X0303 4 2009-08-03 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 2009-08-03 4 A 0 24300 0 A 372908 D Common Stock 2009-08-03 4 F 0 9526 8.89 D 363382 D Common Stock 2009-08-03 4 A 0 32596 8.89 A 395978 D Common Stock 1112.7088 I 401(k) Common Stock 616818 I As Trustee Common Stock 10400 I Beneficial Ownership Stock Options 4.4531 2000-08-04 2010-08-04 Common Stock 12000 12000 D Stock Options 3.7625 2001-08-13 2011-08-13 Common Stock 16000 16000 D Stock Options 3.6125 2002-08-02 2012-08-02 Common Stock 32000 32000 D As Trustee for Trusts for members of immediate family. Stock owned by spouse, Gloria S. Batten Represents shares of common stock acquired by the Reporting Person upon the vesting of performance shares granted pursuant to Rule 16b-3(d) plan. Represents shares of common stock withheld by the issuer to satisfy tax obligations in connection with the vesting of performance shares granted to the Reporting Person pursuant to Rule 16b-3(d) plan. Award of Restricted Stock for no cash consideration pursuant to the Twin Disc, Incorporated 2004 Stock Incentive Plan as amended. Grant will vest 100% in three years. /s/ Michael E. Batten 2009-08-05