Winmark Corp (WINA) Insider Ownership

Historic Insider Ownership Trends

WINA's three largest insider shareholders as of April 22, 2026 are Ronald G Olson (TenPercentOwner, 250.57K shares), Ronald G Olson (TenPercentOwner, 146.34K shares), Brett D Heffes (Chair And Ceo, 114.40K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Ronald G Olson - 0 250,573 22 May, 2023
Ronald G Olson - 146,335 0 26 Nov, 2024
Brett D Heffes Chair And Ceo 114,400 0 28 Aug, 2025
Anthony D Ishaug Chief Financial Officer 66,483 0 07 Nov, 2025
Renae M. Gaudette Chief Operating Officer 18,860 0 24 Oct, 2025
Leah A Goff Vp Of Human Resources 11,575 0 14 Mar, 2022
Paul C Reyelts - 0 3,887 17 Mar, 2023
Mark L Wilson - 0 3,788 22 Nov, 2023
Mark L Wilson - 0 2,644 29 Aug, 2023
Jenele C Grassle - 2,500 0 05 Mar, 2026
Paul C Reyelts - 1,446 0 10 Mar, 2023
Kirk A Mackenzie - 1,000 0 03 Nov, 2021
Percy C Jr Tomlinson - 800 0 03 Mar, 2026
Lawrence A Barbetta - 649 0 18 Sep, 2025
Brett D Heffes Chair And Ceo 0 338 17 Jul, 2025
Gina Decaro Sprenger - 250 0 13 Aug, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
04 Mar, 2026 Jenele C Grassle Common Stock D 3,900 $475.80 2,500 D S
03 Mar, 2026 Percy C Jr Tomlinson Common Stock D 1,660 $460.52 800 D S
26 Feb, 2026 Percy C Jr Tomlinson Common Stock A 1,600 $242.58 2,400 D M
26 Feb, 2026 Percy C Jr Tomlinson Common Stock A 60 $197.80 2,460 D M
26 Feb, 2026 Percy C Jr Tomlinson Non-Employee Stock Option (right to buy) D 1,600 $242.58 5,400 D M
26 Feb, 2026 Percy C Jr Tomlinson Non-Employee Stock Option (right to buy) D 60 $197.80 220 D M
25 Feb, 2026 Jenele C Grassle Common Stock A 800 $134.25 3,300 D M
25 Feb, 2026 Jenele C Grassle Common Stock A 800 $143.20 4,100 D M
25 Feb, 2026 Jenele C Grassle Common Stock A 800 $156.00 4,900 D M
25 Feb, 2026 Jenele C Grassle Common Stock A 750 $164.84 5,650 D M
25 Feb, 2026 Jenele C Grassle Common Stock A 750 $176.20 6,400 D M
25 Feb, 2026 Jenele C Grassle Non-Employee Stock Option (right to buy) D 800 $134.25 0 D M
25 Feb, 2026 Jenele C Grassle Non-Employee Stock Option (right to buy) D 800 $143.20 0 D M
25 Feb, 2026 Jenele C Grassle Non-Employee Stock Option (right to buy) D 800 $156.00 0 D M
25 Feb, 2026 Jenele C Grassle Non-Employee Stock Option (right to buy) D 750 $164.84 0 D M
25 Feb, 2026 Jenele C Grassle Non-Employee Stock Option (right to buy) D 750 $176.20 0 D M
15 Dec, 2025 Philip Irving Smith Non-Employee Stock Option (right to buy) A 256 $444.54 256 D A
15 Dec, 2025 Keith Credendino Non-Employee Stock Option (right to buy) A 256 $444.54 256 D A
15 Dec, 2025 Lisa Schurke Hake Employee Stock Option (right to buy) A 1,216 $444.54 1,216 D A
15 Dec, 2025 Amy C Becker Non-Employee Stock Option (right to buy) A 256 $444.54 256 D A