InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
0
T+90 hit rate
22%
T+90 mean return
-5.1%
Across 9 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the complete record of transactions filed by HEFFES BRETT D, Chief Executive Officer. Officer active across 1 company, notably WINMARK CORP. Cumulatively, 11 filings have been published. Activity tracked since 21 October 2021. The latest transaction was filed on 26 August 2025 (Levée d'options). Regulator: SEC (Form 4). The full history is free.
Declarations11 total
1,915 shares@ US$143.870.019% mcap17.5% of flowCommon StockSEC:0001415889-25-023218:0
1,915 shares@ US$143.8717.5% of flowCommon StockSEC:0001415889-25-023218
3,497 shares@ US$143.2018.4% of flowCommon StockSEC:0001415889-24-026346:0
3,290 shares@ US$122.5015.1% of flowCommon StockSEC:0001415889-24-011296:0
285 shares0Common StockSEC:0001415889-24-001730:0
1,527 shares@ US$98.255.4% of flowCommon StockSEC:0001415889-23-006962:0
1,930 shares@ US$91.937.2% of flowCommon StockSEC:0001415889-22-011059:0
1,131 shares@ US$82.720.0064% mcap5.9% of flowCommon StockSEC:0001179110-21-009708:0
1,131 shares@ US$82.720.0064% mcap11.8% of flowCommon StockSEC:0001179110-21-009708
5,211 shares@ US$80.320.029% mcap53.2% of flowCommon StockSEC:0001179110-21-009612
5,211 shares@ US$80.320.029% mcap26.6% of flowCommon StockSEC:0001179110-21-009612:0
11 of 11 declarations
About HEFFES BRETT D
Brett D. Heffes is the Chair and CEO of Winmark Corp. He leads the company by overseeing its operations and defining its growth strategy. His role is essential in ensuring the company's profitability and sustainability. Brett leverages his experience to guide strategic decisions and strengthen Winmark's market position.
