5 2003-06-30 0 0 0 0000100378 TWIN DISC INC TDI 0001135310 JOYCE MICHAEL H 0 1 0 0 President, COO Common Stock 2003-06-30 5 I 0 463 0 A 3628 D Stock Options 14.45 2002-08-02 5 A 0 4000 14.45 A 2002-08-02 2012-08-02 Common Stock 4000 40500 D Acquired as part of the company's 401K plan Michael H. Joyce 2003-07-01