Mastercard Incorporated
MX ˙ BMV ˙ US57636Q1040
SecurityMX:MA / Mastercard Incorporated
InstitutionAltarock Partners Llc
Latest Disclosed Ownership522,836 shares
Latest Disclosed Value $ 261,240,236
Altarock Partners Llc reports 3.51% decrease in ownership of MA / Mastercard Incorporated

On May 15, 2026 - Altarock Partners Llc filed a 13F-HR form disclosing ownership of 522,836 shares of Mastercard Incorporated (MX:MA) valued at $261,240,236 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 541,836 shares of Mastercard Incorporated. This represents a change in shares of -3.51% 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)
2026-05-15 2026-03-31 13F MASTERCARD INC- COMM 57636Q104 522,836 -19,000 -3.51 261,240 -15.54 6.3310
2026-02-13 2025-12-31 13F MASTERCARD INC- COMM 57636Q104 541,836 -42,250 -7.23 309,323 -6.90 6.0651
2025-11-14 2025-09-30 13F MASTERCARD INC- COMM 57636Q104 584,086 -2,168 -0.37 332,234 0.85 6.0747
2025-08-14 2025-06-30 13F MASTERCARD INC- COMM 57636Q104 586,254 0 0.00 329,440 2.52 6.0146
2025-05-14 2025-03-31 13F MASTERCARD INC- COMM 57636Q104 586,254 0 0.00 321,338 4.09 6.4612
2025-02-14 2024-12-31 13F MASTERCARD INC- COMM 57636Q104 586,254 -33,779 -5.45 308,704 0.83 6.2445
2024-11-13 2024-09-30 13F MASTERCARD INC- COMM 57636Q104 620,033 353,000 132.19 306,172 159.90 6.0302
2024-08-14 2024-06-30 13F MASTERCARD INC- COMM 57636Q104 267,033 0 0.00 117,804 -8.39 2.4247
2024-05-21 2024-03-31 13F/A-1 MASTERCARD INC- COMM 57636Q104 267,033 -1,961 -0.73 128,595 12.09 2.7634
2024-05-15 2024-03-31 13F MASTERCARD INC- COMM 57636Q104 267,033 -1,961 128,595 2.7634
2024-02-15 2023-12-31 13F MASTERCARD INCORPORATED CL A COMM 57636Q104 268,994 -11,457 -4.09 114,729 3.33 2.5590
2023-11-14 2023-09-30 13F MASTERCARD INCORPORATED CL A COMM 57636Q104 280,451 -14,059 -4.77 111,033 -4.14 2.7809
2023-08-14 2023-06-30 13F MASTERCARD INCORPORATED CL A COMM 57636Q104 294,510 0 0.00 115,831 8.23 2.7817
2023-05-16 2023-03-31 13F MASTERCARD INCORPORATED CL A COMM 57636Q104 294,510 -6,500 -2.16 107,028 2.25 2.9317
2023-02-13 2022-12-31 13F MASTERCARD INCORPORATED CL A COMM 57636Q104 301,010 -27,153 -8.27 104,670 12.17 3.2896
2022-11-14 2022-09-30 13F MASTERCARD INC CL A COMM 57636Q104 328,163 79,714 32.08 93,310 19.05 3.0547
2022-08-12 2022-06-30 13F MASTERCARD INC CL A COMM 57636Q104 248,449 -2,800 -1.11 78,381 -12.71 2.4188
2022-05-13 2022-03-31 13F MASTERCARD INC CL A COMM 57636Q104 251,249 0 0.00 89,791 -0.54 2.2894
2022-02-14 2021-12-31 13F MASTERCARD INC CL A COMM 57636Q104 251,249 75,000 42.55 90,279 47.33 2.3795
2021-11-15 2021-09-30 13F MASTERCARD INC CL A COMM 57636Q104 176,249 0 0.00 61,278 -4.77 1.6530
