Winmark Corporation
DE ˙ DB ˙ US9742501029
SecurityDE:GBZ / Winmark Corporation
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership56 shares
Latest Disclosed Value $ 22,677
Parallel Advisors, LLC ownership in GBZ / Winmark Corporation

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 56 shares of Winmark Corporation (DE:GBZ) valued at $22,677 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 56 shares of Winmark Corporation. This represents a change in shares of 0.00% 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)
2026-02-11 2025-12-31 13F WINMARK CORP COM Stock 974250102 56 0 0.00 23 -18.52 0.0004
2025-11-13 2025-09-30 13F WINMARK CORP COM Stock 974250102 56 -8 -12.50 28 12.50 0.0005
2025-07-08 2025-06-30 13F WINMARK CORP COM Stock 974250102 64 11 20.75 24 50.00 0.0005
2025-04-08 2025-03-31 13F WINMARK CORP COM Stock 974250102 53 -3 -5.36 17 -27.27 0.0004
2025-02-10 2024-12-31 13F WINMARK CORP COM Stock 974250102 56 0 0.00 22 4.76 0.0005
2024-11-13 2024-09-30 13F WINMARK CORP COM Stock 974250102 56 2 3.70 21 10.53 0.0005
2024-08-08 2024-06-30 13F WINMARK CORP COM Stock 974250102 54 1 1.89 19 0.00 0.0005
2024-05-06 2024-03-31 13F WINMARK CORP COM Stock 974250102 53 0 0.00 19 -13.64 0.0005
2024-02-12 2023-12-31 13F WINMARK CORP COM Stock 974250102 53 0 0.00 22 15.79 0.0007
2024-05-20 2023-09-30 13F/A-1 WINMARK CORP COM Stock 974250102 53 0 0.00 20 11.76 0.0007
2023-11-14 2023-09-30 13F WINMARK CORP COM Stock 974250102 53 0 20 0.0007
2024-05-20 2023-06-30 13F/A-1 WINMARK CORP COM Stock 974250102 53 0 0.00 18 6.25 0.0006
2023-08-04 2023-06-30 13F WINMARK CORP COM Stock 974250102 53 0 18 0.0006
2024-05-20 2023-03-31 13F/A-1 WINMARK CORP COM Stock 974250102 53 0 0.00 17 33.33 0.0006
2023-04-25 2023-03-31 13F WINMARK CORP COM Stock 974250102 53 0 17 0.0006
2023-02-06 2022-12-31 13F WINMARK CORP COM Stock 974250102 53 0 0.00 12 9.09 0.0005
2022-11-10 2022-09-30 13F WINMARK CORP COM Stock 974250102 53 11 26.19 11 37.50 0.0005
2022-08-01 2022-06-30 13F WINMARK CORP COM Stock 974250102 42 0 0.00 8 -11.11 0.0004
2022-04-28 2022-03-31 13F WINMARK CORP COM Stock 974250102 42 -8 -16.00 9 -25.00 0.0004
2022-01-20 2021-12-31 13F WINMARK CORP COM Stock 974250102 50 3 6.38 12 20.00 0.0004
2021-11-02 2021-09-30 13F/A-1 WINMARK CORP COM Stock 974250102 47 0 0.00 10 11.11 0.0004
2021-10-22 2021-09-30 13F WINMARK CORP COM Stock 974250102 47 0 9 0.0004
2021-08-06 2021-06-30 13F WINMARK CORP COM Stock 974250102 47 0 0.00 9 0.00 0.0004
2021-04-23 2021-03-31 13F WINMARK CORP COM Stock 974250102 47 -26 -35.62 9 -35.71 0.0004
2021-02-02 2020-12-31 13F WINMARK CORP COM Stock 974250102 73 20 37.74 14 55.56 0.0008
2020-10-27 2020-09-30 13F WINMARK CORP COM Stock 974250102 53 10 23.26 9 28.57 0.0006
2020-07-16 2020-06-30 13F WINMARK CORP COM Stock 974250102 43 34 377.78 7 600.00 0.0005
2020-04-27 2020-03-31 13F WINMARK CORP COM Stock 974250102 9 9 1 0.0001
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.