PLEXUS CORP — Director's Dealing 2010

Jan 27, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PLEXUS CORP (PLXS)
CIK: 0000785786
Period of Report: 2010-01-25

Reporting Person: Mauthe Joseph (VP Global Human Resources)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-01-25	Option to buy	$33.999	A	2000	Acquired	2020-01-25	Common Stock (2000)	Direct
2010-01-25	Restricted Stock Units	$	A	2000	Acquired		Common Stock (2000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $.01 par value	2000	Direct
Common Stock, $.01 par value	2275	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Option to buy	$16.25	2017-03-12	Common Stock (4000)	4000	Direct
Option to buy	$18.085	2018-10-31	Common Stock (2000)	2000	Direct
Option to buy	$14.625	2019-02-02	Common Stock (2000)	2000	Direct
Option to buy	$20.953	2019-05-04	Common Stock (2000)	2000	Direct
Option to buy	$25.751	2019-08-03	Common Stock (2000)	2000	Direct
Option to buy	$25.335	2019-11-02	Common Stock (2000)	2000	Direct
Restricted Stock Units	$		Common Stock (641)	641	Direct
Restricted Stock Units	$		Common Stock (1990)	1990	Direct
Restricted Stock Units	$		Common Stock (5000)	5000	Direct
Stock Appreciation Rights	$30.54	2014-11-05	Common Stock (550)	550	Direct
Stock Appreciation Rights	$22.17	2015-01-28	Common Stock (550)	550	Direct
Stock Appreciation Rights	$24.21	2015-04-28	Common Stock (550)	550	Direct
Stock Appreciation Rights	$29.71	2015-07-29	Common Stock (550)	550	Direct

Footnotes

F1: Shares of Plexus Corp. common stock held in the Plexus Corp. 401(k) Savings Plan as of the last date of a statement from the Plan's trustee.

F2: Options granted under the Plexus Corp. 2005 Equity Incentive Plan, which qualifies under Rule 16b-3; one third vests each year, commencing on the first anniversary of grant.

F3: Options granted under the Plexus Corp. 2008 Long-Term Incentive Plan, which qualifies under Rule 16b-3; one half vests each year, commencing on the first anniversary of grant.

F4: Each Restricted Stock Unit granted under the Plexus Corp. 2005 Equity Incentive Plan, which qualifies under Rule 16b-3, represents a contingent right to receive one share of Plexus Corp. common stock. The Restricted Stock Units vest on November 5, 2010.

F5: Each Restricted Stock Unit granted under the Plexus Corp. 2008 Long-Term Incentive Plan, which qualifies under Rule 16b-3, represents a contingent right to receive one share of Plexus Corp. common stock. The Restricted Stock Units vest on October 31, 2011.

F6: Each Restricted Stock Unit granted under the Plexus Corp. 2008 Long-Term Incentive Plan, which qualifies under Rule 16b-3, represents a contingent right to receive one share of Plexus Corp. common stock. The Restricted Stock Units vest on August 3, 2012.

F7: Each Restricted Stock Unit granted under the Plexus Corp. 2008 Long-Term Incentive Plan, which qualifies under Rule 16b-3, represents a contingent right to receive one share of Plexus Corp. common stock. The Restricted Stock Units vest on January 25, 2013.

F8: Stock Appreciation Rights granted under the Plexus Corp. 2005 Equity Incentive Plan, which qualifies under Rule 16b-3; one half vests each year, commencing on the first anniversary of grant.

F9: Stock Appreciation Rights granted under the Plexus Corp. 2008 Long-Term Incentive Plan, which qualifies under Rule 16b-3; one half vests each year, commencing on the first anniversary of grant.