PLEXUS CORP — Director's Dealing 2010

Apr 21, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PLEXUS CORP (PLXS)
CIK: 0000785786
Period of Report: 2010-04-20

Reporting Person: Kelsey Todd P. (Sr VP Global Customer Services)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-04-20	Common Stock, $.01 par value	M	4800	$35.5469	Acquired	4900	Direct
2010-04-20	Common Stock, $.01 par value	S	4800	$38.50	Disposed	100	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-04-20	Option to Buy	$35.5469	M	4800	Disposed	2010-04-24	Common Stock (4800)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $.01 par value	269	Direct
Common Stock, $.01 par value	2129	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Option to Buy	$25.285	2012-04-22	Common Stock (3600)	3600	Direct
Option to Buy	$14.015	2013-08-14	Common Stock (4000)	4000	Direct
Option to Buy	$15.825	2014-04-28	Common Stock (5000)	5000	Direct
Option to Buy	$12.94	2015-05-18	Common Stock (3000)	3000	Direct
Option to Buy	$42.515	2016-05-17	Common Stock (5000)	5000	Direct
Option to Buy	$21.41	2017-05-17	Common Stock (2500)	2500	Direct
Option to Buy	$23.83	2017-08-01	Common Stock (2500)	2500	Direct
Option to Buy	$30.54	2017-11-05	Common Stock (3000)	3000	Direct
Option to Buy	$22.17	2018-01-28	Common Stock (3000)	3000	Direct
Option to Buy	$24.21	2018-04-28	Common Stock (3000)	3000	Direct
Option to Buy	$29.71	2018-07-29	Common Stock (3000)	3000	Direct
Option to Buy	$18.085	2018-10-31	Common Stock (5000)	5000	Direct
Option to Buy	$14.625	2019-02-02	Common Stock (5000)	5000	Direct
Option to Buy	$20.953	2019-05-04	Common Stock (5000)	5000	Direct
Option to Buy	$25.751	2019-08-03	Common Stock (5000)	5000	Direct
Option to Buy	$25.335	2019-11-02	Common Stock (5000)	5000	Direct
Option to Buy	$33.999	2020-01-25	Common Stock (6250)	6250	Direct
Restricted Stock Units	$		Common Stock (3420)	3420	Direct
Restricted Stock Units	$		Common Stock (4975)	4975	Direct
Restricted Stock Units	$		Common Stock (20000)	20000	Direct
Restricted Stock Units	$		Common Stock (6250)	6250	Direct

Footnotes

F1: Transaction pursuant to a Rule 10b5-1 plan.

F2: Shares of Plexus Corp. common stock held in the Plexus Corp. Employee Stock Purchase Plan as of the last date of a statement from the Plan's Trustee.

F3: 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.

F4: Options granted under the Plexus Corp. 2008 Long-Term Incentive Plan, or a predecessor plan, which qualifies under Rule 16b-3; now fully vested.

F5: 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.

F6: 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.

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 October 31, 2011.

F8: 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.

F9: 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.