Mastercard Incorporated
CH ˙ SWX ˙ US57636Q1040
SecurityCH:MA / Mastercard Incorporated
InstitutionThames Capital Management Llc
Latest Disclosed Ownership34,663 shares
Latest Disclosed Value $ 17,319,715
Thames Capital Management Llc reports 9.15% decrease in ownership of MA / Mastercard Incorporated

On May 12, 2026 - Thames Capital Management Llc filed a 13F-HR form disclosing ownership of 34,663 shares of Mastercard Incorporated (CH:MA) valued at $17,319,715 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 38,155 shares of Mastercard Incorporated. This represents a change in shares of -9.15% 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.

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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)
2026-05-12 2026-03-31 13F MASTERCARD CL A 57636Q104 34,663 -3,492 -9.15 17,320 -20.49 3.1045
2026-02-10 2025-12-31 13F MASTERCARD CL A 57636Q104 38,155 3,732 10.84 21,782 11.24 3.1671
2025-10-28 2025-09-30 13F MASTERCARD CL A 57636Q104 34,423 0 0.00 19,580 1.23 2.7938
2025-08-11 2025-06-30 13F MASTERCARD CL A 57636Q104 34,423 0 0.00 19,344 2.52 4.3823
2025-05-13 2025-03-31 13F MASTERCARD CL A 57636Q104 34,423 0 0.00 18,868 4.09 7.2447
2025-02-13 2024-12-31 13F MASTERCARD CL A 57636Q104 34,423 0 0.00 18,126 6.64 4.9132
2024-11-14 2024-09-30 13F MASTERCARD CL A 57636Q104 34,423 0 0.00 16,998 11.93 5.2954
2024-08-13 2024-06-30 13F MASTERCARD CL A 57636Q104 34,423 0 0.00 15,186 -8.39 5.9465
2024-05-14 2024-03-31 13F MASTERCARD CL A 57636Q104 34,423 -2,389 -6.49 16,577 5.59 6.8978
2024-02-14 2023-12-31 13F MASTERCARD CL A 57636Q104 36,812 0 0.00 15,701 7.73 8.0883
2023-11-14 2023-09-30 13F MASTERCARD CL A 57636Q104 36,812 0 0.00 14,574 0.66 8.3287
2023-08-11 2023-06-30 13F MASTERCARD CL A 57636Q104 36,812 0 0.00 14,478 8.23 7.7115
2023-05-11 2023-03-31 13F MASTERCARD CL A 57636Q104 36,812 -12,189 -24.88 13,378 -21.49 9.4131
2023-02-14 2022-12-31 13F MASTERCARD CL A 57636Q104 49,001 0 0.00 17,039 22.29 8.0896
2022-11-14 2022-09-30 13F MASTERCARD CL A 57636Q104 49,001 0 0.00 13,933 -9.87 6.9158
2022-08-11 2022-06-30 13F MASTERCARD CL A 57636Q104 49,001 0 0.00 15,459 -11.72 6.2076
2022-05-11 2022-03-31 13F MASTERCARD CL A 57636Q104 49,001 0 0.00 17,512 -0.54 3.6939
2022-02-14 2021-12-31 13F MASTERCARD CL A 57636Q104 49,001 -199 -0.40 17,607 2.93 3.3714
2021-11-12 2021-09-30 13F MASTERCARD CL A 57636Q104 49,200 0 0.00 17,106 -4.77 3.7305
2021-08-13 2021-06-30 13F MASTERCARD CL A 57636Q104 49,200 0 0.00 17,962 2.53 4.2121
2021-05-13 2021-03-31 13F MASTERCARD CL A 57636Q104 49,200 0 0.00 17,518 -0.24 4.0398
2021-02-12 2020-12-31 13F MASTERCARD CL A 57636Q104 49,200 0 0.00 17,561 5.55 4.9389
2020-11-13 2020-09-30 13F MASTERCARD CL A 57636Q104 49,200 0 0.00 16,638 14.37 5.8686
2020-08-12 2020-06-30 13F MASTERCARD CL A 57636Q104 49,200 0 0.00 14,548 22.41 5.7073
2020-05-13 2020-03-31 13F MASTERCARD CL A 57636Q104 49,200 -8,850 -15.25 11,885 -31.43 9.3236
2020-02-13 2019-12-31 13F MASTERCARD CL A 57636Q104 58,050 100 0.17 17,333 10.14 5.7461
2019-11-13 2019-09-30 13F MASTERCARD CL A 57636Q104 57,950 -7,460 -11.40 15,737 -9.05 4.6853
2019-08-14 2019-06-30 13F MASTERCARD CL A 57636Q104 65,410 0 0.00 17,303 12.35 4.8944
2019-05-15 2019-03-31 13F MASTERCARD CL A 57636Q104 65,410 0 0.00 15,401 24.81 4.3358
2019-02-13 2018-12-31 13F MASTERCARD CL A 57636Q104 65,410 26,690 68.93 12,340 43.17 5.1991
2018-11-14 2018-09-30 13F MASTERCARD CL A 57636Q104 38,720 -6,400 -14.18 8,619 -2.80 2.1892
2018-08-14 2018-06-30 13F MASTERCARD CL A 57636Q104 45,120 -10,230 -18.48 8,867 -8.54 3.0400
2018-05-15 2018-03-31 13F MASTERCARD CL A 57636Q104 55,350 13,180 31.25 9,695 51.89 4.0803
2018-02-14 2017-12-31 13F MASTERCARD CL A 57636Q104 42,170 42,170 6,383 4.0107
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.