Mastercard Incorporated
US ˙ NYSE ˙ US57636Q1040

SecurityMA / Mastercard Incorporated
InstitutionTanaka Capital Management Inc
Latest Disclosed Ownership1,893 shares
Latest Disclosed Value $ 946
Tanaka Capital Management Inc reports 57.62% increase in ownership of MA / Mastercard Incorporated

On May 18, 2026 - Tanaka Capital Management Inc filed a 13F-HR form disclosing ownership of 1,893 shares of Mastercard Incorporated (US:MA) valued at $945,856 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,201 shares of Mastercard Incorporated. The current value of the position is $929,614 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)
2026-05-18 2026-03-31 13F Mastercard COM 57636Q104 1,893 692 57.62 1 1.5796
2026-02-17 2025-12-31 13F Mastercard COM 57636Q104 1,201 0 0.00 1 1.2513
2025-11-14 2025-09-30 13F Mastercard COM 57636Q104 1,201 -10 -0.83 1 1.2299
2025-05-15 2025-03-31 13F Mastercard COM 57636Q104 1,211 -17 -1.38 1 1.5807
2025-02-14 2024-12-31 13F Mastercard COM 57636Q104 1,228 0 0.00 1 1.4792
2024-11-15 2024-09-30 13F Mastercard COM 57636Q104 1,228 -8 -0.65 1 1.4015
2024-08-15 2024-06-30 13F Mastercard COM 57636Q104 1,236 0 0.00 1 1.2901
2024-05-15 2024-03-31 13F Mastercard COM 57636Q104 1,236 0 0.00 1 1.4647
2024-02-14 2023-12-31 13F Mastercard COM 57636Q104 1,236 -10 -0.80 1 1.2886
2023-11-14 2023-09-30 13F Mastercard COM 57636Q104 1,246 0 0.00 0 1.4082
2023-08-14 2023-06-30 13F Mastercard COM 57636Q104 1,246 -10 -0.80 0 1.3247
2023-05-12 2023-03-31 13F Mastercard COM 57636Q104 1,256 0 0.00 0 1.3242
2023-02-15 2022-12-31 13F Mastercard COM 57636Q104 1,256 0 0.00 0 -100.00 1.3864
2022-11-15 2022-09-30 13F Mastercard COM 57636Q104 1,256 0 0.00 357 -9.85 1.0652
2022-08-15 2022-06-30 13F Mastercard COM 57636Q104 1,256 -165 -11.61 396 -22.05 1.2877
2022-05-16 2022-03-31 13F Mastercard COM 57636Q104 1,421 0 0.00 508 -0.59 1.0258
2022-02-14 2021-12-31 13F Mastercard COM 57636Q104 1,421 -370 -20.66 511 -17.98 0.9711
2021-11-15 2021-09-30 13F Mastercard COM 57636Q104 1,791 -5 -0.28 623 -5.03 0.8885
2021-08-13 2021-06-30 13F Mastercard COM 57636Q104 1,796 -200 -10.02 656 -7.74 0.8861
2021-05-17 2021-03-31 13F Mastercard COM 57636Q104 1,996 290 17.00 711 16.75 0.9020
2021-02-11 2020-12-31 13F Mastercard COM 57636Q104 1,706 0 0.00 609 5.55 1.3522
2020-11-13 2020-09-30 13F Mastercard COM 57636Q104 1,706 -20 -1.16 577 13.14 1.8077
2020-08-17 2020-06-30 13F Mastercard COM 57636Q104 1,726 1,726 510 1.5803
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.