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CH ˙ SWX ˙ US57636Q1040
SecurityCH:MA / Mastercard Incorporated
InstitutionAltman Advisors, Inc.
Latest Disclosed Ownership4,150 shares
Latest Disclosed Value $ 2,073,648
Altman Advisors, Inc. reports 1.94% increase in ownership of MA / Mastercard Incorporated

On May 5, 2026 - Altman Advisors, Inc. filed a 13F-HR form disclosing ownership of 4,150 shares of Mastercard Incorporated (CH:MA) valued at $2,073,648 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 4,071 shares of Mastercard Incorporated. This represents a change in shares of 1.94% 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)
2026-05-05 2026-03-31 13F MASTERCARD CL A 57636Q104 4,150 79 1.94 2,074 -10.80 0.8595
2026-02-04 2025-12-31 13F MASTERCARD CL A 57636Q104 4,071 13 0.32 2,324 0.69 0.8757
2025-11-13 2025-09-30 13F/A-1 MASTERCARD CL A 57636Q104 4,058 -2 -0.05 2,308 0.70 0.8831
2025-11-07 2025-09-30 13F MASTERCARD CL A 57636Q104 4,060 0 2,292 0.9381
2025-08-07 2025-06-30 13F MASTERCARD CL A 57636Q104 4,060 15 0.37 2,292 3.43 0.9364
2025-05-02 2025-03-31 13F MASTERCARD CL A 57636Q104 4,045 58 1.45 2,217 5.57 1.0216
2025-02-13 2024-12-31 13F MASTERCARD CL A 57636Q104 3,987 40 1.01 2,099 7.70 0.8951
2024-11-08 2024-09-30 13F MASTERCARD CL A 57636Q104 3,947 3,947 1,949 0.8672
2024-08-08 2024-06-30 13F MASTERCARD CL A 57636Q104 0 -3,879 -100.00 0 -100.00
2024-05-09 2024-03-31 13F MASTERCARD CL A 57636Q104 3,879 50 1.31 1,856 13.59 0.9033
2024-02-08 2023-12-31 13F MASTERCARD CL A 57636Q104 3,829 42 1.11 1,633 8.94 0.8564
2023-11-14 2023-09-30 13F MASTERCARD CL A 57636Q104 3,787 -1 -0.03 1,499 17.11 0.9358
2023-05-09 2023-03-31 13F MASTERCARD CL A 57636Q104 3,788 63 1.69 1,281 -9.03 1.1721
2023-02-08 2022-12-31 13F MASTERCARD CL A 57636Q104 3,725 -213 -5.41 1,408 25.63 0.8685
2022-11-08 2022-09-30 13F MASTERCARD CL A 57636Q104 3,938 138 3.63 1,120 -15.54 0.7070
2022-08-08 2022-06-30 13F MASTERCARD CL A 57636Q104 3,800 -4,378 -53.53 1,326 -54.64 0.7555
2022-05-09 2022-03-31 13F MASTERCARD CL A 57636Q104 8,178 35 0.43 2,923 1.11 1.5091
2022-02-08 2021-12-31 13F MASTERCARD CL A 57636Q104 8,143 179 2.25 2,891 8.20 1.7644
2021-11-09 2021-09-30 13F MASTERCARD CL A 57636Q104 7,964 39 0.49 2,672 -9.05 1.4789
2021-08-13 2021-06-30 13F MASTERCARD CL A 57636Q104 7,925 461 6.18 2,938 10.66 1.6592
2021-05-14 2021-03-31 13F MASTERCARD CL A 57636Q104 7,464 -419 -5.32 2,655 -5.65 1.7135
2021-02-10 2020-12-31 13F MASTERCARD CL A 57636Q104 7,883 -100 -1.25 2,814 4.22 1.7665
2020-11-13 2020-09-30 13F MASTERCARD CL A 57636Q104 7,983 61 0.77 2,700 15.24 1.9130
2020-08-12 2020-06-30 13F MASTERCARD CL A 57636Q104 7,922 -264 -3.23 2,343 18.51 1.9917
2020-04-20 2020-03-31 13F MASTERCARD CL A 57636Q104 8,186 -510 -5.86 1,977 -23.87 1.8359
2020-01-17 2019-12-31 13F MASTERCARD CL A 57636Q104 8,696 -5 -0.06 2,597 9.90 2.0751
2019-10-09 2019-09-30 13F MASTERCARD CL A 57636Q104 8,701 -12 -0.14 2,363 2.52 1.9999
2019-07-12 2019-06-30 13F MASTERCARD CL A 57636Q104 8,713 101 1.17 2,305 13.66 1.9366
2019-04-12 2019-03-31 13F MASTERCARD CL A 57636Q104 8,612 1,225 16.58 2,028 45.48 1.9029
2019-02-07 2018-12-31 13F MASTERCARD CL A 57636Q104 7,387 7,387 1,394 1.5282
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.