Mastercard Incorporated
CH ˙ SWX ˙ US57636Q1040
SecurityCH:MA / Mastercard Incorporated
InstitutionFlagship Harbor Advisors, Llc
Latest Disclosed Ownership8,093 shares
Latest Disclosed Value $ 4,043,560
Flagship Harbor Advisors, Llc reports 2.52% increase in ownership of MA / Mastercard Incorporated

On April 28, 2026 - Flagship Harbor Advisors, Llc filed a 13F-HR form disclosing ownership of 8,093 shares of Mastercard Incorporated (CH:MA) valued at $4,043,560 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 7,894 shares of Mastercard Incorporated. This represents a change in shares of 2.52% 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)
2026-04-28 2026-03-31 13F MASTERCARD CL A 57636Q104 8,093 199 2.52 4,044 -10.28 0.1778
2026-01-21 2025-12-31 13F MASTERCARD Common Stock 57636Q104 7,894 -1,296 -14.10 4,507 -13.79 0.2127
2025-11-05 2025-09-30 13F MASTERCARD CL A 57636Q104 9,190 -43 -0.47 5,227 0.75 0.2274
2025-08-04 2025-06-30 13F MASTERCARD CL A 57636Q104 9,233 34 0.37 5,189 2.92 0.2458
2025-04-22 2025-03-31 13F MASTERCARD CL A 57636Q104 9,199 8 0.09 5,042 4.17 0.2651
2025-01-21 2024-12-31 13F MASTERCARD CL A 57636Q104 9,191 -45 -0.49 4,840 6.12 0.2542
2024-10-21 2024-09-30 13F MASTERCARD CL A 57636Q104 9,236 52 0.57 4,560 12.56 0.2505
2025-12-02 2024-06-30 13F MASTERCARD CL A 57636Q104 9,184 -47 -0.51 4,051 -8.86 0.2435
2024-04-16 2024-03-31 13F MASTERCARD CL A 57636Q104 9,231 -513 -5.26 4,445 6.98 0.2857
2024-01-10 2023-12-31 13F MASTERCARD CL A 57636Q104 9,744 2,992 44.31 4,156 55.50 0.3022
2023-10-17 2023-09-30 13F MASTERCARD CL A 57636Q104 6,752 -173 -2.50 2,673 -1.87 0.2223
2023-07-11 2023-06-30 13F MASTERCARD CL A 57636Q104 6,925 -123 -1.75 2,723 6.33 0.2250
2023-04-12 2023-03-31 13F MASTERCARD CL A 57636Q104 7,048 278 4.11 2,561 8.84 0.2412
2023-01-13 2022-12-31 13F MASTERCARD CL A 57636Q104 6,770 -87 -1.27 2,354 20.67 0.2413
2022-10-13 2022-09-30 13F MASTERCARD CL A 57636Q104 6,857 -133 -1.90 1,950 -11.56 0.2262
2022-07-13 2022-06-30 13F MASTERCARD CL A 57636Q104 6,990 136 1.98 2,205 -9.96 0.2477
2022-04-13 2022-03-31 13F MASTERCARD CL A 57636Q104 6,854 -260 -3.65 2,449 -4.19 0.2360
2022-02-17 2021-12-31 13F/A-1 MASTERCARD CL A 57636Q104 7,114 1,439 25.36 2,556 23.36 0.2419
2022-02-10 2021-12-31 13F MASTERCARD CL A 57636Q104 7,114 1,439 2,556 0.2419
2021-11-01 2021-09-30 13F MASTERCARD CL A 57636Q104 5,675 0 0.00 2,072 0.00 0.2226
2021-07-26 2021-06-30 13F MASTERCARD CL A 57636Q104 5,675 60 1.07 2,072 3.65 0.2223
2021-05-03 2021-03-31 13F MASTERCARD CL A 57636Q104 5,615 -59 -1.04 1,999 -1.28 0.2269
2021-02-08 2020-12-31 13F MASTERCARD CL A 57636Q104 5,674 589 11.58 2,025 17.80 0.2511
2020-10-13 2020-09-30 13F MASTERCARD Common Stock 57636Q104 5,085 -212 -4.00 1,719 9.77 0.2321
2020-07-31 2020-06-30 13F MASTERCARD Common Stock 57636Q104 5,297 285 5.69 1,566 29.31 0.2299
2020-05-12 2020-03-31 13F MASTERCARD Common Stock 57636Q104 5,012 257 5.40 1,211 -14.72 0.2422
2020-02-14 2019-12-31 13F MASTERCARD Common Stock 57636Q104 4,755 -205 -4.13 1,420 5.42 0.2487
2019-10-22 2019-09-30 13F MASTERCARD Common Stock 57636Q104 4,960 -158 -3.09 1,347 -0.52 0.2640
2019-07-22 2019-06-30 13F MASTERCARD Common Stock 57636Q104 5,118 317 6.60 1,354 19.82 0.2810
2019-04-15 2019-03-31 13F MASTERCARD Common Stock 57636Q104 4,801 236 5.17 1,130 31.24 0.2321
2019-01-26 2018-12-31 13F MASTERCARD COM 57636Q104 4,565 -1,321 -22.44 861 -34.62 0.2092
2018-11-05 2018-09-30 13F MASTERCARD Common Stock 57636Q104 5,886 673 12.91 1,317 28.61 0.2442
2018-08-14 2018-06-30 13F MASTERCARD Common Stock 57636Q104 5,213 1,298 33.15 1,024 51.93 0.2049
2018-04-23 2018-03-31 13F MASTERCARD CL A 57636Q104 3,915 812 26.17 674 36.44 0.2004
2018-01-24 2017-12-31 13F MASTERCARD CL A 57636Q104 3,103 268 9.45 494 20.78 0.1420
2017-10-23 2017-09-30 13F MASTERCARD CL A 57636Q104 2,835 515 22.20 409 44.52 0.1327
2017-08-09 2017-06-30 13F MASTERCARD CL A 57636Q104 2,320 -75 -3.13 283 5.99 0.0983
2017-05-16 2017-03-31 13F MASTERCARD CL A 57636Q104 2,395 -374 -13.51 267 -11.88 0.1020
2017-05-15 2016-12-31 13F MASTERCARD CL A 57636Q104 2,769 2,769 303 0.1308
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.