Winmark Corporation
DE ˙ DB ˙ US9742501029
SecurityDE:GBZ / Winmark Corporation
InstitutionTwo Sigma Advisers, Lp
Latest Disclosed Ownership3,080 shares
Latest Disclosed Value $ 1,247,215
Two Sigma Advisers, Lp reports 18.46% increase in ownership of GBZ / Winmark Corporation

On February 17, 2026 - Two Sigma Advisers, Lp filed a 13F-HR form disclosing ownership of 3,080 shares of Winmark Corporation (DE:GBZ) valued at $1,247,215 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 2,600 shares of Winmark Corporation. This represents a change in shares of 18.46% 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)
2026-02-17 2025-12-31 13F WINMARK COM 974250102 3,080 480 18.46 1,247 -3.63 0.0024
2025-11-14 2025-09-30 13F WINMARK COM 974250102 2,600 -100 -3.70 1,294 26.99 0.0026
2025-08-14 2025-06-30 13F WINMARK COM 974250102 2,700 2,700 1,020 0.0021
2025-02-14 2024-12-31 13F WINMARK COM 974250102 0 -1,900 -100.00 0 -100.00
2024-11-14 2024-09-30 13F WINMARK COM 974250102 1,900 -2,900 -60.42 728 -57.03 0.0017
2024-08-14 2024-06-30 13F WINMARK COM 974250102 4,800 300 6.67 1,693 4.00 0.0038
2024-05-15 2024-03-31 13F WINMARK COM 974250102 4,500 -1,000 -18.18 1,628 -29.14 0.0038
2024-02-14 2023-12-31 13F WINMARK COM 974250102 5,500 -3,100 -36.05 2,297 -28.43 0.0054
2023-11-14 2023-09-30 13F WINMARK COM 974250102 8,600 1,900 28.36 3,209 44.05 0.0082
2023-08-14 2023-06-30 13F WINMARK COM 974250102 6,700 1,100 19.64 2,228 24.14 0.0057
2023-05-15 2023-03-31 13F WINMARK COM 974250102 5,600 -2,200 -28.21 1,794 -2.45 0.0046
2023-02-14 2022-12-31 13F WINMARK COM 974250102 7,800 3,700 90.24 1,839 107.33 0.0051
2022-11-14 2022-09-30 13F WINMARK COM 974250102 4,100 100 2.50 887 13.43 0.0026
2022-08-15 2022-06-30 13F WINMARK COM 974250102 4,000 800 25.00 782 11.08 0.0022
2022-05-16 2022-03-31 13F WINMARK COM 974250102 3,200 -900 -21.95 704 -30.84 0.0019
2022-02-14 2021-12-31 13F WINMARK COM 974250102 4,100 500 13.89 1,018 31.52 0.0025
2021-11-15 2021-09-30 13F WINMARK COM 974250102 3,600 -3,200 -47.06 774 -40.74 0.0020
2021-08-16 2021-06-30 13F WINMARK COM 974250102 6,800 -6,400 -48.48 1,306 -46.93 0.0034
2021-05-17 2021-03-31 13F WINMARK COM 974250102 13,200 7,100 116.39 2,461 117.21 0.0068
2021-02-16 2020-12-31 13F WINMARK COM 974250102 6,100 -1,600 -20.78 1,133 -14.56 0.0030
2020-11-16 2020-09-30 13F WINMARK COM 974250102 7,700 -900 -10.47 1,326 -9.98 0.0038
2020-09-15 2020-06-30 13F/A-1 WINMARK COM 974250102 8,600 300 3.61 1,473 39.22 0.0043
2020-08-14 2020-06-30 13F WINMARK COM 974250102 8,600 300 1,473 4,256.4808
2020-05-15 2020-03-31 13F WINMARK COM 974250102 8,300 -2,700 -24.55 1,058 -51.49 0.0040
2020-02-14 2019-12-31 13F WINMARK COM 974250102 11,000 11,000 2,181 0.0051
2019-02-14 2018-12-31 13F WINMARK COM 974250102 0 -1,700 -100.00 0 -100.00
2018-11-14 2018-09-30 13F WINMARK COM 974250102 1,700 0 0.00 282 11.90 0.0007
2018-08-14 2018-06-30 13F WINMARK COM 974250102 1,700 -100 -5.56 252 7.23 0.0007
2018-05-15 2018-03-31 13F WINMARK COM 974250102 1,800 -600 -25.00 235 -24.44 0.0006
2018-02-14 2017-12-31 13F WINMARK COM 974250102 2,400 -300 -11.11 311 -12.64 0.0008
2017-11-14 2017-09-30 13F WINMARK COM 974250102 2,700 100 3.85 356 6.27 0.0010
2017-08-14 2017-06-30 13F WINMARK COM 974250102 2,600 2,600 335 0.0011
2016-05-16 2016-03-31 13F WINMARK COM 974250102 0 0 0 0.0000
2016-02-16 2015-12-31 13F WINMARK COM 974250102 0 -2,100 -100.00 0 -100.00
2015-11-16 2015-09-30 13F WINMARK COM 974250102 2,100 0 0.00 216 4.35 0.0014
2016-02-09 2015-06-30 13F/A-1 WINMARK COM 974250102 2,100 2,100 -55.29 207 -40.00 0.0016
2015-08-14 2015-06-30 13F WINMARK COM 974250102 2,100 207
2015-02-17 2014-12-31 13F WINMARK COM 974250102 0 -4,697 -100.00 0 -100.00
2016-02-09 2014-09-30 13F/A-1 WINMARK COM 974250102 4,697 -6,100 -56.50 345 -54.12 0.0027
2014-11-14 2014-09-30 13F WINMARK COM 974250102 4,697 345
2016-02-09 2014-06-30 13F/A-1 WINMARK COM 974250102 10,797 5,800 116.07 752 98.94 0.0061
2014-08-14 2014-06-30 13F WINMARK COM 974250102 10,797 752
2014-05-15 2014-03-31 13F WINMARK COM 974250102 4,997 -500 -9.10 378 -25.74 0.0034
2014-02-14 2013-12-31 13F WINMARK COM 974250102 5,497 100 1.85 509 27.89 0.0049
2013-11-14 2013-09-30 13F WINMARK COM 974250102 5,397 -200 -3.57 398 9.64 0.0047
2013-08-14 2013-06-30 13F WINMARK COM 974250102 5,597 5,597 363 0.0052
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.