Mastercard Incorporated
CH ˙ SWX ˙ US57636Q1040
SecurityCH:MA / Mastercard Incorporated
InstitutionAdvisor OS, LLC
Latest Disclosed Ownership4,898 shares
Latest Disclosed Value $ 2,447,825
Advisor OS, LLC reports 17.51% increase in ownership of MA / Mastercard Incorporated

On May 7, 2026 - Advisor OS, LLC filed a 13F-HR form disclosing ownership of 4,898 shares of Mastercard Incorporated (CH:MA) valued at $2,447,825 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 4,168 shares of Mastercard Incorporated. This represents a change in shares of 17.51% 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)
2026-05-07 2026-03-31 13F MASTERCARD CL A 57636Q104 4,898 730 17.51 2,448 2.86 0.0688
2026-02-04 2025-12-31 13F MASTERCARD CL A 57636Q104 4,168 129 3.19 2,380 3.57 0.0703
2025-11-12 2025-09-30 13F MASTERCARD CL A 57636Q104 4,039 219 5.73 2,297 7.04 0.1983
2025-08-14 2025-06-30 13F MASTERCARD CL A 57636Q104 3,820 -174 -4.36 2,146 -1.96 0.2112
2025-05-06 2025-03-31 13F MASTERCARD CL A 57636Q104 3,994 895 28.88 2,189 34.13 0.2491
2025-02-05 2024-12-31 13F MASTERCARD CL A 57636Q104 3,099 394 14.57 1,632 22.25 0.1890
2024-11-04 2024-09-30 13F MASTERCARD CL A 57636Q104 2,705 188 7.47 1,336 20.27 0.1330
2024-08-05 2024-06-30 13F MASTERCARD CL A 57636Q104 2,517 83 3.41 1,111 -5.29 0.1216
2024-05-09 2024-03-31 13F MASTERCARD CL A 57636Q104 2,434 979 67.29 1,172 89.03 0.1347
2024-02-08 2023-12-31 13F MASTERCARD CL A 57636Q104 1,455 353 32.03 621 42.20 0.0808
2023-11-03 2023-09-30 13F MASTERCARD CL A 57636Q104 1,102 212 23.82 436 24.57 0.0654
2023-08-08 2023-06-30 13F MASTERCARD CL A 57636Q104 890 890 350 0.0573
2022-05-11 2022-03-31 13F MASTERCARD CL A 57636Q104 0 -4,064 -100.00 0 -100.00
2022-02-04 2021-12-31 13F MASTERCARD CL A 57636Q104 4,064 80 2.01 1,461 5.49 0.2981
2021-11-15 2021-09-30 13F MASTERCARD CL A 57636Q104 3,984 -27 -0.67 1,385 -5.46 0.3011
2021-08-10 2021-06-30 13F MASTERCARD CL A 57636Q104 4,011 -36 -0.89 1,465 1.60 0.3040
2021-05-13 2021-03-31 13F MASTERCARD CL A 57636Q104 4,047 115 2.92 1,442 2.71 0.3269
2021-02-10 2020-12-31 13F MASTERCARD CL A 57636Q104 3,932 3,932 1,404 0.3768
2020-11-12 2020-09-30 13F MASTERCARD CL A 57636Q104 0 -941 -100.00 0 -100.00
2020-08-28 2020-06-30 13F MASTERCARD CL A 57636Q104 941 941 278 0.1658
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.