X0306 4 2018-11-07 1 0000104897 WSI INDUSTRIES, INC. WSCI 0001247760 SHEELY PAUL D 213 CHELSEA ROAD MONTICELLO MN 55362 0 1 0 0 VP/CFO Common Stock 2018-11-07 4 D 0 17167 7 D 0 D Stock Option (Right-to-Buy) 3.46 2018-11-07 4 D 0 7500 D 2019-01-08 Common Stock 7500 0 D Stock Option (Right-to-Buy) 2.13 2018-11-07 4 D 0 5000 D 2020-01-06 Common Stock 5000 0 D Stock Option (Right-to-Buy) 4.93 2018-11-07 4 D 0 5000 D 2021-01-10 Common Stock 5000 0 D Stock Option (Right-to-Buy) 5.07 2018-11-07 4 D 0 5000 D 2022-01-09 Common Stock 5000 0 D Stock Option (Right-to-Buy) 6.38 2018-11-07 4 D 0 9000 D 2023-01-08 Common Stock 9000 0 D Stock Option (Right-to-Buy) 6.12 2018-11-07 4 D 0 9500 D 2023-12-23 Common Stock 9500 0 D Stock Option (Right-to-Buy) 5.95 2018-11-07 4 D 0 11000 D 2024-12-23 Common Stock 11000 0 D Stock Option (Right-to-Buy) 4.44 2018-11-07 4 D 0 12750 D 2025-12-24 Common Stock 12750 0 D Stock Option (Right-to-Buy) 2.98 2018-11-07 4 D 0 15000 D 2026-12-28 Common Stock 15000 0 D Stock Option (Right-to-Buy) 4.69 2018-11-07 4 D 0 12000 D 2027-12-26 Common Stock 12000 0 D Disposed of as a result of the merger pursuant to previously announced Agreement and Plan of Merger, dated September 5, 2018, by and among Polaris Industries Inc., Iceman Merger Sub, Inc. and WSI Industries, Inc. Fully vested. Pursuant to the agreement and plan of merger referred to above, each outstanding option was cancelled in exchange for a cash payment in an amount equal to the excess, if any, of $7.00 over the share exercise price of such option multiplied by the number of shares of common stock subject to such option. Suzette McNally, Attorney-in-Fact for Paul D. Sheely 2018-11-07