Winmark Corporation
DE ˙ DB ˙ US9742501029
SecurityDE:GBZ / Winmark Corporation
InstitutionUs Bancorp \de\
Latest Disclosed Ownership46 shares
Latest Disclosed Value $ 19,667
Us Bancorp \de\ reports 91.67% increase in ownership of GBZ / Winmark Corporation

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 46 shares of Winmark Corporation (DE:GBZ) valued at $19,667 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 24 shares of Winmark Corporation. This represents a change in shares of 91.67% 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)
2026-05-14 2026-03-31 13F WINMARK COM 974250102 46 22 91.67 20 111.11 0.0000
2026-01-30 2025-12-31 13F WINMARK COM 974250102 24 -8 -25.00 10 -43.75 0.0000
2025-11-12 2025-09-30 13F WINMARK COM 974250102 32 -799 -96.15 16 -94.89 0.0000
2025-07-24 2025-06-30 13F WINMARK COM 974250102 831 -484 -36.81 314 -25.12 0.0004
2025-05-08 2025-03-31 13F WINMARK COM 974250102 1,315 -37 -2.74 418 -21.28 0.0006
2025-02-05 2024-12-31 13F WINMARK COM 974250102 1,352 -1,000 -42.52 531 -41.00 0.0007
2024-10-28 2024-09-30 13F WINMARK COM 974250102 2,352 2 0.09 901 8.70 0.0012
2024-08-07 2024-06-30 13F WINMARK COM 974250102 2,350 35 1.51 829 -1.08 0.0011
2024-05-08 2024-03-31 13F WINMARK COM 974250102 2,315 15 0.65 837 -12.81 0.0012
2024-02-09 2023-12-31 13F WINMARK COM 974250102 2,300 -400 -14.81 960 -4.67 0.0014
2023-11-03 2023-09-30 13F WINMARK COM 974250102 2,700 -690 -20.35 1,007 -10.65 0.0016
2023-08-10 2023-06-30 13F WINMARK COM 974250102 3,390 0 0.00 1,127 3.78 0.0018
2023-05-09 2023-03-31 13F WINMARK COMMON STOCK 974250102 3,390 0 0.00 1,086 35.92 0.0018
2023-02-13 2022-12-31 13F WINMARK COMMON STOCK 974250102 3,390 0 0.00 799 9.00 0.0014
2022-10-27 2022-09-30 13F WINMARK COMMON STOCK 974250102 3,390 0 0.00 733 10.56 0.0015
2022-08-01 2022-06-30 13F WINMARK COMMON STOCK 974250102 3,390 -6 -0.18 663 -11.24 0.0013
2022-05-11 2022-03-31 13F WINMARK COMMON STOCK 974250102 3,396 0 0.00 747 -11.39 0.0012
2022-02-11 2021-12-31 13F WINMARK COMMON STOCK 974250102 3,396 0 0.00 843 15.48 0.0013
2021-11-10 2021-09-30 13F WINMARK COMMON STOCK 974250102 3,396 6 0.18 730 12.14 0.0014
2021-08-05 2021-06-30 13F WINMARK COMMON STOCK 974250102 3,390 0 0.00 651 3.01 0.0012
2021-04-28 2021-03-31 13F WINMARK COMMON STOCK 974250102 3,390 0 0.00 632 0.32 0.0013
2021-02-04 2020-12-31 13F WINMARK COMMON STOCK 974250102 3,390 0 0.00 630 7.88 0.0014
2020-11-10 2020-09-30 13F WINMARK COMMON STOCK 974250102 3,390 0 0.00 584 0.52 0.0014
2020-08-07 2020-06-30 13F WINMARK COMMON STOCK 974250102 3,390 -260 -7.12 581 24.95 0.0015
2020-05-13 2020-03-31 13F WINMARK COMMON STOCK 974250102 3,650 234 6.85 465 -31.31 0.0015
2020-02-04 2019-12-31 13F WINMARK COMMON STOCK 974250102 3,416 76 2.28 677 14.94 0.0017
2019-11-08 2019-09-30 13F WINMARK COMMON STOCK 974250102 3,340 0 0.00 589 1.90 0.0016
2019-08-13 2019-06-30 13F WINMARK COMMON STOCK 974250102 3,340 0 0.00 578 -8.25 0.0016
2019-05-08 2019-03-31 13F WINMARK COMMON STOCK 974250102 3,340 10 0.30 630 19.09 0.0018
2019-02-13 2018-12-31 13F WINMARK COMMON STOCK 974250102 3,330 0 0.00 529 -4.34 0.0017
2018-10-31 2018-09-30 13F WINMARK COMMON STOCK 974250102 3,330 0 0.00 553 11.94 0.0016
2018-08-08 2018-06-30 13F WINMARK COMMON STOCK 974250102 3,330 0 0.00 494 13.30 0.0015
2018-05-08 2018-03-31 13F WINMARK COMMON STOCK 974250102 3,330 3,300 11,000.00 436 10,800.00 0.0013
2018-02-02 2017-12-31 13F WINMARK COMMON STOCK 974250102 30 0 0.00 4 0.00 0.0000
2017-11-13 2017-09-30 13F WINMARK COMMON STOCK 974250102 30 30 4 0.0000
2016-05-13 2016-03-31 13F WINMARK COMMON STOCK 974250102 0 -400 -100.00 0 -100.00
2016-02-10 2015-12-31 13F WINMARK COMMON STOCK 974250102 400 -24 -5.66 37 -15.91 0.0001
2015-11-16 2015-09-30 13F WINMARK COMMON STOCK 974250102 424 0 0.00 44 4.76 0.0002
2015-08-10 2015-06-30 13F WINMARK COMMON STOCK 974250102 424 24 6.00 42 20.00 0.0002
2015-05-08 2015-03-31 13F WINMARK COMMON STOCK 974250102 400 400 -38.84 35 -16.67 0.0001
2013-11-07 2013-09-30 13F WINMARK COMMON STOCK 974250102 0 -654 -100.00 0 -100.00
2013-08-09 2013-06-30 13F WINMARK COMMON STOCK 974250102 654 654 42 0.0002
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.