Mastercard Incorporated
IT ˙ BIT ˙ US57636Q1040
416,40 € ↑15,10 (3,76%)
2026-06-04
DEL PRIS
SecurityIT:1MA / Mastercard Incorporated
InstitutionBlume Capital Management, Inc.
Latest Disclosed Ownership364 shares
Latest Disclosed Value $ 181,877
Blume Capital Management, Inc. ownership in 1MA / Mastercard Incorporated

On May 1, 2026 - Blume Capital Management, Inc. filed a 13F-HR form disclosing ownership of 364 shares of Mastercard Incorporated (IT:1MA) valued at $156,575 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 364 shares of Mastercard Incorporated. This represents a change in shares of 0.00% during the quarter. The current value of the position is $151,570 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)
2026-05-01 2026-03-31 13F MASTERCARD CL A 57636Q104 364 0 0.00 182 -12.56 0.0309
2026-02-05 2025-12-31 13F MASTERCARD CL A 57636Q104 364 0 0.00 208 0.00 0.0378
2025-11-06 2025-09-30 13F MASTERCARD CL A 57636Q104 364 -4 -1.09 207 0.49 0.0393
2025-07-30 2025-06-30 13F MASTERCARD CL A 57636Q104 368 3 0.82 207 3.00 0.0416
2025-05-06 2025-03-31 13F MASTERCARD CL A 57636Q104 365 1 0.27 200 4.71 0.0448
2025-02-10 2024-12-31 13F MASTERCARD CL A 57636Q104 364 -16 -4.21 192 2.14 0.0429
2024-10-29 2024-09-30 13F MASTERCARD CL A 57636Q104 380 16 4.40 188 16.88 0.0420
2024-08-05 2024-06-30 13F MASTERCARD CL A 57636Q104 364 0 0.00 161 -8.57 0.0387
2024-05-02 2024-03-31 13F MASTERCARD CL A 57636Q104 364 0 0.00 175 12.90 0.0423
2024-05-02 2023-12-31 13F/A-1 MASTERCARD CL A 57636Q104 364 0 0.00 155 7.64 0.0406
2024-02-07 2023-12-31 13F MASTERCARD CL A 57636Q104 364 0 155 0.0406
2024-05-02 2023-09-30 13F/A-1 MASTERCARD CL A 57636Q104 364 0 0.00 144 0.70 0.0426
2023-11-03 2023-09-30 13F MASTERCARD CL A 57636Q104 364 0 144 0.0426
2024-05-02 2023-06-30 13F/A-1 MASTERCARD CL A 57636Q104 364 0 0.00 143 8.33 0.0419
2023-08-10 2023-06-30 13F MASTERCARD CL A 57636Q104 364 0 143 0.0419
2024-05-02 2023-03-31 13F/A-1 Mastercard CL A 57636Q104 364 0 0.00 132 4.76 0.0419
2023-05-08 2023-03-31 13F Mastercard CL A 57636Q104 364 0 132 0.0419
2023-02-08 2022-12-31 13F Mastercard CL A 57636Q104 364 0 0.00 127 22.33 0.0427
2022-11-15 2022-09-30 13F MASTERCARD CL A 57636Q104 364 0 0.00 103 -10.43 0.0388
2022-08-11 2022-06-30 13F MASTERCARD CL A 57636Q104 364 0 0.00 115 -11.54 0.0454
2022-05-12 2022-03-31 13F Mastercard CL A 57636Q104 364 0 0.00 130 -0.76 0.0429
2022-02-07 2021-12-31 13F Mastercard CL A 57636Q104 364 0 0.00 131 3.15 0.0432
2021-11-12 2021-09-30 13F Mastercard CL A 57636Q104 364 0 0.00 127 -4.51 0.0465
2021-08-10 2021-06-30 13F Mastercard CL A 57636Q104 364 0 0.00 133 2.31 0.0486
2021-05-10 2021-03-31 13F Mastercard CL A 57636Q104 364 64 21.33 130 21.50 0.0512
2021-02-09 2020-12-31 13F Mastercard CL A 57636Q104 300 0 0.00 107 5.94 0.0458
2020-11-12 2020-09-30 13F Mastercard CL A 57636Q104 300 0 0.00 101 13.48 0.0512
2020-08-06 2020-06-30 13F Mastercard CL A 57636Q104 300 0 0.00 89 23.61 0.0493
2020-05-07 2020-03-31 13F Mastercard CL A 57636Q104 300 0 0.00 72 -19.10 0.0461
2020-02-05 2019-12-31 13F Mastercard CL A 57636Q104 300 -25 -7.69 89 1.14 0.0435
2019-11-12 2019-09-30 13F Mastercard CL A 57636Q104 325 0 0.00 88 2.33 0.0439
2019-07-29 2019-06-30 13F Mastercard CL A 57636Q104 325 0 0.00 86 11.69 0.0435
2019-05-06 2019-03-31 13F Mastercard CL A 57636Q104 325 0 0.00 77 26.23 0.0404
2019-02-05 2018-12-31 13F Mastercard CL A 57636Q104 325 0 0.00 61 -15.28 0.0348
2018-11-02 2018-09-30 13F Mastercard CL A 57636Q104 325 0 0.00 72 12.50 0.0376
2018-08-02 2018-06-30 13F Mastercard CL A 57636Q104 325 -25 -7.14 64 4.92 0.0349
2018-05-04 2018-03-31 13F Mastercard CL A 57636Q104 350 0 0.00 61 15.09 0.0339
2018-02-09 2017-12-31 13F Mastercard CL A 57636Q104 350 0 0.00 53 8.16 0.0271
2018-02-14 2017-09-30 13F/A-1 Mastercard CL A 57636Q104 350 0 0.00 49 13.95 0.0259
2017-11-13 2017-09-30 13F Mastercard CL A 57636Q104 350 0 49
2017-08-08 2017-06-30 13F Mastercard CL A 57636Q104 350 0 0.00 43 10.26 0.0244
2017-05-12 2017-03-31 13F Mastercard CL A 57636Q104 350 0 0.00 39 8.33 0.0226
2017-01-30 2016-12-31 13F Mastercard CL A 57636Q104 350 0 0.00 36 0.00 0.0216
2016-11-07 2016-09-30 13F Mastercard CL A 57636Q104 350 0 0.00 36 16.13 0.0221
2016-08-11 2016-06-30 13F/A-1 Mastercard CL A 57636Q104 350 0 0.00 31 -6.06 0.0205
2016-08-04 2016-06-30 13F Mastercard CL A 57636Q104 0 31
2016-05-12 2016-03-31 13F Mastercard CL A 57636Q104 350 0 0.00 33 -2.94 0.0228
2016-05-26 2015-12-31 13F/A-1 Mastercard CL A 57636Q104 350 0 0.00 34 6.25 0.0240
2016-02-08 2015-12-31 13F MASTERCARD CL A 57636Q104 350 34
2015-11-05 2015-09-30 13F MASTERCARD CL A 57636Q104 350 0 0.00 32 -3.03 0.0260
2015-08-11 2015-06-30 13F MASTERCARD CL A 57636Q104 350 0 0.00 33 10.00 0.0250
2015-05-05 2015-03-31 13F MASTERCARD CL A 57636Q104 350 -500 -58.82 30 -58.90 0.0208
2015-02-10 2014-12-31 13F MASTERCARD CL A 57636Q104 850 850 73 0.0515
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.