Winmark Corporation
DE ˙ DB ˙ US9742501029
SecurityDE:GBZ / Winmark Corporation
InstitutionBlackRock, Inc.
Latest Disclosed Ownership432,141 shares
Ownership 12.10%
BlackRock, Inc. ownership in GBZ / Winmark Corporation

2026-02-06 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 432,141 shares of Winmark Corporation (DE:GBZ). This represents 12.1 percent ownership of the company. In their previous filing dated 2025-04-17 , BlackRock, Inc. had reported owning 217,125 shares, indicating an increase of 99.03 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2026-02-06 2026-02-06 13G/A 217,125 432,141 99.03 12.10 98.36
2025-04-17 2025-04-17 13G/A 263,513 217,125 -17.60 6.10 -19.74
2024-01-26 2024-01-26 13G/A 217,245 263,513 21.30 7.60 20.63
2023-02-01 2023-02-01 13G/A 232,672 217,245 -6.63 6.30 -1.56
2022-02-01 2022-02-01 13G/A 210,867 232,672 10.34 6.40 14.29
2021-02-02 2021-02-02 13G 210,867 5.60

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-13 2026-03-31 13F WINMARK COM 974250102 466,377 201,790 76.27 199,399 86.11 0.0003
2026-02-12 2025-12-31 13F WINMARK COM 974250102 264,587 5,931 2.29 107,142 -16.78 0.0018
2025-11-12 2025-09-30 13F WINMARK COM 974250102 258,656 2,629 1.03 128,751 33.18 0.0023
2025-08-12 2025-06-30 13F WINMARK COM 974250102 256,027 -506 -0.20 96,678 18.56 0.0018
2025-05-02 2025-03-31 13F WINMARK COM 974250102 256,533 747 0.29 81,544 -18.89 0.0017
2025-02-07 2024-12-31 13F WINMARK COM 974250102 255,786 -2,156 -0.84 100,542 1.79 0.0020
2024-11-13 2024-09-30 13F WINMARK COM 974250102 257,942 -3,500 -1.34 98,774 7.14 0.0021
2024-08-13 2024-06-30 13F WINMARK COM 974250102 261,442 -2,241 -0.85 92,192 -3.34 0.0021
2024-05-10 2024-03-31 13F WINMARK COM 974250102 263,683 170 0.06 95,374 -13.32 0.0022
2024-02-13 2023-12-31 13F WINMARK COM 974250102 263,513 28,097 11.94 110,030 25.26 0.0028
2023-11-13 2023-09-30 13F WINMARK COM 974250102 235,416 3,923 1.69 87,841 14.13 0.0025
2023-08-11 2023-06-30 13F WINMARK COM 974250102 231,493 15,844 7.35 76,964 11.38 0.0021
2023-05-12 2023-03-31 13F WINMARK COM 974250102 215,649 -1,596 -0.73 69,100 34.88 0.0020
2023-02-13 2022-12-31 13F WINMARK COM 974250102 217,245 19,048 9.61 51,233 19.48 0.0016
2022-11-14 2022-09-30 13F WINMARK COM 974250102 198,197 -2,828 -1.41 42,878 9.07 0.0015
2022-08-12 2022-06-30 13F WINMARK COM 974250102 201,025 -25,771 -11.36 39,314 -21.21 0.0013
2022-05-12 2022-03-31 13F WINMARK COM 974250102 226,796 -5,876 -2.53 49,896 -13.63 0.0013
2022-02-10 2021-12-31 13F WINMARK COM 974250102 232,672 -358 -0.15 57,770 15.29 0.0015
2021-11-09 2021-09-30 13F WINMARK COM 974250102 233,030 -1,931 -0.82 50,108 11.03 0.0014
2021-08-11 2021-06-30 13F WINMARK COM 974250102 234,961 9,697 4.30 45,131 7.47 0.0013
