Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$1.11B
3,592,169 shares Covers every share class this company has on file.
Insiders on file
4
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$110.22M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
9.95%
insider-held value divided by market capitalisation

What WINMARK CORP reports

Revenue and net income below are for fiscal period FY2025, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
$86.06M
FY2025 annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
$41.65M
FY2025 profit for the period, from this company’s own annual XBRL filings to the SEC
Employees
87
Yahoo Finance
Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at WINMARK CORP

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against WINMARK CORP.
Insider Reported role Shares Value Last action
Officers 2
Anthony D Ishaug CFO 66,483 $21.15M M Option exercise or conversion Apr 30, 2026 position reported
Renae M Gaudette COO 18,860 $6.00M M Option exercise or conversion Apr 28, 2026 position reported
Officers who also sit on the board 1
Brett D. Heffes CEO 114,738 $36.51M S Open-market sale Aug 27, 2025 position reported
Holders of 10% or more 1
Ronald G. Olson Major Shareholder (10%+) 146,335 $46.56M S Open-market sale Nov 25, 2024 position reported

Recent insider transactions

Of the 87 rows we hold, 0 are open-market purchases and 53 open-market sales (S) — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for WINMARK CORP, newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Apr 30, 2026 Anthony D Ishaug M Option exercise or conversion 3,293 $98.25 $323.5K SEC filing ↗
Apr 28, 2026 Renae M Gaudette M Option exercise or conversion 2,500 $98.25 $245.6K SEC filing ↗
Nov 7, 2025 Anthony D Ishaug M Option exercise or conversion 2,490 $98.25 $244.6K SEC filing ↗
Nov 7, 2025 Anthony D Ishaug M Option exercise or conversion 510 $195.82 $99.9K SEC filing ↗
Oct 24, 2025 Renae M Gaudette S Open-market sale 100 $435.62 $43.6K SEC filing ↗
Oct 24, 2025 Renae M Gaudette S Open-market sale 1,100 $415.43 $457.0K SEC filing ↗
Oct 22, 2025 Renae M Gaudette M Option exercise or conversion 2,500 $90.99 $227.5K SEC filing ↗
Aug 27, 2025 Brett D. Heffes S Open-market sale 170 $451.76 $76.8K SEC filing ↗
Aug 27, 2025 Brett D. Heffes S Open-market sale 1,630 $452.72 $737.9K SEC filing ↗
Aug 27, 2025 Brett D. Heffes S Open-market sale 1,186 $454.03 $538.5K SEC filing ↗
Aug 27, 2025 Brett D. Heffes S Open-market sale 1,985 $454.95 $903.1K SEC filing ↗
Aug 27, 2025 Brett D. Heffes M Option exercise or conversion 1,390 $143.87 $200.0K SEC filing ↗
Aug 27, 2025 Brett D. Heffes M Option exercise or conversion 2,868 $164.84 $472.8K SEC filing ↗
Aug 27, 2025 Brett D. Heffes M Option exercise or conversion 2,103 $176.20 $370.5K SEC filing ↗
Aug 26, 2025 Brett D. Heffes M Option exercise or conversion 526 $164.84 $86.7K SEC filing ↗
Aug 26, 2025 Brett D. Heffes M Option exercise or conversion 1,915 $143.87 $275.5K SEC filing ↗
Aug 26, 2025 Brett D. Heffes S Open-market sale 641 $452.07 $289.8K SEC filing ↗
Aug 26, 2025 Brett D. Heffes S Open-market sale 800 $453.82 $363.1K SEC filing ↗
Aug 26, 2025 Brett D. Heffes S Open-market sale 400 $456.97 $182.8K SEC filing ↗
Aug 26, 2025 Brett D. Heffes S Open-market sale 600 $458.65 $275.2K SEC filing ↗
Aug 26, 2025 Brett D. Heffes M Option exercise or conversion 510 $195.82 $99.9K SEC filing ↗
Jul 17, 2025 Brett D. Heffes W Acquired by will or inheritance 53 $0.00 $0 SEC filing ↗
May 30, 2025 Anthony D Ishaug S Open-market sale 184 $420.60 $77.4K SEC filing ↗
May 30, 2025 Anthony D Ishaug S Open-market sale 457 $422.00 $192.9K SEC filing ↗
May 30, 2025 Anthony D Ishaug S Open-market sale 2,859 $427.07 $1.22M SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from WINMARK CORP’s own filings and multiplied by our closing price. Full method.

What that share count means

the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from WINMARK CORP’s own SEC filings multiplied by the closing price we hold for the same stock.

Logo: Winmark / Public domain , via Wikimedia Commons ↗ — used here to identify the company. Trademarks remain the property of their owner.