Mastercard Incorporated
IT ˙ BIT ˙ US57636Q1040
420,60 € ↑4,20 (1,01%)
2026-06-05
DEL PRIS
SecurityIT:1MA / Mastercard Incorporated
InstitutionBlair William & Co/il
Latest Disclosed Ownership923,405 shares
Latest Disclosed Value $ 461,388,665
Blair William & Co/il reports 3.33% decrease in ownership of 1MA / Mastercard Incorporated

On May 8, 2026 - Blair William & Co/il filed a 13F-HR form disclosing ownership of 923,405 shares of Mastercard Incorporated (IT:1MA) valued at $397,202,661 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 955,188 shares of Mastercard Incorporated. This represents a change in shares of -3.33% during the quarter. The current value of the position is $388,384,143 USD.

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)
2026-05-08 2026-03-31 13F MASTERCARD CL A 57636Q104 923,405 -31,783 -3.33 461,389 -15.39 1.3222
2026-02-17 2025-12-31 13F MASTERCARD CL A 57636Q104 955,188 -21,409 -2.19 545,298 -1.84 1.1324
2025-11-12 2025-09-30 13F MASTERCARD CL A 57636Q104 976,597 -30,726 -3.05 555,498 -1.87 1.4786
2025-07-24 2025-06-30 13F MASTERCARD CL A 57636Q104 1,007,323 -13,372 -1.31 566,055 1.18 1.5723
2025-05-09 2025-03-31 13F MASTERCARD CL A 57636Q104 1,020,695 -18,996 -1.83 559,464 2.19 1.6873
2025-02-12 2024-12-31 13F MASTERCARD CL A 57636Q104 1,039,691 -1,458 -0.14 547,470 6.49 1.5925
2024-11-12 2024-09-30 13F MASTERCARD CL A 57636Q104 1,041,149 -5,593 -0.53 514,119 11.33 1.5099
2024-08-12 2024-06-30 13F MASTERCARD CL A 57636Q104 1,046,742 120 0.01 461,781 -8.38 1.4243
2024-05-09 2024-03-31 13F MASTERCARD CL A 57636Q104 1,046,622 -143,030 -12.02 504,022 -0.67 1.5831
2024-02-12 2023-12-31 13F MASTERCARD CL A 57636Q104 1,189,652 -12,409 -1.03 507,398 6.62 1.7290
2023-11-09 2023-09-30 13F MASTERCARD CL A 57636Q104 1,202,061 2,144 0.18 475,908 0.84 1.8251
2023-08-11 2023-06-30 13F MASTERCARD CL A 57636Q104 1,199,917 -5,970 -0.50 471,927 7.69 1.7288
2023-05-12 2023-03-31 13F MASTERCARD CL A 57636Q104 1,205,887 4,646 0.39 438,232 4.91 1.7506
2023-02-10 2022-12-31 13F MASTERCARD CL A 57636Q104 1,201,241 -13,201 -1.09 417,707 20.96 1.8163
2022-11-09 2022-09-30 13F MASTERCARD CL A 57636Q104 1,214,442 6,084 0.50 345,314 -9.42 1.5860
2022-08-10 2022-06-30 13F MASTERCARD CL A 57636Q104 1,208,358 -10,107 -0.83 381,213 -12.46 1.6913
2022-05-13 2022-03-31 13F MASTERCARD CL A 57636Q104 1,218,465 15,186 1.26 435,455 0.72 1.5263
2022-02-14 2021-12-31 13F MASTERCARD CL A 57636Q104 1,203,279 -25,985 -2.11 432,362 1.16 1.3561
2021-11-12 2021-09-30 13F MASTERCARD CL A 57636Q104 1,229,264 33,662 2.82 427,390 -2.09 1.4549
2021-08-12 2021-06-30 13F MASTERCARD CL A 57636Q104 1,195,602 590 0.05 436,502 2.59 1.5126
2021-05-13 2021-03-31 13F MASTERCARD CL A 57636Q104 1,195,012 8,900 0.75 425,484 0.50 1.6051
2021-02-09 2020-12-31 13F MASTERCARD CL A 57636Q104 1,186,112 6,445 0.55 423,371 6.13 1.5521
2020-11-06 2020-09-30 13F MASTERCARD CL A 57636Q104 1,179,667 -15,259 -1.28 398,928 12.90 1.6921
