Mastercard Incorporated
US ˙ NYSE ˙ US57636Q1040

SecurityMA / Mastercard Incorporated
InstitutionAmerican Trust
Latest Disclosed Ownership8,563 shares
Latest Disclosed Value $ 4,278,589
American Trust reports 17.17% decrease in ownership of MA / Mastercard Incorporated

On May 1, 2026 - American Trust filed a 13F-HR form disclosing ownership of 8,563 shares of Mastercard Incorporated (US:MA) valued at $4,278,589 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 14, 2026 disclosing 10,338 shares of Mastercard Incorporated. This represents a change in shares of -17.17% during the quarter. The current value of the position is $4,037,883 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)
2026-05-01 2026-03-31 13F MASTERCARD Equities 57636Q104 8,563 -1,775 -17.17 4,279 -27.50 0.3780
2026-02-14 2025-12-31 13F MASTERCARD Equities 57636Q104 10,338 -39 -0.38 5,902 -0.02 0.4962
2025-11-17 2025-09-30 13F MASTERCARD Equities 57636Q104 10,377 207 2.04 5,903 3.29 0.4986
2025-09-03 2025-06-30 13F MASTERCARD Equities 57636Q104 10,170 306 3.10 5,715 5.70 0.5383
2025-05-16 2025-03-31 13F MASTERCARD Equities 57636Q104 9,864 -2,421 -19.71 5,407 -16.42 1.3329
2025-02-18 2024-12-31 13F MASTERCARD Equities 57636Q104 12,285 1,128 10.11 6,469 17.41 0.4924
2024-11-29 2024-09-30 13F MASTERCARD Equities 57636Q104 11,157 1,352 13.79 5,509 27.38 0.4546
2024-09-12 2024-06-30 13F MASTERCARD Equities 57636Q104 9,805 -178 -1.78 4,326 -10.03 0.3543
2024-06-11 2024-03-31 13F MASTERCARD Equities 57636Q104 9,983 1,083 12.17 4,808 26.67 0.4016
2024-02-21 2023-12-31 13F MASTERCARD Equities 57636Q104 8,900 -264 -2.88 3,796 4.60 0.2803
2023-11-15 2023-09-30 13F MASTERCARD Equities 57636Q104 9,164 -692 -7.02 3,628 -6.40 0.2809
2023-08-14 2023-06-30 13F MASTERCARD Equities 57636Q104 9,856 -122 -1.22 3,876 6.89 0.2688
2023-05-22 2023-03-31 13F MASTERCARD Equities 57636Q104 9,978 -1,592 -13.76 3,626 -9.87 0.2515
2023-02-16 2022-12-31 13F MASTERCARD Equities 57636Q104 11,570 101 0.88 4,023 23.37 0.3736
2022-12-02 2022-09-30 13F MASTERCARD Equities 57636Q104 11,469 -2,719 -19.16 3,261 -27.14 0.2749
2022-10-03 2022-06-30 13F MASTERCARD Equities 57636Q104 14,188 -3,372 -19.20 4,476 -28.68 0.3585
2022-06-08 2022-03-31 13F MASTERCARD Equities 57636Q104 17,560 -355 -1.98 6,276 -2.50 0.4212
2022-03-17 2021-12-31 13F MASTERCARD Equities 57636Q104 17,915 17,915 6,437 0.4913
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.