Skip to content
sellNotable cluster of 2

Jenele C Grassle sold $1.9M of WINA

director at WINMARK CORP. 3,900 shares at an average of $475.80, traded Mar 4, 2026, filed Mar 5, 2026.

Warning score
68
Value
$1.9M
3,900 shares
Holdings after
2,500
-61% from before
From 52-week low
+62%
low $292.76, close $474.84
From 52-week high
-5%
high $500.91, as of Mar 4, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $1.9M at market
    +25
  • Share of holdings sold
    Sold 61% of holdings
    +20
  • Cluster
    2 insiders selling within 14 days
    +8

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

WINAOct 9, 2026 · close 291.86
Since filing Mar 5, 2026: -35.1%SPY +15.2% · excess -50.3%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001218668-26-000004, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 4, 2026SOpen-market sale
Common Stock
-3,900$475.80$1.9M2,500Mar 5, 2026

Related signals

Other insiders at WINMARK CORP and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
65Notable
WINAsell 2
WINMARK CORP
Percy C Tomlinson Jr
director
$764k
1,660 shares
-67%
35Weak
WINAsell
WINMARK CORP
Jenele C Grassle
director
$1.0M
2,400 shares
-49%
23Weak
WINAsell
WINMARK CORP
Renae M. Gaudette
CHIEF OPERATING OFFICER
$501k
1,200 shares
-6%
52Moderate
WINAsell
WINMARK CORP
Lawrence A Barbetta
director
$430k
852 shares
-57%
35Weak
WINAsell
WINMARK CORP
Brett D Heffes
CHAIR AND CEO
$3.4M
7,412 shares
-6%
33Weak
WINAbuy
WINMARK CORP
Gina Decaro Sprenger
director
$103k
250 shares
-
40Moderate
WINAsell 2
WINMARK CORP
Anthony D Ishaug
CHIEF FINANCIAL OFFICER
$1.7M
4,000 shares
-7%
54Moderate
WINAsell 2
WINMARK CORP
Jenele C Grassle
director
$685k
1,600 shares
-39%
34Weak
WINAsell 2
WINMARK CORP
Anthony D Ishaug
CHIEF FINANCIAL OFFICER
$587k
1,600 shares
-3%
68Notable
WINAsell 2
WINMARK CORP
Lawrence A Barbetta
director
$1.3M
3,021 shares
-67%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Jenele C Grassle sold $1.9M of WINA | InsiderTell