Company · Ownership research

WINMARK CORP WINA

CIK 0000908315

Form 4 transactions dated Sep 1, 2023 to Sep 25, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 48 rows; the complete set is available through the API.

Insider filings on file run through 2026-07-01.

Insider purchases & sales

Purchased: $102.69K
Sold: $28.15M

Sep 1, 2023 – Jul 1, 2026
Available records · partial months are marked ·

20259 of 9 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2025-11-21	GRASSLE JENELE C Director	Sale	$1.01M 2,400 shares sold	48.98% sold Direct holding	▾
2025-10-24	Gaudette Renae M. CHIEF OPERATING OFFICER	Sale	$500.54K 1,200 shares sold	5.98% sold Direct holding	▾
2025-09-17	Barbetta Lawrence A Director	Sale	$430.27K 852 shares sold	56.76% sold Direct holding	▾
2025-08-27	HEFFES BRETT D CHAIR AND CEO · Director	Sale	$2.26M 4,971 shares sold	4.16% sold Direct holding	▾
2025-08-26	HEFFES BRETT D CHAIR AND CEO · Director	Sale	$1.11M 2,441 shares sold	2.11% sold Direct holding	▾
2025-08-13	SPRENGER GINA DECARO Director	Purchase	$102.69K 250 shares bought	New holding Direct holding	▾
2025-05-30	Ishaug Anthony D CHIEF FINANCIAL OFFICER	Sale	$1.70M 4,000 shares sold	6.59% sold Direct holding	▾
2025-05-16	GRASSLE JENELE C Director	Sale	$685.17K 1,600 shares sold	39.02% sold Direct holding	▾
2025-05-06	Ishaug Anthony D CHIEF FINANCIAL OFFICER	Sale	$586.71K 1,600 shares sold	2.71% sold Direct holding	▾

Showing 9 / 9 record groups in 2025. The complete set is available through the API.

WINMARK CORP · WINA

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 9 of 9 purchase / sale groups and 30 of 48 other groups; the totals and the monthly series cover the whole window.

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list_insider_transactions
{"ticker":"WINA","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.