X0306 4 2017-08-02 0000100378 TWIN DISC INC TWIN 0001307477 Wilcox Denise TWIN DISC, INC. 1328 RACINE ST. RACINE WI 53403 1 VP-Human Resources Common Stock 2017-08-02 4 A 0 4723 16.94 A 38513 D Common Stock 378.8507 I 401(k) Award of Restricted Stock for no cash consideration pursuant to the Twin Disc, Incorporated 2010 Long Term Incentive Compensation Plan as amended. Grant will vest 100% on 8/2/2020. /s/ Denise L. Wilcox 2017-08-04