2021-05-07 2021-03-31 13F WINMARK COM 974250102 225,264 14,397 6.83 41,995 7.19 0.0012
2021-02-05 2020-12-31 13F WINMARK COM 974250102 210,867 4,635 2.25 39,177 10.33 0.0012
2020-11-06 2020-09-30 13F WINMARK COM 974250102 206,232 9,925 5.06 35,509 5.63 0.0013
2020-08-14 2020-06-30 13F WINMARK COM 974250102 196,307 27,451 16.26 33,616 56.24 0.0013
2020-05-01 2020-03-31 13F WINMARK COM 974250102 168,856 686 0.41 21,516 -35.48 0.0011
2020-02-13 2019-12-31 13F WINMARK COM 974250102 168,170 14,941 9.75 33,348 23.38 0.0013
2019-11-08 2019-09-30 13F WINMARK COM 974250102 153,229 6,737 4.60 27,029 6.56 0.0011
2019-08-22 2019-06-30 13F/A-1 WINMARK COM 974250102 146,492 11,032 8.14 25,364 -0.71 0.0011
2019-08-13 2019-06-30 13F WINMARK COM 974250102 146,492 11,032 25,364
2019-05-09 2019-03-31 13F WINMARK COM 974250102 135,460 1,515 1.13 25,546 19.95 0.0011
2019-02-08 2018-12-31 13F WINMARK COM 974250102 133,945 -839 -0.62 21,297 -4.81 0.0011
2018-11-09 2018-09-30 13F WINMARK COM 974250102 134,784 3,322 2.53 22,373 14.64 0.0010
2018-08-09 2018-06-30 13F WINMARK COM 974250102 131,462 19,820 17.75 19,516 33.64 0.0009
2018-05-09 2018-03-31 13F WINMARK COM 974250102 111,642 -676 -0.60 14,603 0.47 0.0007
2018-02-09 2017-12-31 13F WINMARK COM 974250102 112,318 -3,943 -3.39 14,534 -5.12 0.0007
2017-11-14 2017-09-30 13F WINMARK COM 974250102 116,261 4,570 4.09 15,318 6.35 0.0008
2017-08-10 2017-06-30 13F WINMARK COM 974250102 111,691 3,268 3.01 14,403 17.58 0.0008
2017-05-12 2017-03-31 13F WINMARK COM 974250102 108,423 108,254 64,055.62 12,250 55,581.82 0.0007
2017-02-10 2016-12-31 13F WINMARK COM 974250102 169 -46 -21.40 22 -4.35 0.0000
2016-11-08 2016-09-30 13F WINMARK COM 974250102 215 34 18.78 23 27.78 0.0000
2016-08-10 2016-06-30 13F WINMARK COM 974250102 181 69 61.61 18 63.64 0.0000
2016-05-10 2016-03-31 13F WINMARK COM 974250102 112 75 202.70 11 266.67 0.0000
2016-02-11 2015-12-31 13F WINMARK COM 974250102 37 0 0.00 3 -25.00 0.0000
2015-11-13 2015-09-30 13F WINMARK COM 974250102 37 0 0.00 4 0.00 0.0000
2015-08-07 2015-06-30 13F WINMARK COM 974250102 37 0 0.00 4 33.33 0.0000
2015-05-13 2015-03-31 13F WINMARK COM 974250102 37 0 0.00 3 0.00 0.0000
2015-02-09 2014-12-31 13F WINMARK COM 974250102 37 0 0.00 3 0.00 0.0000
2014-10-29 2014-09-30 13F WINMARK COM 974250102 37 0 0.00 3 0.00 0.0000
2014-08-06 2014-06-30 13F WINMARK COM 974250102 37 0 0.00 3 0.00 0.0000
2014-05-02 2014-03-31 13F WINMARK COM 974250102 37 0 0.00 3 0.00 0.0000
2014-02-12 2013-12-31 13F WINMARK COM 974250102 37 0 0.00 3 0.00 0.0000
2013-11-12 2013-09-30 13F WINMARK COM 974250102 37 0 0.00 3 50.00 0.0000
2013-08-13 2013-06-30 13F WINMARK COM 974250102 37 37 2 0.0000
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.