TWIN DISC INC — Director's Dealing 2010

Jul 27, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TWIN DISC INC (TWIN)
CIK: 0000100378
Period of Report: 2010-07-26

Reporting Person: BATTEN MICHAEL E (Director, Chairman and CEO, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-07-26	Common Stock	M	12000	$4.4531	Acquired	407978	Direct
2010-07-26	Common Stock	S	12000	$12.4729	Disposed	395978	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-07-26	Stock Options	$4.4531	M	12000	Disposed	2010-08-04	Common Stock (12000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1112.7088	Indirect
Common Stock	608918	Indirect
Common Stock	10400	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Options	$3.7625	2011-08-13	Common Stock (16000)	16000	Direct
Stock Options	$3.6125	2012-08-02	Common Stock (32000)	32000	Direct

Footnotes

F1: As Trustee for Trusts for members of immediate family.

F2: Stock owned by spouse, Gloria S. Batten