,966 37.00 0.0059
2019-11-12 2019-09-30 13F VISTRA ENERGY COM 92840M102 51,514 51,514 1,435 0.0037
2019-08-14 2019-06-30 13F VISTRA ENERGY COM 92840M102 0 -5,693 -100.00 0 -100.00
2019-05-15 2019-03-31 13F VISTRA ENERGY COM 92840M102 5,693 -653 -10.29 153 0.66 0.0005
2019-02-13 2018-12-31 13F VISTRA ENERGY COM 92840M102 6,346 390 6.55 152 1.33 0.0005
2018-11-08 2018-09-30 13F VISTRA ENERGY COM 92840M102 5,956 -118,060 -95.20 150 -94.89 0.0005
2018-08-03 2018-06-30 13F VISTRA ENERGY COM 92840M102 124,016 -58,489 -32.05 2,934 -22.81 0.0100
2018-05-11 2018-03-31 13F VISTRA ENERGY COM 92840M102 182,505 -39,445 -17.77 3,801 -6.54 0.0146
2018-02-08 2017-12-31 13F VISTRA ENERGY COM 92840M102 221,950 119,492 116.63 4,067 112.38 0.0141
2017-11-06 2017-09-30 13F VISTRA ENERGY COM 92840M102 102,458 -251,797 -71.08 1,915 -67.80 0.0068
2017-07-31 2017-06-30 13F VISTRA ENERGY COM 92840M102 354,255 354,255 5,948 0.0237
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.