Winmark Corporation
DE ˙ DB ˙ US9742501029
SecurityDE:GBZ / Winmark Corporation
InstitutionBessemer Group Inc
Latest Disclosed Ownership42,738 shares
Latest Disclosed Value $ 18,273
Bessemer Group Inc reports 3.49% increase in ownership of GBZ / Winmark Corporation

On May 6, 2026 - Bessemer Group Inc filed a 13F-HR form disclosing ownership of 42,738 shares of Winmark Corporation (DE:GBZ) valued at $18,273 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 41,298 shares of Winmark Corporation. This represents a change in shares of 3.49% 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)
2026-05-06 2026-03-31 13F WINMARK SC 974250102 42,738 1,440 3.49 18 12.50 0.0287
2026-02-05 2025-12-31 13F WINMARK SC 974250102 41,298 7,369 21.72 17 0.00 0.0257
2025-11-05 2025-09-30 13F WINMARK SC 974250102 33,929 -23,890 -41.32 17 -23.81 0.0258
2025-08-01 2025-06-30 13F WINMARK SC 974250102 57,819 2,687 4.87 22 23.53 0.0354
2025-04-23 2025-03-31 13F WINMARK SC 974250102 55,132 2,142 4.04 18 -15.00 0.0314
2025-02-13 2024-12-31 13F WINMARK SC 974250102 52,990 2,005 3.93 21 5.26 0.0340
2024-11-12 2024-09-30 13F WINMARK SC 974250102 50,985 -17,786 -25.86 20 -20.83 0.0322
2024-08-13 2024-06-30 13F WINMARK SC 974250102 68,771 20,556 42.63 24 41.18 0.0428
2024-08-13 2024-03-31 13F/A-1 WINMARK SC 974250102 48,215 3,512 7.86 17 -5.56 0.0315
2024-05-13 2024-03-31 13F WINMARK SC 974250102 48,215 3,512 17 0.0315
2024-02-09 2023-12-31 13F WINMARK SC 974250102 44,703 9,145 25.72 19 38.46 0.0364
2023-11-13 2023-09-30 13F WINMARK SC 974250102 35,558 11,323 46.72 13 62.50 0.0291
2023-08-10 2023-06-30 13F WINMARK SC 974250102 24,235 24,235 8 0.0171
2022-11-09 2022-09-30 13F WINMARK SC 974250102 0 -7 -100.00 0 -100.00
2022-08-10 2022-06-30 13F WINMARK SC 974250102 7 0 0.00 1 -50.00 0.0000
2022-05-12 2022-03-31 13F WINMARK SC 974250102 7 0 0.00 2 0.00 0.0000
2022-01-27 2021-12-31 13F WINMARK SC 974250102 7 0 0.00 2 0.00 0.0000
2021-11-12 2021-09-30 13F WINMARK SC 974250102 7 0 0.00 2 100.00 0.0000
2021-08-06 2021-06-30 13F WINMARK SC 974250102 7 0 0.00 1 0.00 0.0000
2021-05-13 2021-03-31 13F WINMARK SC 974250102 7 0 0.00 1 0.00 0.0000
2021-02-09 2020-12-31 13F WINMARK SC 974250102 7 0 0.00 1 0.00 0.0000
2020-11-12 2020-09-30 13F WINMARK SC 974250102 7 -8,600 -99.92 1 -99.93 0.0000
2020-08-05 2020-06-30 13F WINMARK SC 974250102 8,607 0 0.00 1,474 34.37 0.0047
2020-04-30 2020-03-31 13F WINMARK SC 974250102 8,607 0 0.00 1,097 -35.70 0.0044
2020-02-04 2019-12-31 13F WINMARK SC 974250102 8,607 1,207 16.31 1,706 30.73 0.0055
2019-11-07 2019-09-30 13F WINMARK SC 974250102 7,400 1,000 15.62 1,305 17.78 0.0047
2019-07-19 2019-06-30 13F WINMARK SC 974250102 6,400 2,000 45.45 1,108 33.49 0.0037
2019-05-13 2019-03-31 13F WINMARK SC 974250102 4,400 1,500 51.72 830 80.04 0.0032
2019-05-21 2018-12-31 13F/A-1 WINMARK SC 974250102 2,900 1,100 61.11 461 54.18 0.0020
2019-02-12 2018-12-31 13F WINMARK SC 974250102 2,900 1,100 461 0.0020
2018-11-06 2018-09-30 13F WINMARK SC 974250102 1,800 0 0.00 299 11.99 0.0011
2018-07-25 2018-06-30 13F WINMARK SC 974250102 1,800 700 63.64 267 85.42 0.0010
2018-05-10 2018-03-31 13F WINMARK SC 974250102 1,100 0 0.00 144 1.41 0.0006
2018-01-30 2017-12-31 13F WINMARK SC 974250102 1,100 300 37.50 142 35.24 0.0006
2017-11-03 2017-09-30 13F WINMARK SC 974250102 800 0 0.00 105 1.94 0.0004
2017-07-27 2017-06-30 13F WINMARK SC 974250102 800 -200 -20.00 103 -8.85 0.0004
2017-05-12 2017-03-31 13F WINMARK SC 974250102 1,000 0 0.00 113 -10.32 0.0005
2017-02-07 2016-12-31 13F WINMARK SC 974250102 1,000 0 0.00 126 18.87 0.0006
2016-11-10 2016-09-30 13F WINMARK SC 974250102 1,000 1,000 106 0.0005
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.