Vistra Corp.
MX ˙ BMV ˙ US92840M1027
SecurityMX:VST / Vistra Corp.
InstitutionAventail Capital Group, LP
Latest Disclosed Ownership32,740 shares
Latest Disclosed Value $ 4,921,804
Aventail Capital Group, LP reports 31.32% increase in ownership of VST / Vistra Corp.

On May 15, 2026 - Aventail Capital Group, LP filed a 13F-HR form disclosing ownership of 32,740 shares of Vistra Corp. (MX:VST) valued at $4,921,804 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 24,931 shares of Vistra Corp.. This represents a change in shares of 31.32% 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 32,740 7,809 31.32 4,922 22.35 0.2360
2026-02-17 2025-12-31 13F VISTRA COM 92840M102 24,931 -73,825 -74.75 4,022 -79.21 0.2317
2025-11-14 2025-09-30 13F VISTRA COM 92840M102 98,756 -66,476 -40.23 19,348 -39.58 0.8972
2025-08-14 2025-06-30 13F VISTRA COM 92840M102 165,232 14,115 9.34 32,024 80.44 1.4099
2025-05-15 2025-03-31 13F VISTRA COM 92840M102 151,117 1,117 0.74 17,747 -14.18 0.8744
2025-02-14 2024-12-31 13F VISTRA COM 92840M102 150,000 -166,972 -52.68 20,680 -44.96 1.0608
2024-11-14 2024-09-30 13F VISTRA COM 92840M102 316,972 -309,930 -49.44 37,574 -30.29 2.2120
2024-08-14 2024-06-30 13F VISTRA COM 92840M102 626,902 100,461 19.08 53,901 47.01 3.7648
2024-05-15 2024-03-31 13F VISTRA COM 92840M102 526,441 351,441 200.82 36,667 443.93 2.7993
2024-02-14 2023-12-31 13F VISTRA COM 92840M102 175,000 -175,000 -50.00 6,741 -41.95 0.5706
2023-11-14 2023-09-30 13F VISTRA COM 92840M102 350,000 350,000 11,613 0.8082
2023-08-14 2023-06-30 13F VISTRA COM 92840M102 0 -360,000 -100.00 0 -100.00
2023-05-15 2023-03-31 13F VISTRA COM 92840M102 360,000 360,000 8,640 0.7320
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.