SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Kelsey Todd P.

(Last)

(First)

(Middle)

ONE PLEXUS WAY

(Street)

NEENAH

54956

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
PLEXUS CORP [ PLXS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Sr VP Global Customer Services

3. Date of Earliest Transaction (Month/Day/Year)
04/25/2011

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock, $.01 par value								3,520	D
Common Stock, $.01 par value								269	D⁽¹⁾
Common Stock, $.01 par value								2,320	I	401(k)⁽²⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Option to Buy	$25.285							⁽³⁾	04/22/2012	Common Stock	3,600		3,600	D
Option to Buy	$15.825							⁽³⁾	04/28/2014	Common Stock	5,000		5,000	D
Option to Buy	$12.94							⁽³⁾	05/18/2015	Common Stock	3,000		3,000	D
Option to Buy	$42.515							⁽³⁾	05/17/2016	Common Stock	5,000		5,000	D
Option to Buy	$21.41							⁽³⁾	05/17/2017	Common Stock	2,500		2,500	D
Option to Buy	$23.83							⁽³⁾	08/01/2017	Common Stock	2,500		2,500	D
Option to Buy	$30.54							⁽³⁾	11/05/2017	Common Stock	3,000		3,000	D
Option to Buy	$22.17							⁽³⁾	01/28/2018	Common Stock	3,000		3,000	D
Option to Buy	$24.21							⁽³⁾	04/28/2018	Common Stock	3,000		3,000	D
Option to Buy	$29.71							⁽³⁾	07/29/2018	Common Stock	3,000		3,000	D
Option to Buy	$18.085							⁽³⁾	10/31/2018	Common Stock	5,000		5,000	D
Option to Buy	$14.625							⁽³⁾	02/02/2019	Common Stock	5,000		5,000	D
Option to Buy	$20.953							05/04/2010⁽⁴⁾	05/04/2019	Common Stock	5,000		5,000	D
Option to Buy	$25.751							08/03/2010⁽⁴⁾	08/03/2019	Common Stock	5,000		5,000	D
Option to Buy	$25.335							11/02/2010⁽⁴⁾	11/02/2019	Common Stock	5,000		5,000	D
Option to Buy	$33.999							01/25/2011⁽⁴⁾	01/25/2020	Common Stock	6,250		6,250	D
Option to Buy	$38.24							04/23/2011⁽⁴⁾	04/23/2020	Common Stock	6,250		6,250	D
Option to Buy	$30.475							07/26/2011⁽⁴⁾	07/26/2020	Common Stock	6,250		6,250	D
Option to Buy	$29.798							11/01/2011⁽⁴⁾	11/01/2020	Common Stock	6,250		6,250	D
Option to Buy	$27.143							01/24/2012⁽⁴⁾	01/24/2021	Common Stock	6,250		6,250	D
Option to Buy	$36.955	04/25/2011		A		6,250		04/25/2012⁽⁴⁾	04/25/2021	Common Stock	6,250	⁽⁴⁾	6,250	D
Restricted Stock Units	⁽⁵⁾							⁽⁵⁾	⁽⁵⁾	Common Stock	4,975		4,975	D
Restricted Stock Units	⁽⁶⁾							⁽⁶⁾	⁽⁶⁾	Common Stock	20,000		20,000	D
Restricted Stock Units	⁽⁷⁾							⁽⁷⁾	⁽⁷⁾	Common Stock	6,250		6,250	D
Restricted Stock Units	⁽⁸⁾							⁽⁸⁾	⁽⁸⁾	Common Stock	10,000		10,000	D

Explanation of Responses:

1. Shares of Plexus Corp. common stock held in the Plexus Corp. Employee Stock Purchase Plan as of the last report from the Plan's Trustee.

2. Shares of Plexus Corp. common stock held in the Plexus Corp. 401(k) Savings Plan as of the last report from the Plan's trustee.

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

4. 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.

5. 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.

6. 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.

7. 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.

8. 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 24, 2014.

Remarks:

	Todd P. Kelsey, by Mary J. Bathke, Attorney-in-Fact	04/27/2011
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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