Winmark Corp (WINA) · Insider trading
What Winmark's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$4.13M
3 insiders, 0% under a plan
Net, 12 months
−$4.13M
bought less sold
Latest filing
2026-07-01
filings read to 2026-10-20
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Heffes Brett DDirector, CHAIR AND CEO | – | $6.93M | 17 | 2025-08-27 | 117,386 |
| Grassle Jenele CDirector | – | $3.55M | 3 | 2026-03-04 | 2,500 |
| Olson Ronald G10% owner | – | $2.67M | 4 | 2024-11-25 | 147,735 |
| Ishaug Anthony DCHIEF FINANCIAL OFFICER | – | $2.29M | 9 | 2025-05-30 | 60,483 |
| Barbetta Lawrence ADirector | – | $1.72M | 4 | 2025-09-17 | 1,285 |
| Gaudette Renae M.CHIEF OPERATING OFFICER | – | $1.07M | 3 | 2025-10-24 | 19,960 |
| Tomlinson Percy C JrDirector | – | $764,463 | 1 | 2026-03-03 | 800 |
| Sprenger Gina DecaroDirector | $102,692 | – | 1 | 2025-08-13 | 250 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-03-04 | Grassle Jenele CDirector | Sale | 3,900 | 475.80 | $1.86M | 2,500 | Form 4 |
| 2026-03-03 | Tomlinson Percy C JrDirector | Sale | 1,660 | 460.52 | $764,463 | 800 | Form 4 |
| 2025-11-21 | Grassle Jenele CDirector | Sale | 2,400 | 420.87 | $1.01M | 2,500 | Form 4 |
| 2025-10-24 | Gaudette Renae M.CHIEF OPERATING OFFICER | Sale | 100 | 435.62 | $43,562 | 19,960 | Form 4 |
| 2025-10-24 | Gaudette Renae M.CHIEF OPERATING OFFICER | Sale | 1,100 | 415.43 | $456,973 | 18,860 | Form 4 |
| 2025-09-17 | Barbetta Lawrence ADirector | Sale | 216 | 505.33 | $109,151 | 1,285 | Form 4 |
| 2025-09-17 | Barbetta Lawrence ADirector | Sale | 636 | 504.91 | $321,123 | 649 | Form 4 |
| 2025-08-27 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 1,985 | 454.95 | $903,076 | 117,386 | Form 4 |
| 2025-08-27 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 1,186 | 454.03 | $538,480 | 116,200 | Form 4 |
| 2025-08-27 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 1,630 | 452.72 | $737,934 | 114,570 | Form 4 |
| 2025-08-27 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 170 | 451.76 | $76,799 | 114,400 | Form 4 |
| 2025-08-26 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 600 | 458.65 | $275,190 | 114,851 | Form 4 |
| 2025-08-26 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 400 | 456.97 | $182,788 | 114,451 | Form 4 |
| 2025-08-26 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 800 | 453.82 | $363,056 | 113,651 | Form 4 |
| 2025-08-26 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 641 | 452.07 | $289,777 | 113,010 | Form 4 |
| 2025-08-13 | Sprenger Gina DecaroDirector | Buy | 250 | 410.77 | $102,692 | 250 | Form 4 |
| 2025-05-30 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Sale | 200 | 428.14 | $85,628 | 60,483 | Form 4 |
| 2025-05-30 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Sale | 2,859 | 427.07 | $1.22M | 57,624 | Form 4 |
| 2025-05-30 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Sale | 300 | 423.13 | $126,939 | 57,324 | Form 4 |
| 2025-05-30 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Sale | 457 | 422.00 | $192,854 | 56,867 | Form 4 |
| 2025-05-30 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Sale | 184 | 420.60 | $77,390 | 56,683 | Form 4 |
| 2025-05-16 | Grassle Jenele CDirector | Sale | 1,600 | 428.23 | $685,168 | 2,500 | Form 4 |
| 2025-05-06 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Sale | 169 | 368.14 | $62,216 | 58,801 | Form 4 |
| 2025-05-06 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Sale | 1,034 | 367.03 | $379,509 | 57,767 | Form 4 |
| 2025-05-06 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Sale | 89 | 365.61 | $32,539 | 57,678 | Form 4 |
| 2025-05-06 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Sale | 308 | 365.09 | $112,448 | 57,370 | Form 4 |
| 2024-11-25 | Barbetta Lawrence ADirector | Sale | 1,986 | 425.21 | $844,467 | 2,536 | Form 4 |
| 2024-11-25 | Barbetta Lawrence ADirector | Sale | 1,035 | 426.02 | $440,931 | 1,501 | Form 4 |
| 2024-11-25 | Olson Ronald G10% owner | Sale | 2,259 | 424.12 | $958,087 | 147,735 | Form 4 |
| 2024-11-25 | Olson Ronald G10% owner | Sale | 1,400 | 424.35 | $594,090 | 146,335 | Form 4 |
| 2024-11-22 | Olson Ronald G10% owner | Sale | 1,500 | 407.95 | $611,925 | 151,235 | Form 4 |
| 2024-11-22 | Olson Ronald G10% owner | Sale | 1,241 | 407.40 | $505,583 | 149,994 | Form 4 |
| 2024-11-06 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 502 | 405.00 | $203,310 | 115,498 | Form 4 |
| 2024-11-06 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 1,100 | 402.76 | $443,036 | 114,398 | Form 4 |
