Winmark Corporation
DE ˙ DB ˙ US9742501029
SecurityDE:GBZ / Winmark Corporation
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership74,379 shares
Latest Disclosed Value $ 31,800,234
Dimensional Fund Advisors Lp reports 5.34% increase in ownership of GBZ / Winmark Corporation

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 74,379 shares of Winmark Corporation (DE:GBZ) valued at $31,800,234 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 70,608 shares of Winmark Corporation. This represents a change in shares of 5.34% 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)
2026-05-07 2026-03-31 13F WINMARK COM 974250102 74,379 3,771 5.34 31,800 11.22 0.0014
2026-02-12 2025-12-31 13F WINMARK COM 974250102 70,608 -5,696 -7.46 28,592 -24.73 0.0060
2025-11-12 2025-09-30 13F WINMARK COM 974250102 76,304 -5,005 -6.16 37,983 23.72 0.0082
2025-08-12 2025-06-30 13F WINMARK COM 974250102 81,309 -11,419 -12.31 30,703 4.17 0.0071
2025-05-13 2025-03-31 13F WINMARK COM 974250102 92,728 -9,676 -9.45 29,474 -26.78 0.0073
2025-02-13 2024-12-31 13F WINMARK COM 974250102 102,404 -3,129 -2.96 40,252 -0.40 0.0097
2024-11-07 2024-09-30 13F WINMARK COM 974250102 105,533 -2,796 -2.58 40,412 5.79 0.0098
2024-08-09 2024-06-30 13F WINMARK COM 974250102 108,329 -8,008 -6.88 38,200 -9.22 0.0100
2024-05-10 2024-03-31 13F WINMARK COM 974250102 116,337 2,766 2.44 42,079 -11.27 0.0114
2024-02-07 2023-12-31 13F WINMARK COM 974250102 113,571 -8,130 -6.68 47,422 4.43 0.0138
2023-11-09 2023-09-30 13F WINMARK COM 974250102 121,701 -5,829 -4.57 45,412 7.10 0.0149
2023-08-09 2023-06-30 13F WINMARK COM 974250102 127,530 -1,689 -1.31 42,401 2.40 0.0135
2023-05-12 2023-03-31 13F WINMARK COM 974250102 129,219 509 0.40 41,405 137,916.67 0.0139
2023-02-09 2022-12-31 13F WINMARK COM 974250102 128,710 985 0.77 30 -99.89 0.0090
2022-11-10 2022-09-30 13F WINMARK COM 974250102 127,725 -314 -0.25 27,633 10.35 0.0106
2022-08-12 2022-06-30 13F WINMARK COM 974250102 128,039 -770 -0.60 25,041 -11.64 0.0090
2022-05-13 2022-03-31 13F WINMARK COM 974250102 128,809 -42 -0.03 28,339 -11.42 0.0087
2022-02-09 2021-12-31 13F WINMARK COM 974250102 128,851 -1,297 -1.00 31,992 14.31 0.0097
2021-11-12 2021-09-30 13F WINMARK COM 974250102 130,148 -1,016 -0.77 27,987 11.09 0.0090
2021-08-12 2021-06-30 13F WINMARK COM 974250102 131,164 -2,505 -1.87 25,194 1.33 0.0080
2021-05-14 2021-03-31 13F WINMARK COM 974250102 133,669 -11,530 -7.94 24,863 -7.84 0.0082
2021-03-08 2020-12-31 13F/A-2 WINMARK COM 974250102 145,199 -10,015 -6.45 26,978 0.95 0.0097
2021-02-11 2020-12-31 13F WINMARK COM 974250102 145,199 -10,015 26,978 9,743.0196
2020-11-12 2020-09-30 13F WINMARK COM 974250102 155,214 -9,519 -5.78 26,724 -5.26 0.0113
