Brett D. Heffes
CHAIRMAN AND CEO at Winmark Corporation
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 3 years
- Director since
- 2023
3 years of board service in total across 1 board, counting each seat separately. Longest: Winmark Corporation, 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Winmark Corporation April 22, 202698.1%
-
Winmark Corporation April 23, 202598.4%
-
Winmark Corporation April 24, 202497.2%
-
Winmark Corporation April 26, 202396.0%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 27, 2025 | Winmark Corporation | Option exercise | +2,103 | $176.20 | $370,549 |
| Aug 27, 2025 | Winmark Corporation | Option exercise | +2,868 | $164.84 | $472,761 |
| Aug 27, 2025 | Winmark Corporation | Option exercise | +1,390 | $143.87 | $199,979 |
| Aug 27, 2025 | Winmark Corporation | Open-market sale | −1,985 | $454.95 | $903,076 |
| Aug 27, 2025 | Winmark Corporation | Open-market sale | −1,186 | $454.03 | $538,480 |
| Aug 27, 2025 | Winmark Corporation | Open-market sale | −1,630 | $452.72 | $737,934 |
| Aug 27, 2025 | Winmark Corporation | Open-market sale | −170 | $451.76 | $76,799 |
| Aug 26, 2025 | Winmark Corporation | Option exercise | +1,915 | $143.87 | $275,511 |
| Aug 26, 2025 | Winmark Corporation | Option exercise | +526 | $164.84 | $86,706 |
| Aug 26, 2025 | Winmark Corporation | Option exercise | +510 | $195.82 | $99,868 |
| Aug 26, 2025 | Winmark Corporation | Open-market sale | −600 | $458.65 | $275,190 |
| Aug 26, 2025 | Winmark Corporation | Open-market sale | −400 | $456.97 | $182,788 |
| Aug 26, 2025 | Winmark Corporation | Open-market sale | −800 | $453.82 | $363,056 |
| Aug 26, 2025 | Winmark Corporation | Open-market sale | −641 | $452.07 | $289,777 |
| Jul 17, 2025 | Winmark Corporation | Inheritance | +53 | — | — |
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