NASDAQ:WINA

Winmark Stock Insider Trading

Consumer Cyclical > Specialty Retail

Buy WINA

*Your capital is at risk

$375.70

+1.28 (+0.342%)

At Close: Jun 03, 2026

Winmark Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -60.44. In total, the insiders bought 107.23K and sold 25.69K WINA shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-60.44
● Buy	107.23K shares
● Sell	25.69K shares
75% Buy Activity Negligible or No Correlation
Buy Signal Low Confidence Jun 01, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory negative Insider Power Score of -60.44. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Feb 25, 2026 Buy	Non-Employee Stock Option (right to buy) M-Exempt	Grassle Jenele C Director	Director	750 Value: $123.6K
Feb 25, 2026 Buy	Common Stock M-Exempt	Grassle Jenele C Director	Director	800 Value: $107.4K
Feb 25, 2026 Buy	Common Stock M-Exempt	Grassle Jenele C Director	Director	800 Value: $124.8K
Feb 25, 2026 Buy	Common Stock M-Exempt	Grassle Jenele C Director	Director	750 Value: $132.2K
Feb 25, 2026 Buy	Common Stock M-Exempt	Grassle Jenele C Director	Director	750 Value: $123.6K
Feb 25, 2026 Buy	Common Stock M-Exempt	Grassle Jenele C Director	Director	800 Value: $114.6K
Feb 25, 2026 Buy	Non-Employee Stock Option (right to buy) M-Exempt	Grassle Jenele C Director	Director	800 Value: $107.4K
Feb 25, 2026 Buy	Non-Employee Stock Option (right to buy) M-Exempt	Grassle Jenele C Director	Director	800 Value: $124.8K
Dec 15, 2025 Buy	Employee Stock Option (right to buy) A-Award	Ishaug Anthony D Chief Financial Officer	C-Suite Officer	1 712 Value: $761.1K
Dec 15, 2025 Buy	Employee Stock Option (right to buy) A-Award	Gaudette Renae M. Chief Operating Officer	C-Suite Officer	1 316 Value: $585.0K
Dec 15, 2025 Buy	Employee Stock Option (right to buy) A-Award	Hake Lisa Schurke Chief Marketing Officer	Officer	1 216 Value: $540.6K
Dec 15, 2025 Buy	Non-Employee Stock Option (right to buy) A-Award	Credendino Keith Director	Director	256 Value: $113.8K
Dec 15, 2025 Buy	Non-Employee Director Stock Option (right to buy) A-Award	Barbetta Lawrence A Director	Director	256 Value: $113.8K
Dec 15, 2025 Buy	Non-Employee Stock Option (right to buy) A-Award	Becker Amy C Director	Director	256 Value: $113.8K
Dec 15, 2025 Buy	Non-Employee Stock Option (right to buy) A-Award	Tomlinson Percy C Jr Director	Director	256 Value: $113.8K
Dec 15, 2025 Buy	Non-Employee Stock Option (right to buy) A-Award	Smith Philip Irving Director	Director	256 Value: $113.8K
Dec 15, 2025 Buy	Non-Employee Stock Option (right to buy) A-Award	Grassle Jenele C Director	Director	256 Value: $113.8K
Dec 15, 2025 Buy	Non-Employee Stock Option (right to buy) A-Award	Sprenger Gina Decaro Director	Director	256 Value: $113.8K
Dec 15, 2025 Buy	Employee Stock Option (right to buy) A-Award	Heffes Brett D Chair And CEO	CEO / President	2 712 Value: $1.21M
Nov 21, 2025 Sell	Common Stock S-Sale	Grassle Jenele C Director	Director	2 400 Value: $1.01M
Nov 19, 2025 Buy	Common Stock M-Exempt	Grassle Jenele C Director	Director	800 Value: $78.6K
Nov 19, 2025 Buy	Common Stock M-Exempt	Grassle Jenele C Director	Director	800 Value: $100.4K
Nov 19, 2025 Buy	Common Stock M-Exempt	Grassle Jenele C Director	Director	800 Value: $98.0K
Nov 19, 2025 Buy	Non-Employee Stock Option (right to buy) M-Exempt	Grassle Jenele C Director	Director	800 Value: $78.6K
Nov 19, 2025 Buy	Non-Employee Stock Option (right to buy) M-Exempt	Grassle Jenele C Director	Director	800 Value: $100.4K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT WINMARK CORPORATION

Winmark Corporation, together with its subsidiaries, operates as a franchisor of retail store concepts that buy, sell, trade, and consign used merchandise primarily in the United States and Canada. The company operates through two segments, Franchising and Leasing. Its franchises retail stores operate under the Plato's Closet, Once Upon A Child, Play It Again Sports, Style Encore, and Music Go Round brand names. The company's Plato's Closet brand...

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