Mastercard Incorporated
US ˙ NYSE ˙ US57636Q1040

SecurityMA / Mastercard Incorporated
InstitutionSlateStone Wealth, LLC
Latest Disclosed Ownership15,883 shares
Latest Disclosed Value $ 7,936
SlateStone Wealth, LLC reports 3.11% increase in ownership of MA / Mastercard Incorporated

On May 14, 2026 - SlateStone Wealth, LLC filed a 13F-HR form disclosing ownership of 15,883 shares of Mastercard Incorporated (US:MA) valued at $7,936,100 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 15,404 shares of Mastercard Incorporated. This represents a change in shares of 3.11% during the quarter. The current value of the position is $7,489,629 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)
2026-05-14 2026-03-31 13F MasterCard Incorporated Cl A COM 57636Q104 15,883 479 3.11 8 -12.50 0.6542
2026-02-11 2025-12-31 13F MasterCard Incorporated Cl A COM 57636Q104 15,404 172 1.13 9 0.00 0.7359
2025-11-05 2025-09-30 13F MasterCard Incorporated Cl A COM 57636Q104 15,232 -1,487 -8.89 9 -11.11 0.7500
2025-08-12 2025-06-30 13F MasterCard Incorporated Cl A COM 57636Q104 16,719 -36 -0.21 9 0.00 0.8784
2025-05-08 2025-03-31 13F MasterCard Incorporated Cl A COM 57636Q104 16,755 1 0.01 9 12.50 0.9218
2025-02-10 2024-12-31 13F MasterCard Incorporated Cl A COM 57636Q104 16,754 81 0.49 9 0.00 0.8654
2024-11-07 2024-09-30 13F MasterCard Incorporated Cl A COM 57636Q104 16,673 6,510 64.06 8 100.00 0.7413
2024-07-25 2024-06-30 13F MasterCard Incorporated Cl A COM 57636Q104 10,163 -5,206 -33.87 4 -42.86 0.4859
2024-04-26 2024-03-31 13F MasterCard Incorporated Cl A COM 57636Q104 15,369 6,213 67.86 7 133.33 0.7432
2024-02-01 2023-12-31 13F MasterCard Incorporated Cl A COM 57636Q104 9,156 724 8.59 4 0.00 0.5068
2023-10-12 2023-09-30 13F MasterCard Incorporated Cl A COM 57636Q104 8,432 5,155 157.31 3 200.00 0.4855
2023-08-07 2023-06-30 13F MasterCard Incorporated Cl A COM 57636Q104 3,277 7 0.21 1 0.00 0.2415
2023-08-08 2023-03-31 13F MasterCard Incorporated Cl A COM 57636Q104 3,270 -20 -0.61 1 -99.91 0.2460
2023-02-01 2022-12-31 13F MasterCard Incorporated Cl A COM 57636Q104 3,290 40 1.23 1,144 23.81 0.2760
2022-11-03 2022-09-30 13F MasterCard Incorporated Cl A COM 57636Q104 3,250 110 3.50 924 -6.76 0.2459
2022-08-04 2022-06-30 13F MasterCard Incorporated Cl A COM 57636Q104 3,140 160 5.37 991 -6.95 0.2532
2022-05-04 2022-03-31 13F MasterCard Incorporated Cl A COM 57636Q104 2,980 30 1.02 1,065 0.47 0.2375
2022-02-02 2021-12-31 13F MasterCard Incorporated Cl A COM 57636Q104 2,950 -59 -1.96 1,060 1.34 0.2265
2021-10-28 2021-09-30 13F MasterCard Incorporated Cl A COM 57636Q104 3,009 4 0.13 1,046 -4.65 0.2395
2021-08-02 2021-06-30 13F MasterCard Incorporated Cl A COM 57636Q104 3,005 -2,361 -44.00 1,097 -42.60 0.2508
2021-04-19 2021-03-31 13F MasterCard Incorporated Cl A COM 57636Q104 5,366 -75 -1.38 1,911 -1.60 0.4721
2021-01-25 2020-12-31 13F MasterCard Incorporated Cl A COM 57636Q104 5,441 -4,885 -47.31 1,942 -44.39 0.4843
2020-10-27 2020-09-30 13F MasterCard Incorporated Cl A COM 57636Q104 10,326 305 3.04 3,492 17.85 0.7537
2020-07-29 2020-06-30 13F MasterCard Incorporated Cl A COM 57636Q104 10,021 2,194 28.03 2,963 56.69 0.6623
2020-04-28 2020-03-31 13F MasterCard Incorporated Cl A COM 57636Q104 7,827 2,604 49.86 1,891 21.22 0.5379
2020-02-06 2019-12-31 13F MasterCard Incorporated Cl A COM 57636Q104 5,223 1,216 30.35 1,560 43.38 0.3567
2019-11-05 2019-09-30 13F MasterCard Incorporated Cl A COM 57636Q104 4,007 501 14.29 1,088 17.37 0.3176
2019-08-05 2019-06-30 13F MasterCard Incorporated Cl A COM 57636Q104 3,506 80 2.34 927 14.87 0.2611
2019-05-06 2019-03-31 13F MasterCard Incorporated Cl A COM 57636Q104 3,426 -145 -4.06 807 19.73 0.2478
2019-02-13 2018-12-31 13F MasterCard Incorporated Cl A COM 57636Q104 3,571 3,571 674 0.3099
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.