Winmark Corporation
DE ˙ DB ˙ US9742501029
SecurityDE:GBZ / Winmark Corporation
InstitutionWhite Pine Capital Llc
Latest Disclosed Ownership1,580 shares
Latest Disclosed Value $ 675,529
White Pine Capital Llc reports 1.80% decrease in ownership of GBZ / Winmark Corporation

On May 11, 2026 - White Pine Capital Llc filed a 13F-HR form disclosing ownership of 1,580 shares of Winmark Corporation (DE:GBZ) valued at $675,529 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 1,609 shares of Winmark Corporation. This represents a change in shares of -1.80% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-11 2026-03-31 13F WINMARK COM 974250102 1,580 -29 -1.80 676 3.69 0.1902
2026-02-09 2025-12-31 13F WINMARK COM 974250102 1,609 0 0.00 652 -18.62 0.1793
2025-11-10 2025-09-30 13F WINMARK COM 974250102 1,609 -16 -0.98 801 30.51 0.2293
2025-08-12 2025-06-30 13F WINMARK COM 974250102 1,625 0 0.00 614 18.80 0.1948
2025-05-13 2025-03-31 13F WINMARK COM 974250102 1,625 -65 -3.85 517 -22.29 0.1789
2025-01-30 2024-12-31 13F WINMARK COM 974250102 1,690 2 0.12 664 2.79 0.2238
2024-11-12 2024-09-30 13F WINMARK COM 974250102 1,688 -75 -4.25 646 4.03 0.2208
2024-08-13 2024-06-30 13F WINMARK COM 974250102 1,763 -110 -5.87 622 -7.73 0.2356
2024-05-13 2024-03-31 13F WINMARK COM 974250102 1,873 0 0.00 673 -13.94 0.2560
2024-02-05 2023-12-31 13F WINMARK COM 974250102 1,873 0 0.00 782 12.03 0.3014
2023-11-09 2023-09-30 13F WINMARK COM 974250102 1,873 0 0.00 699 12.22 0.2805
2023-08-08 2023-06-30 13F WINMARK COM 974250102 1,873 -71 -3.65 623 0.00 0.2323
2023-05-09 2023-03-31 13F WINMARK COM 974250102 1,944 0 0.00 623 35.81 0.2420
2023-02-16 2022-12-31 13F/A-1 WINMARK COM 974250102 1,944 -276 -12.43 458 -4.58 0.1789
2023-02-10 2022-12-31 13F WINMARK COM 974250102 1,944 -276 458 0.1789
2022-11-08 2022-09-30 13F WINMARK COM 974250102 2,220 0 0.00 480 10.60 0.1998
2022-08-16 2022-06-30 13F WINMARK COM 974250102 2,220 -15 -0.67 434 -11.79 0.1700
2022-05-12 2022-03-31 13F WINMARK COM 974250102 2,235 0 0.00 492 -11.35 0.1524
2022-02-11 2021-12-31 13F WINMARK COM 974250102 2,235 -120 -5.10 555 9.68 0.1640
2021-11-10 2021-09-30 13F WINMARK COM 974250102 2,355 0 0.00 506 2.02 0.1554
2021-08-12 2021-06-30 13F WINMARK COM 974250102 2,355 0 0.00 496 12.98 0.1477
2021-05-12 2021-03-31 13F WINMARK COM 974250102 2,355 40 1.73 439 2.09 0.1394
2021-02-16 2020-12-31 13F WINMARK COM 974250102 2,315 -553 -19.28 430 -12.96 0.1521
2020-11-16 2020-09-30 13F WINMARK COM 974250102 2,868 -75 -2.55 494 -1.98 0.2010
2020-08-12 2020-06-30 13F WINMARK COM 974250102 2,943 0 0.00 504 34.40 0.2137
2020-05-13 2020-03-31 13F WINMARK COM 974250102 2,943 -90 -2.97 375 -37.60 0.1904
2020-02-12 2019-12-31 13F WINMARK COM 974250102 3,033 -86 -2.76 601 9.27 0.2346
