Mastercard Incorporated
CH ˙ SWX ˙ US57636Q1040
SecurityCH:MA / Mastercard Incorporated
InstitutionIthaka Group Llc
Latest Disclosed Ownership62,467 shares
Latest Disclosed Value $ 31,212,261
Ithaka Group Llc reports 1.86% increase in ownership of MA / Mastercard Incorporated

On May 12, 2026 - Ithaka Group Llc filed a 13F-HR form disclosing ownership of 62,467 shares of Mastercard Incorporated (CH:MA) valued at $31,212,261 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 61,325 shares of Mastercard Incorporated. This represents a change in shares of 1.86% 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 COM 57636Q104 62,467 1,142 1.86 31,212 -10.85 6.4767
2026-02-10 2025-12-31 13F Mastercard COM 57636Q104 61,325 773 1.28 35,009 1.65 6.2400
2025-11-12 2025-09-30 13F Mastercard COM 57636Q104 60,552 -155 -0.26 34,443 0.96 5.8803
2025-08-12 2025-06-30 13F Mastercard COM 57636Q104 60,707 -2,408 -3.82 34,114 -1.39 5.8401
2025-05-09 2025-03-31 13F Mastercard COM 57636Q104 63,115 1,014 1.63 34,595 5.79 7.0496
2025-02-10 2024-12-31 13F Mastercard COM 57636Q104 62,101 -3,372 -5.15 32,701 1.14 6.0245
2024-11-12 2024-09-30 13F Mastercard COM 57636Q104 65,473 -1,818 -2.70 32,331 8.91 6.1311
2024-08-09 2024-06-30 13F Mastercard COM 57636Q104 67,291 -3,229 -4.58 29,686 -12.59 5.4797
2024-05-13 2024-03-31 13F Mastercard COM 57636Q104 70,520 -4,539 -6.05 33,960 6.08 6.4026
2024-02-12 2023-12-31 13F Mastercard COM 57636Q104 75,059 -1,357 -1.78 32,013 5.82 6.3277
2023-11-13 2023-09-30 13F Mastercard COM 57636Q104 76,416 -2,879 -3.63 30,254 -2.99 6.9634
2023-08-11 2023-06-30 13F Mastercard COM 57636Q104 79,295 -11,920 -13.07 31,187 -5.92 6.5108
2023-05-12 2023-03-31 13F Mastercard COM 57636Q104 91,215 -110,933 -54.88 33,148 -52.84 6.9823
2023-02-13 2022-12-31 13F Mastercard COM 57636Q104 202,148 87,970 77.05 70,293 116.52 8.0663
2022-11-14 2022-09-30 13F Mastercard COM 57636Q104 114,178 -1,454 -1.26 32,465 -11.01 7.2223
2022-08-10 2022-06-30 13F Mastercard COM 57636Q104 115,632 -5,550 -4.58 36,480 -15.77 7.2997
2022-05-10 2022-03-31 13F Mastercard COM 57636Q104 121,182 1,994 1.67 43,308 1.12 5.9989
2022-02-10 2021-12-31 13F Mastercard COM 57636Q104 119,188 -1,356 -1.12 42,827 2.19 5.2211
2021-11-12 2021-09-30 13F Mastercard COM 57636Q104 120,544 -2,914 -2.36 41,911 -7.02 5.1254
2021-08-12 2021-06-30 13F Mastercard COM 57636Q104 123,458 -1,269 -1.02 45,073 1.50 5.4635
2021-05-06 2021-03-31 13F Mastercard COM 57636Q104 124,727 -23,050 -15.60 44,409 -15.81 6.0172
2021-02-08 2020-12-31 13F Mastercard COM 57636Q104 147,777 -1,340 -0.90 52,748 4.60 5.8790
2020-11-12 2020-09-30 13F Mastercard COM 57636Q104 149,117 -1,641 -1.09 50,427 13.12 6.2237
