Valero Energy Corporation
MX ˙ BMV ˙ US91913Y1001
SecurityMX:VLO / Valero Energy Corporation
InstitutionMathes Company, Inc.
Latest Disclosed Ownership18,085 shares
Latest Disclosed Value $ 4,468
Mathes Company, Inc. reports 2.78% increase in ownership of VLO / Valero Energy Corporation

On May 8, 2026 - Mathes Company, Inc. filed a 13F-HR form disclosing ownership of 18,085 shares of Valero Energy Corporation (MX:VLO) valued at $4,468 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 17,595 shares of Valero Energy Corporation. This represents a change in shares of 2.78% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-08 2026-03-31 13F Valero Energy COM 91913Y100 18,085 490 2.78 4 100.00 1.6323
2026-02-09 2025-12-31 13F Valero Energy COM 91913Y100 17,595 0 0.00 3 0.00 1.0215
2025-11-12 2025-09-30 13F VALERO ENERGY COM 91913Y100 17,595 -100 -0.57 3 0.00 1.0756
2025-08-05 2025-06-30 13F Valero Energy COM 91913Y100 17,695 -1,245 -6.57 2 0.00 0.8825
2025-05-01 2025-03-31 13F VALERO ENERGY CORP COM 91913Y100 18,940 875 4.84 3 0.00 1.0172
2025-01-31 2024-12-31 13F Valero Energy COM 91913Y100 18,065 -1,675 -8.49 2 0.00 0.8083
2024-10-29 2024-09-30 13F Valero Energy COM 91913Y100 19,740 -3,505 -15.08 3 -33.33 0.9401
2024-08-12 2024-06-30 13F Valero Energy COM 91913Y100 23,245 275 1.20 4 0.00 1.3228
2024-05-02 2024-03-31 13F Valero Energy COM 91913Y100 22,970 -425 -1.82 4 0.00 1.4692
2024-01-30 2023-12-31 13F Valero Energy COM 91913Y100 23,395 -125 -0.53 3 0.00 1.2530
2023-10-26 2023-09-30 13F Valero Energy COM 91913Y100 23,520 -75 -0.32 3 50.00 1.5467
2023-07-25 2023-06-30 13F Valero Energy COM 91913Y100 23,595 -250 -1.05 3 -33.33 1.2111
2023-01-25 2022-12-31 13F VALERO ENERGY COM 91913Y100 23,845 -65 -0.27 3 -99.88 1.5266
2022-10-18 2022-09-30 13F Valero Energy COM 91913Y100 23,910 0 0.00 2,555 0.55 1.4245
2022-08-01 2022-06-30 13F Valero Energy COM 91913Y100 23,910 23,910 2,541 1.2352
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.