Mastercard Incorporated
US ˙ NYSE ˙ US57636Q1040

SecurityMA / Mastercard Incorporated
InstitutionOld Port Advisors
Latest Disclosed Ownership1,713 shares
Latest Disclosed Value $ 855,840
Old Port Advisors reports 3.76% increase in ownership of MA / Mastercard Incorporated

On April 6, 2026 - Old Port Advisors filed a 13F-HR form disclosing ownership of 1,713 shares of Mastercard Incorporated (US:MA) valued at $855,918 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 1,651 shares of Mastercard Incorporated. This represents a change in shares of 3.76% during the quarter. The current value of the position is $841,220 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)
2026-04-06 2026-03-31 13F Mastercard Incorporated Cl Stock 57636Q104 1,713 62 3.76 856 -9.24 0.1970
2026-01-08 2025-12-31 13F Mastercard Incorporated Cl Stock 57636Q104 1,651 3 0.18 942 0.53 0.2313
2025-10-06 2025-09-30 13F Mastercard Incorporated Cl Stock 57636Q104 1,648 7 0.43 937 1.63 0.2354
2025-07-16 2025-06-30 13F Mastercard Incorporated Cl Stock 57636Q104 1,641 10 0.61 922 3.25 0.2515
2025-05-06 2025-03-31 13F Mastercard Incorporated Cl Stock 57636Q104 1,631 -50 -2.97 894 0.90 0.2645
2025-01-02 2024-12-31 13F MASTERCARD CL A 57636Q104 1,681 21 1.27 885 8.06 0.2544
2024-10-24 2024-09-30 13F MASTERCARD CL A 57636Q104 1,660 -13 -0.78 820 11.13 0.2277
2024-07-18 2024-06-30 13F MASTERCARD CL A 57636Q104 1,673 57 3.53 738 -5.27 0.2204
2024-06-26 2024-03-31 13F MASTERCARD CL A 57636Q104 1,616 -7 -0.43 778 12.43 0.2382
2024-06-26 2023-12-31 13F MASTERCARD CL A 57636Q104 1,623 19 1.18 692 9.15 0.2299
2023-11-14 2023-09-30 13F MASTERCARD CL A 57636Q104 1,604 -84 -4.98 635 3.26 0.2304
2023-04-12 2023-03-31 13F MASTERCARD CL A 57636Q104 1,688 -45 -2.60 615 1.99 0.2211
2023-01-11 2022-12-31 13F MASTERCARD CL A 57636Q104 1,733 -8 -0.46 602 13.58 0.2270
2022-10-13 2022-09-30 13F MASTERCARD CL A 57636Q104 1,741 -95 -5.17 530 -9.56 0.2108
2022-07-08 2022-06-30 13F MASTERCARD CL A 57636Q104 1,836 24 1.32 586 -11.08 0.2267
2022-04-12 2022-03-31 13F MASTERCARD CL A 57636Q104 1,812 34 1.91 659 0.15 0.2243
2022-01-12 2021-12-31 13F MASTERCARD CL A 57636Q104 1,778 -15 -0.84 658 5.28 0.2229
2021-10-12 2021-09-30 13F MASTERCARD CL A 57636Q104 1,793 -42 -2.29 625 -12.83 0.2265
2021-07-20 2021-06-30 13F MASTERCARD CL A 57636Q104 1,835 -109 -5.61 717 3.61 0.2580
2021-04-08 2021-03-31 13F MASTERCARD CL A 57636Q104 1,944 61 3.24 692 4.53 0.2715
2021-01-08 2020-12-31 13F MASTERCARD CL A 57636Q104 1,883 38 2.06 662 6.09 0.2877
2020-10-08 2020-09-30 13F MASTERCARD CL A 57636Q104 1,845 -43 -2.28 624 11.83 0.3082
2020-07-08 2020-06-30 13F MASTERCARD CL A 57636Q104 1,888 -3 -0.16 558 22.10 0.2921
2020-04-17 2020-03-31 13F MASTERCARD CL A 57636Q104 1,891 -22 -1.15 457 -20.66 0.2789
2020-01-09 2019-12-31 13F MASTERCARD CL A 57636Q104 1,913 35 1.86 576 11.84 0.2781
2019-10-10 2019-09-30 13F MASTERCARD CL A 57636Q104 1,878 -129 -6.43 515 -6.02 0.2696
2019-07-12 2019-06-30 13F MASTERCARD CL A 57636Q104 2,007 -104 -4.93 548 10.26 0.2811
2019-04-08 2019-03-31 13F MASTERCARD CL A 57636Q104 2,111 -53 -2.45 497 15.05 0.2606
2019-01-30 2018-12-31 13F MASTERCARD CL A 57636Q104 2,164 -299 -12.14 432 -10.74 0.2420
2018-09-24 2018-06-30 13F MASTERCARD CL A 57636Q104 2,463 2,463 484 0.2610
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.