2020-08-10 2020-06-30 13F Mastercard COM 57636Q104 150,758 3,080 2.09 44,579 24.97 6.1184
2020-05-11 2020-03-31 13F Mastercard COM 57636Q104 147,678 -864 -0.58 35,673 -19.57 6.8103
2020-02-13 2019-12-31 13F Mastercard COM 57636Q104 148,542 -49,212 -24.89 44,353 -17.41 7.4456
2019-11-12 2019-09-30 13F Mastercard COM 57636Q104 197,754 19,455 10.91 53,704 13.86 7.5944
2019-08-12 2019-06-30 13F Mastercard COM 57636Q104 178,299 241 0.14 47,165 12.50 7.1494
2019-05-13 2019-03-31 13F Mastercard COM 57636Q104 178,058 3,597 2.06 41,924 27.38 6.6803
2019-02-14 2018-12-31 13F Mastercard COM 57636Q104 174,461 -3,245 -1.83 32,912 -16.80 6.0310
2018-11-13 2018-09-30 13F Mastercard COM 57636Q104 177,706 -12,262 -6.45 39,559 5.96 5.8827
2018-08-13 2018-06-30 13F Mastercard COM 57636Q104 189,968 -4,795 -2.46 37,333 9.43 5.8061
2018-05-14 2018-03-31 13F Mastercard COM 57636Q104 194,763 -4,799 -2.40 34,115 12.94 5.7316
2018-02-06 2017-12-31 13F Mastercard COM 57636Q104 199,562 -1,909 -0.95 30,206 6.18 5.4167
2017-11-13 2017-09-30 13F Mastercard COM 57636Q104 201,471 -10,606 -5.00 28,448 10.45 5.2297
2017-08-11 2017-06-30 13F Mastercard COM 57636Q104 212,077 2,709 1.29 25,757 9.38 4.6762
2017-05-09 2017-03-31 13F Mastercard COM 57636Q104 209,368 -16,847 -7.45 23,548 0.82 4.5515
2017-02-10 2016-12-31 13F Mastercard COM 57636Q104 226,215 -41,275 -15.43 23,357 -14.20 4.6028
2016-11-14 2016-09-30 13F Mastercard COM 57636Q104 267,490 -44,538 -14.27 27,222 -0.93 4.2777
2016-08-12 2016-06-30 13F Mastercard COM 57636Q104 312,028 -6,891 -2.16 27,477 -8.83 3.9897
2016-05-12 2016-03-31 13F Mastercard COM 57636Q104 318,919 4,684 1.49 30,138 -1.49 4.3535
2016-02-11 2015-12-31 13F Mastercard COM 57636Q104 314,235 20,182 6.86 30,594 15.45 4.0835
2015-11-12 2015-09-30 13F Mastercard COM 57636Q104 294,053 39,331 15.44 26,500 11.29 4.0680
2015-08-11 2015-06-30 13F Mastercard COM 57636Q104 254,722 -20,011 -7.28 23,811 0.32 4.0009
2015-05-11 2015-03-31 13F Mastercard COM 57636Q104 274,733 -25,822 -8.59 23,734 -8.35 3.7574
2015-02-09 2014-12-31 13F Mastercard COM 57636Q104 300,555 -25,591 -7.85 25,896 7.41 4.0606
2014-11-12 2014-09-30 13F Mastercard COM 57636Q104 326,146 -14,959 -4.39 24,109 -3.80 3.6159
2014-08-13 2014-06-30 13F Mastercard COM 57636Q104 341,105 -5,881 -1.69 25,061 -3.31 3.6358
2014-05-13 2014-03-31 13F Mastercard COM 57636Q104 346,986 317,189 1,064.50 25,920 4.12 4.2963
2014-02-13 2013-12-31 13F Mastercard COM 57636Q104 29,797 3,106 11.64 24,894 38.63 4.7014
2013-11-13 2013-09-30 13F Mastercard COM 57636Q104 26,691 1,380 5.45 17,957 23.49 4.1701
2013-08-07 2013-06-30 13F Mastercard COM 57636Q104 25,311 25,311 14,541 4.2681
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.