2019-11-14 2019-09-30 13F WINMARK COM 974250102 3,119 0 0.00 550 1.85 0.2056
2019-08-14 2019-06-30 13F WINMARK COM 974250102 3,119 -67 -2.10 540 -10.15 0.2015
2019-05-13 2019-03-31 13F WINMARK COM 974250102 3,186 0 0.00 601 18.54 0.2212
2019-05-10 2018-12-31 13F/A-1 WINMARK COM 974250102 3,186 -114 -3.45 507 -7.48 0.2087
2019-02-13 2018-12-31 13F WINMARK COM 974250102 3,186 -114 507
2019-05-10 2018-09-30 13F/A-1 WINMARK COM 974250102 3,300 -1,822 -35.57 548 -27.89 0.1934
2018-11-13 2018-09-30 13F WINMARK COM 974250102 3,300 -1,822 548
2019-05-10 2018-06-30 13F/A-1 WINMARK COM 974250102 5,122 -95 -1.82 760 11.44 0.2713
2018-08-14 2018-06-30 13F WINMARK COM 974250102 5,122 -95 760
2019-05-10 2018-03-31 13F/A-1 WINMARK COM 974250102 5,217 150 2.96 682 3.96 0.2512
2018-05-14 2018-03-31 13F WINMARK COM 974250102 5,217 150 682
2018-02-13 2017-12-31 13F WINMARK COM 974250102 5,067 -103 -1.99 656 -3.67 0.2397
2017-11-13 2017-09-30 13F WINMARK COM 974250102 5,170 0 0.00 681 2.10 0.0017
2017-08-10 2017-06-30 13F WINMARK COM 974250102 5,170 -100 -1.90 667 11.91 0.2631
2017-05-15 2017-03-31 13F WINMARK COM 974250102 5,270 -150 -2.77 596 -12.87 0.2423
2017-02-13 2016-12-31 13F WINMARK COM 974250102 5,420 -182 -3.25 684 15.74 0.2900
2016-11-10 2016-09-30 13F WINMARK COM 974250102 5,602 0 0.00 591 5.91 0.2519
2016-08-12 2016-06-30 13F WINMARK COM 974250102 5,602 0 0.00 558 1.64 0.2348
2016-05-11 2016-03-31 13F WINMARK COM 974250102 5,602 -150 -2.61 549 2.62 0.2349
2016-02-11 2015-12-31 13F WINMARK COM 974250102 5,752 0 0.00 535 -9.63 0.2369
2015-11-12 2015-09-30 13F WINMARK COM 974250102 5,752 -25 -0.43 592 4.04 0.2747
2015-08-13 2015-06-30 13F WINMARK COM 974250102 5,777 -300 -4.94 569 6.95 0.2437
2015-05-13 2015-03-31 13F WINMARK COM 974250102 6,077 -38 -0.62 532 0.00 0.2157
2015-02-13 2014-12-31 13F WINMARK COM 974250102 6,115 -425 -6.50 532 10.60 0.1792
2014-11-13 2014-09-30 13F WINMARK COM 974250102 6,540 -100 -1.51 481 4.11 0.1639
2014-09-17 2014-06-30 13F/A-1 WINMARK COM 974250102 6,640 0 0.00 462 -7.97 0.1595
2014-08-12 2014-06-30 13F WINMARK COM 974250102 6,640 462
2014-09-17 2014-03-31 13F/A-1 WINMARK COM 974250102 6,640 0 0.00 502 -18.37 0.1717
2014-05-14 2014-03-31 13F WINMARK COM 974250102 6,640 502
2014-09-17 2013-12-31 13F/A-1 WINMARK COM 974250102 6,640 -62 -0.93 615 24.49 0.2160
2014-02-13 2013-12-31 13F WINMARK COM 974250102 6,640 615
2014-09-17 2013-09-30 13F/A-1 WINMARK COM 974250102 6,702 -2,126 -24.08 494 -13.79 0.1701
2013-11-12 2013-09-30 13F WINMARK COM 974250102 6,702 494
2013-08-16 2013-06-30 13F/A-1 WINMARK COM 974250102 8,828 0 573 0.2187
2014-09-17 2013-06-30 13F/A-2 WINMARK COM 974250102 8,828 8,828 573 0.1989
2013-08-12 2013-06-30 13F WINMARK COM 974250102 8,828 573 0.2191
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.