| 2024-11-06 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 1,598 | 401.94 | $642,300 | 112,800 | Form 4 |
| 2024-11-06 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 300 | 400.50 | $120,150 | 112,500 | Form 4 |
| 2024-11-05 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 168 | 395.49 | $66,442 | 116,829 | Form 4 |
| 2024-11-05 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 1,150 | 395.00 | $454,250 | 115,679 | Form 4 |
| 2024-11-05 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 166 | 393.64 | $65,344 | 115,513 | Form 4 |
| 2024-11-05 | Heffes Brett DDirector, CHAIR AND CEO | Sale | 2,113 | 392.92 | $830,240 | 113,400 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
36 × option exercise1 × inherited
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-07-01 | Tomlinson Percy C JrDirector | Option exercise M | +3,500 | 242.58 | 4,300 | Form 4 |
| 2026-07-01 | Tomlinson Percy C JrDirector | Option exercise M | +200 | 197.80 | 4,500 | Form 4 |
| 2026-04-30 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Option exercise M | +3,293 | 98.25 | 69,776 | Form 4 |
| 2026-04-28 | Gaudette Renae M.CHIEF OPERATING OFFICER | Option exercise M | +2,500 | 98.25 | 21,360 | Form 4 |
| 2026-02-26 | Tomlinson Percy C JrDirector | Option exercise M | +1,600 | 242.58 | 2,400 | Form 4 |
| 2026-02-26 | Tomlinson Percy C JrDirector | Option exercise M | +60 | 197.80 | 2,460 | Form 4 |
| 2026-02-25 | Grassle Jenele CDirector | Option exercise M | +800 | 134.25 | 3,300 | Form 4 |
| 2026-02-25 | Grassle Jenele CDirector | Option exercise M | +800 | 143.20 | 4,100 | Form 4 |
| 2026-02-25 | Grassle Jenele CDirector | Option exercise M | +800 | 156.00 | 4,900 | Form 4 |
| 2026-02-25 | Grassle Jenele CDirector | Option exercise M | +750 | 164.84 | 5,650 | Form 4 |
| 2026-02-25 | Grassle Jenele CDirector | Option exercise M | +750 | 176.20 | 6,400 | Form 4 |
| 2025-11-19 | Grassle Jenele CDirector | Option exercise M | +800 | 98.25 | 3,300 | Form 4 |
| 2025-11-19 | Grassle Jenele CDirector | Option exercise M | +800 | 125.50 | 4,100 | Form 4 |
| 2025-11-19 | Grassle Jenele CDirector | Option exercise M | +800 | 122.50 | 4,900 | Form 4 |
| 2025-11-07 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Option exercise M | +2,490 | 98.25 | 65,973 | Form 4 |
| 2025-11-07 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Option exercise M | +510 | 195.82 | 66,483 | Form 4 |
| 2025-11-04 | Tomlinson Percy C JrDirector | Option exercise M | +600 | 197.80 | 800 | Form 4 |
| 2025-10-22 | Gaudette Renae M.CHIEF OPERATING OFFICER | Option exercise M | +2,500 | 90.99 | 20,060 | Form 4 |
| 2025-08-27 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +2,103 | 176.20 | 115,113 | Form 4 |
| 2025-08-27 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +2,868 | 164.84 | 117,981 | Form 4 |
| 2025-08-27 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +1,390 | 143.87 | 119,371 | Form 4 |
| 2025-08-26 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +1,915 | 143.87 | 114,415 | Form 4 |
| 2025-08-26 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +526 | 164.84 | 114,941 | Form 4 |
| 2025-08-26 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +510 | 195.82 | 115,451 | Form 4 |
| 2025-07-17 | Heffes Brett DDirector, CHAIR AND CEO | Inherited W | +53 | – | 338 | Form 4 |
| 2025-05-30 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Option exercise M | +6,800 | 90.99 | 63,483 | Form 4 |
| 2025-05-12 | Grassle Jenele CDirector | Option exercise M | +800 | 91.93 | 3,300 | Form 4 |
| 2025-05-12 | Grassle Jenele CDirector | Option exercise M | +800 | 90.99 | 4,100 | Form 4 |
| 2025-05-06 | Ishaug Anthony DCHIEF FINANCIAL OFFICER | Option exercise M | +3,313 | 91.93 | 60,683 | Form 4 |
| 2025-04-28 | Gaudette Renae M.CHIEF OPERATING OFFICER | Option exercise M | +2,500 | 91.93 | 17,560 | Form 4 |
| 2024-11-06 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +500 | 143.20 | 113,000 | Form 4 |
| 2024-11-06 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +3,000 | 156.00 | 116,000 | Form 4 |
| 2024-11-05 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +3,497 | 143.20 | 114,997 | Form 4 |
| 2024-11-05 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +2,000 | 156.00 | 116,997 | Form 4 |
| 2024-11-05 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +695 | 143.87 | 112,195 | Form 4 |
| 2024-11-05 | Heffes Brett DDirector, CHAIR AND CEO | Option exercise M | +305 | 143.20 | 112,500 | Form 4 |
| 2024-10-24 | Gaudette Renae M.CHIEF OPERATING OFFICER | Option exercise M | +3,000 | 80.32 | 16,560 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.