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Winmark stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions−34.3% to $265.23
Winmark (WINA) stock fell 34% over the last 252 sessions, to $265.23. On the way it reported 0 quarters, its insiders filed 4 open-market trades and 2 Form 144 notices of planned sales, and the company filed 1 material 8-K. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Oct 22, 2026 | Form 144 | Form 144: Renae M. Gaudette plans to sell $526K | +1.8% (+3.0% vs SPY) | +0.8% (+0.9% vs SPY) | — |
| Oct 22, 2026 | Insider sale | Gaudette Renae M. sold $120K | +1.8% (+3.0% vs SPY) | +0.8% (+0.9% vs SPY) | — |
| Jul 14, 2026 | Form 144 | Form 144: Jenele Grassle plans to sell $525K | −2.6% (−3.0% vs SPY) | −1.7% (−0.7% vs SPY) | −4.5% (−7.3% vs SPY) |
| May 6, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.1% (−1.5% vs SPY) | −3.2% (−5.1% vs SPY) | +2.5% (−2.0% vs SPY) |
| Mar 4, 2026 | Insider sale | Grassle Jenele C sold $1.9M | −0.7% (−1.4% vs SPY) | −8.3% (−7.8% vs SPY) | −10.4% (−6.9% vs SPY) |
| Mar 3, 2026 | Insider sale | Tomlinson Percy C Jr sold $764K | +1.7% (+2.6% vs SPY) | −7.1% (−5.9% vs SPY) | −10.0% (−4.8% vs SPY) |
| Nov 21, 2025 | Insider sale | Grassle Jenele C sold $1.0M | +2.7% (+1.7% vs SPY) | +1.1% (−3.5% vs SPY) | +0.3% (−4.8% vs SPY) |
Insiders’ record here
In the year on the chart, Winmark's insiders reported 0 open-market buys ($0) and 4 sales ($3.8M). Of the 3 old enough to score, 2 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale −31.4%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Winmark: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.