TWIN DISC INC — Director's Dealing 2005

Feb 10, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TWIN DISC INC (TWIN)
CIK: 0000100378
Period of Report: 2005-02-09

Reporting Person: JOYCE MICHAEL H (PRESIDENT/COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-02-09	COMMON STOCK	M	3000	$17.813	Acquired	8628	Direct
2005-02-09	COMMON STOCK	M	792	$24.5	Acquired	9420	Direct
2005-02-09	COMMON STOCK	S	2300	$27	Disposed	7120	Direct
2005-02-09	COMMON STOCK	S	400	$27.03	Disposed	6720	Direct
2005-02-09	COMMON STOCK	S	192	$27.04	Disposed	6528	Direct
2005-02-09	COMMON STOCK	S	100	$27.06	Disposed	6428	Direct
2005-02-09	COMMON STOCK	S	800	$27.07	Disposed	5628	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-02-09	STOCK OPTIONS	$17.813	M	3000	Disposed	2010-08-04	COMMON STOCK (3000)	Direct
2005-02-09	STOCK OPTIONS	$24.5	M	792	Disposed	2005-08-14	COMMON STOCK (792)	Direct