2020-08-13 2020-06-30 13F WINMARK COM 974250102 164,733 -4,598 -2.72 28,209 30.74 0.0124
2020-05-14 2020-03-31 13F WINMARK COM 974250102 169,331 -1,652 -0.97 21,576 -36.37 0.0112
2020-02-14 2019-12-31 13F WINMARK COM 974250102 170,983 -1,485 -0.86 33,906 11.45 0.0124
2019-11-12 2019-09-30 13F WINMARK COM 974250102 172,468 -2,009 -1.15 30,422 0.70 0.0118
2019-08-13 2019-06-30 13F WINMARK COM 974250102 174,477 -1,265 -0.72 30,211 -8.84 0.0117
2019-08-12 2019-03-31 13F/A-2 WINMARK COM 974250102 175,742 73 0.04 33,141 18.65 0.0132
2019-05-10 2019-03-31 13F WINMARK COM 974250102 175,742 73 33,141
2019-02-26 2018-12-31 13F/A-1 WINMARK COM 974250102 175,669 655 0.37 27,931 -3.86 0.0127
2019-02-13 2018-12-31 13F WINMARK COM 974250102 175,669 655 27,931
2018-11-13 2018-09-30 13F WINMARK COM 974250102 175,014 1,066 0.61 29,052 12.51 0.0111
2018-08-10 2018-06-30 13F WINMARK COM 974250102 173,948 742 0.43 25,822 13.98 0.0103
2018-05-11 2018-03-31 13F WINMARK COM 974250102 173,206 841 0.49 22,655 1.57 0.0094
2018-02-12 2017-12-31 13F WINMARK COM 974250102 172,365 2,699 1.59 22,304 -0.22 0.0092
2017-11-13 2017-09-30 13F WINMARK COM 974250102 169,666 3,204 1.92 22,354 4.14 0.0098
2017-08-11 2017-06-30 13F WINMARK COM 974250102 166,462 3,493 2.14 21,466 16.56 0.0099
2017-05-12 2017-03-31 13F WINMARK COM 974250102 162,969 45 0.03 18,416 -10.40 0.0088
2017-02-09 2016-12-31 13F WINMARK COM 974250102 162,924 -3,824 -2.29 20,553 16.81 0.0103
2016-11-10 2016-09-30 13F WINMARK COM 974250102 166,748 -1,134 -0.68 17,595 5.15 0.0095
2016-08-09 2016-06-30 13F WINMARK COM 974250102 167,882 -746 -0.44 16,733 1.27 0.0096
2016-05-13 2016-03-31 13F WINMARK COM 974250102 168,628 -86 -0.05 16,523 5.30 0.0099
2016-02-10 2015-12-31 13F WINMARK COM 974250102 168,714 933 0.56 15,692 -9.13 0.0098
2015-11-13 2015-09-30 13F WINMARK COM 974250102 167,781 306 0.18 17,268 4.68 0.0113
2015-08-14 2015-06-30 13F WINMARK COM 974250102 167,475 -276 -0.16 16,496 12.29 0.0101
2015-05-14 2015-03-31 13F WINMARK COM 974250102 167,751 1,190 0.71 14,690 1.47 0.0093
2015-02-06 2014-12-31 13F WINMARK COM 974250102 166,561 2,178 1.32 14,477 19.82 0.0095
2014-11-13 2014-09-30 13F WINMARK COM 974250102 164,383 415 0.25 12,082 5.82 0.0086
2014-08-08 2014-06-30 13F WINMARK COM 974250102 163,968 10,632 6.93 11,417 -1.59 0.0079
2014-05-14 2014-03-31 13F WINMARK COM 974250102 153,336 4,334 2.91 11,601 -15.94 0.0087
2014-02-12 2013-12-31 13F WINMARK COM 974250102 149,002 -1,374 -0.91 13,801 24.51 0.0108
2013-11-13 2013-09-30 13F WINMARK COM 974250102 150,376 -1,055 -0.70 11,084 12.84 0.0096
2013-08-15 2013-06-30 13F WINMARK COM 974250102 151,431 151,431 9,823 0.0093
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.