2020-08-12 2020-06-30 13F MASTERCARD CL A 57636Q104 1,194,926 52,307 4.58 353,340 28.02 1.6847
2020-05-11 2020-03-31 13F MASTERCARD CL A 57636Q104 1,142,619 -66,636 -5.51 276,011 -23.56 1.7252
2020-02-13 2019-12-31 13F MASTERCARD CL A 57636Q104 1,209,255 53,871 4.66 361,071 15.08 1.8558
2019-11-12 2019-09-30 13F MASTERCARD CL A 57636Q104 1,155,384 -19,554 -1.66 313,768 0.95 1.8079
2019-08-13 2019-06-30 13F MASTERCARD CL A 57636Q104 1,174,938 35,478 3.11 310,806 15.85 1.7771
2019-05-14 2019-03-31 13F MASTERCARD CL A 57636Q104 1,139,460 29,886 2.69 268,286 28.17 1.6356
2019-02-14 2018-12-31 13F MASTERCARD CL A 57636Q104 1,109,574 -10,676 -0.95 209,321 -16.06 1.5287
2018-11-13 2018-09-30 13F MASTERCARD CL A 57636Q104 1,120,250 -17,307 -1.52 249,379 11.55 1.5279
2018-08-13 2018-06-30 13F MASTERCARD CL A 57636Q104 1,137,557 -12,882 -1.12 223,553 10.94 1.5204
2018-05-15 2018-03-31 13F MASTERCARD CL A 57636Q104 1,150,439 -117,966 -9.30 201,511 4.96 1.4250
2018-02-14 2017-12-31 13F MASTERCARD CL A 57636Q104 1,268,405 33,375 2.70 191,986 10.09 1.3032
2017-11-13 2017-09-30 13F MASTERCARD INC - A COM 57636Q104 1,235,030 -6,359 -0.51 174,386 15.67 1.3077
2017-08-04 2017-06-30 13F MASTERCARD INC - A COM 57636Q104 1,241,389 -1,797 -0.14 150,767 8.31 1.1321
2017-05-10 2017-03-31 13F MASTERCARD INC - A COM 57636Q104 1,243,186 2,607 0.21 139,195 8.67 1.1218
2017-02-14 2016-12-31 13F MASTERCARD INC - A COM 57636Q104 1,240,579 8,699 0.71 128,090 2.17 1.1457
2016-11-14 2016-09-30 13F MASTERCARD INC - A COM 57636Q104 1,231,880 29,502 2.45 125,368 18.40 1.1081
2016-08-08 2016-06-30 13F MASTERCARD INC- COM 57636Q104 1,202,378 2,163 0.18 105,881 -6.65 0.9873
2016-05-16 2016-03-31 13F MASTERCARD INC- COM 57636Q104 1,200,215 -48,352 -3.87 113,420 -6.70 1.0678
2016-02-16 2015-12-31 13F MASTERCARD INC- COM 57636Q104 1,248,567 -381,557 -23.41 121,560 -17.25 1.1413
2015-11-12 2015-09-30 13F MASTERCARD INC- COM 57636Q104 1,630,124 -2,612,132 -61.57 146,906 -62.96 1.2709
2015-08-03 2015-06-30 13F MASTERCARD INC- COM 57636Q104 4,242,256 222,940 5.55 396,566 14.21 0.5931
2015-05-11 2015-03-31 13F MASTERCARD INC- COM 57636Q104 4,019,316 4,019,316 0.00 347,228 0.5346
2015-02-05 2014-12-31 13F MASTERCARD INC- COM 57636Q104 0 -3,608,107 -100.00 0 -100.00
2014-11-04 2014-09-30 13F MASTERCARD INC- COM 57636Q104 3,608,107 89,888 2.55 266,711 3.18 0.4563
2014-08-01 2014-06-30 13F MASTERCARD INC- COM 57636Q104 3,518,219 -61,446 -1.72 258,483 -3.33 0.4221
2014-05-06 2014-03-31 13F MASTERCARD INC- COM 57636Q104 3,579,665 3,244,963 969.51 267,400 -4.37 0.4424
2014-02-11 2013-12-31 13F MASTERCARD INC- COM 57636Q104 334,702 -50,453 -13.10 279,629 7.91 0.4622
2013-11-12 2013-09-30 13F MASTERCARD INC- COM 57636Q104 385,155 -4,795 -1.23 259,124 15.67 0.4608
2013-08-07 2013-06-30 13F MASTERCARD INC- COM 57636Q104 389,950 389,950 224,026 0.4430
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.