萬事達卡公司
MX ˙ BMV ˙ US57636Q1040
SecurityMX:MA / Mastercard Incorporated
InstitutionSaybrook Capital /nc
Latest Disclosed Ownership16,310 shares
Latest Disclosed Value $ 8,149,455
Saybrook Capital /nc reports 3.26% increase in ownership of MA / Mastercard Incorporated

On May 5, 2026 - Saybrook Capital /nc filed a 13F-HR form disclosing ownership of 16,310 shares of Mastercard Incorporated (MX:MA) valued at $8,149,455 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 15,795 shares of Mastercard Incorporated. This represents a change in shares of 3.26% 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 COM 57636Q104 16,310 515 3.26 8,149 -9.63 2.1944
2026-01-29 2025-12-31 13F Mastercard COM 57636Q104 15,795 0 0.00 9,017 0.37 2.2447
2025-10-16 2025-09-30 13F Mastercard COM 57636Q104 15,795 -40 -0.25 8,984 0.97 2.3474
2025-07-31 2025-06-30 13F Mastercard COM 57636Q104 15,835 0 0.00 8,898 2.52 2.5157
2025-04-23 2025-03-31 13F Mastercard COM 57636Q104 15,835 70 0.44 8,679 4.55 2.3956
2025-02-07 2024-12-31 13F Mastercard COM 57636Q104 15,765 -390 -2.41 8,301 4.06 2.2172
2024-10-25 2024-09-30 13F Mastercard COM 57636Q104 16,155 -718 -4.26 7,977 113,857.14 2.2532
2024-08-07 2024-06-30 13F Mastercard COM 57636Q104 16,873 -850 -4.80 7 -12.50 2.1088
2024-05-03 2024-03-31 13F Mastercard COM 57636Q104 17,723 -110 -0.62 9 14.29 2.2534
2024-01-30 2023-12-31 13F Mastercard COM 57636Q104 17,833 -135 -0.75 8 0.00 2.1103
2023-11-03 2023-09-30 13F Mastercard COM 57636Q104 17,968 -485 -2.63 7 0.00 2.1438
2023-08-02 2023-06-30 13F Mastercard COM 57636Q104 18,453 0 0.00 7 16.67 2.1558
2023-04-28 2023-03-31 13F Mastercard COM 57636Q104 18,453 0 0.00 7 0.00 2.1330
2023-02-08 2022-12-31 13F Mastercard COM 57636Q104 18,453 0 0.00 6 -99.89 2.1299
2022-11-04 2022-09-30 13F Mastercard COM 57636Q104 18,453 125 0.68 5,247 -9.25 1.8477
2022-08-03 2022-06-30 13F Mastercard COM 57636Q104 18,328 60 0.33 5,782 -11.44 1.8854
2022-05-05 2022-03-31 13F Mastercard COM 57636Q104 18,268 -245 -1.32 6,529 -1.85 1.7567
2022-01-28 2021-12-31 13F Mastercard COM 57636Q104 18,513 338 1.86 6,652 5.27 1.6741
2021-11-02 2021-09-30 13F Mastercard COM 57636Q104 18,175 20 0.11 6,319 -4.66 1.7486
2021-07-20 2021-06-30 13F Mastercard COM 57636Q104 18,155 190 1.06 6,628 3.63 1.8087
2021-05-10 2021-03-31 13F Mastercard COM 57636Q104 17,965 0 0.00 6,396 -0.25 1.9430
2021-02-12 2020-12-31 13F Mastercard COM 57636Q104 17,965 -200 -1.10 6,412 4.38 2.0538
2020-11-10 2020-09-30 13F Mastercard COM 57636Q104 18,165 125 0.69 6,143 15.17 2.2066
2020-08-05 2020-06-30 13F Mastercard COM 57636Q104 18,040 -600 -3.22 5,334 18.45 2.1482
2020-05-04 2020-03-31 13F/A-1 Mastercard COM 57636Q104 18,640 -100 -0.53 4,503 -19.53 2.0757
2020-04-27 2020-03-31 13F Mastercard COM 57636Q104 8,811 -9,929 833 526,958.3810
2020-02-05 2019-12-31 13F Mastercard COM 57636Q104 18,740 -155 -0.82 5,596 9.06 2.1825
2019-11-06 2019-09-30 13F Mastercard COM 57636Q104 18,895 -335 -1.74 5,131 0.86 2.1658
2019-08-09 2019-06-30 13F Mastercard COM 57636Q104 19,230 -25 -0.13 5,087 12.20 2.1476
2019-05-10 2019-03-31 13F Mastercard COM 57636Q104 19,255 195 1.02 4,534 26.08 1.9652
2019-02-11 2018-12-31 13F Mastercard COM 57636Q104 19,060 2,287 13.64 3,596 -3.70 1.7163
2018-11-13 2018-09-30 13F Mastercard COM 57636Q104 16,773 -400 -2.33 3,734 10.64 1.6039
2018-08-13 2018-06-30 13F Mastercard COM 57636Q104 17,173 0 0.00 3,375 12.20 1.5466
2018-05-14 2018-03-31 13F Mastercard COM 57636Q104 17,173 640 3.87 3,008 20.22 1.4218
2018-02-14 2017-12-31 13F Mastercard COM 57636Q104 16,533 1,800 12.22 2,502 20.29 1.1571
2017-11-13 2017-09-30 13F Mastercard COM 57636Q104 14,733 0 0.00 2,080 16.27 1.0222
2017-08-14 2017-06-30 13F Mastercard COM 57636Q104 14,733 1,000 7.28 1,789 15.79 0.8983
2017-05-12 2017-03-31 13F Mastercard COM 57636Q104 13,733 1,072 8.47 1,545 18.21 0.8340
2017-02-14 2016-12-31 13F Mastercard COM 57636Q104 12,661 -550 -4.16 1,307 -2.75 0.8279
2016-11-14 2016-09-30 13F Mastercard COM 57636Q104 13,211 1,450 12.33 1,344 29.73 0.8578
2016-08-08 2016-06-30 13F Mastercard COM 57636Q104 11,761 2,950 33.48 1,036 24.37 0.6698
2016-05-09 2016-03-31 13F Mastercard COM 57636Q104 8,811 711 8.78 833 5.58 0.5270
2016-02-12 2015-12-31 13F Mastercard COM 57636Q104 8,100 250 3.18 789 11.60 0.5010
2015-11-13 2015-09-30 13F Mastercard COM 57636Q104 7,850 0 0.00 707 -3.68 0.4743
2015-08-12 2015-06-30 13F Mastercard COM 57636Q104 7,850 1,600 25.60 734 35.93 0.4679
2015-05-11 2015-03-31 13F Mastercard COM 57636Q104 6,250 6,250 540 0.3555
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.