X0306 4 2017-07-30 0000100378 TWIN DISC INC TWIN 0001226982 BATTEN JOHN H TWIN DISC, INC. 1328 RACINE ST. RACINE WI 53403 1 1 1 President and CEO Common Stock 2017-07-30 4 F 0 5459 17.047 D 172668 D Common Stock 2457.2805 I 401(k) Common Stock 221156 I As Trustee Common Stock 221155 I As Trustee Common Stock 45440 I As Trustee Common Stock 44960 I As Trustee Common Stock 45440 I As Trustee Shares surrendered to Company to satisfy tax withholding obligation upon vesting of restricted stock granted on 7/30/14. As trustee of Michael E. Batten Marital Trust As trustee of Michael E. Batten Family Trust As trustee of Elizabeth Batten Stribney Trust. As trustee of Timothy Michael Batten Trust. As trustee of Louise Vernet Batten Grantor Trust. /s/ John H. Batten 2017-08-01