2021-08-13 2021-06-30 13F MASTERCARD INC CL A COMM 57636Q104 176,249 0 0.00 64,347 2.54 1.7811
2021-05-14 2021-03-31 13F MASTERCARD INC CL A COMM 57636Q104 176,249 0 0.00 62,753 -0.25 2.3852
2021-02-16 2020-12-31 13F MASTERCARD INC CL A COMM 57636Q104 176,249 -210,691 -54.45 62,910 -51.92 2.6366
2020-11-13 2020-09-30 13F MASTERCARD INC CL A COMM 57636Q104 386,940 -25,000 -6.07 130,851 7.42 6.1720
2020-08-13 2020-06-30 13F MASTERCARD INC CL A COMM 57636Q104 411,940 50,000 13.81 121,811 39.32 6.2450
2020-05-13 2020-03-31 13F MASTERCARD INC CL A COMM 57636Q104 361,940 -35,000 -8.82 87,430 -26.23 5.5521
2020-02-13 2019-12-31 13F MASTERCARD INC CL A COMM 57636Q104 396,940 0 0.00 118,522 9.95 7.3318
2019-11-15 2019-09-30 13F MASTERCARD INC CL A COMM 57636Q104 396,940 0 0.00 107,797 2.66 9.3420
2019-08-14 2019-06-30 13F MASTERCARD INC CL A COMM 57636Q104 396,940 0 0.00 105,003 12.35 9.0597
2019-05-14 2019-03-31 13F MASTERCARD INC CL A COMM 57636Q104 396,940 0 0.00 93,460 24.81 8.8830
2019-02-14 2018-12-31 13F MASTERCARD INC CL A COMM 57636Q104 396,940 -1,350 -0.34 74,883 -15.54 8.9119
2018-11-13 2018-09-30 13F MASTERCARD INC CL A COMM 57636Q104 398,290 0 0.00 88,663 13.28 8.1440
2018-08-13 2018-06-30 13F MASTERCARD INC CL A COMM 57636Q104 398,290 0 0.00 78,272 12.20 8.0926
2018-05-14 2018-03-31 13F MASTERCARD INC CL A COMM 57636Q104 398,290 0 0.00 69,764 15.72 7.9835
2018-02-13 2017-12-31 13F MASTERCARD INC CL A COMM 57636Q104 398,290 0 0.00 60,285 7.19 7.9191
2017-11-14 2017-09-30 13F MASTERCARD INC CL A COMM 57636Q104 398,290 0 0.00 56,239 16.26 8.2238
2017-08-11 2017-06-30 13F MASTERCARD INC CL A COMM 57636Q104 398,290 0 0.00 48,372 7.98 6.8124
2017-05-15 2017-03-31 13F MASTERCARD INC CL A COMM 57636Q104 398,290 -5,400 -1.34 44,796 7.47 6.6440
2017-02-14 2016-12-31 13F MASTERCARD INC CL A COMM 57636Q104 403,690 0 0.00 41,681 1.45 6.1077
2016-11-14 2016-09-30 13F MASTERCARD INC CL A COMM 57636Q104 403,690 0 0.00 41,084 15.57 6.5428
2016-08-15 2016-06-30 13F MASTERCARD INC CL A COMM 57636Q104 403,690 0 0.00 35,549 -6.82 6.4579
2016-05-13 2016-03-31 13F MASTERCARD INC CL A COMM 57636Q104 403,690 0 0.00 38,149 -2.94 7.0320
2016-02-08 2015-12-31 13F MASTERCARD INC CL A COMM 57636Q104 403,690 0 0.00 39,303 8.03 7.9900
2015-11-12 2015-09-30 13F MASTERCARD INC CL A COMM 57636Q104 403,690 8,300 2.10 36,381 -1.57 8.6717
2015-08-14 2015-06-30 13F MASTERCARD INC CL A COMM 57636Q104 395,390 83,700 26.85 36,961 37.26 11.7892
2015-05-14 2015-03-31 13F MASTERCARD INC - COMM 57636Q104 311,690 52,000 20.02 26,927 20.34 13.4567
2015-02-17 2014-12-31 13F MASTERCARD INC - COMM 57636Q104 259,690 259,690 22,375 18.5029
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.