WINA insider buying and SEC filings, explained
Winmark Corp. · CIK 908315
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Retail-Miscellaneous Retail
- State of incorporation
- MN
- Fiscal year end
- Dec 26
- Former names
- GROW BIZ INTERNATIONAL INC
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$3.6M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Mar 4, 2026 | Sale | Jenele C. Grassle (Director) sold 3,900 shares at $475.80 ($1.9M). Holdings down 61% to 2,500 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 5, 2026 |
| Mar 3, 2026 | Sale | Percy C Tomlinson Jr (Director) sold 1,660 shares at $460.52 ($764K). Holdings down 67% to 800 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 3, 2026 |
| Nov 21, 2025 | Sale | Jenele C. Grassle (Director) sold 2,400 shares at $420.87 ($1.0M). Holdings down 49% to 2,500 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 21, 2025 |
33 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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