X0306 4 2012-12-20 0000100378 TWIN DISC INC TWIN 0001202941 BATTEN MICHAEL E TWIN DISC, INC. 1328 RACINE STREET RACINE WI 53403 1 1 1 Chairman and CEO Common Stock 2012-12-20 5 G 0 E 1470 0 D 604484 I As Trustee Common Stock 462804.6 D Common Stock 10400 I Beneficial Ownership Common Stock 1066.9311 I 401(k) Reflects transfer of securities from Trust of immediate family member to Trusts of non-immediate family members for which reporting person serves as Trustee. As Trustee for Trusts for members of immediate family; Reporting person is also Trustee for Trusts of non-immediate family members holding 1,531,786 shares of common stock, for which Section 16 reporting is not required. Stock owned by spouse, Gloria S. Batten /s/ Michael E. Batten 2012-12-20