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^*

FOATE DEAN A

(Last)

(First)

(Middle)

55 JEWELERS PARK DRIVE

(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)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
03/09/2010

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	03/09/2010		M		12,500	A	$12.94	65,930	D
Common Stock, $.01 par value	03/09/2010		S		12,500	D	$36.99	53,430	D
Common Stock, $.01 par value								2,000	I	Adult child's account⁽¹⁾
Common Stock, $.01 par value								22,982	I	401(k)⁽²⁾
Common Stock, $.01 par value								8,140	D⁽³⁾

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	$35.5469							⁽⁴⁾	04/24/2010	Common Stock	20,000		20,000	D
Option to buy	$23.55							⁽⁴⁾	04/06/2011	Common Stock	25,752		25,752	D
Option to buy	$25.285							⁽⁴⁾	04/22/2012	Common Stock	100,000		100,000	D
Option to buy	$14.015							⁽⁴⁾	08/14/2013	Common Stock	45,000		45,000	D
Option to buy	$15.825							⁽⁴⁾	04/28/2014	Common Stock	75,000		75,000	D
Option to buy	$12.94	03/09/2010		M			12,500	⁽⁴⁾	05/18/2015	Common Stock	12,500	$0.00	87,500	D
Option to buy	$42.515							⁽⁴⁾	05/17/2016	Common Stock	100,000		100,000	D
Option to buy	$21.41							⁽⁴⁾	05/17/2017	Common Stock	37,500		37,500	D
Option to buy	$23.83							⁽⁴⁾	08/01/2017	Common Stock	37,500		37,500	D
Option to buy	$30.54							⁽⁴⁾	11/05/2017	Common Stock	18,750		18,750	D
Option to buy	$22.17							⁽⁴⁾	01/28/2018	Common Stock	18,750		18,750	D
Option to buy	$24.21							04/28/2009⁽⁵⁾	04/28/2018	Common Stock	18,750		18,750	D
Option to buy	$29.71							07/29/2009⁽⁵⁾	07/29/2018	Common Stock	18,750		18,750	D
Option to buy	$18.085							10/31/2009⁽⁵⁾	10/31/2018	Common Stock	20,500		20,500	D
Option to buy	$14.625							02/02/2010⁽⁵⁾	02/02/2019	Common Stock	20,500		20,500	D
Option to buy	$20.953							05/04/2010⁽⁵⁾	05/04/2019	Common Stock	20,500		20,500	D
Option to buy	$25.751							08/03/2010⁽⁵⁾	08/03/2019	Common Stock	20,500		20,500	D
Option to buy	$25.335							11/02/2010⁽⁵⁾	11/02/2019	Common Stock	20,500		20,500	D
Option to buy	$33.999							01/25/2011⁽⁵⁾	01/25/2020	Common Stock	20,500		20,500	D
Restricted Stock Units	⁽⁶⁾							⁽⁶⁾	⁽⁶⁾	Common Stock	21,375		21,375	D
Restricted Stock Units	⁽⁷⁾							⁽⁷⁾	⁽⁷⁾	Common Stock	20,398		20,398	D
Restricted Stock Units	⁽⁸⁾							⁽⁸⁾	⁽⁸⁾	Common Stock	20,398		20,398	D

Explanation of Responses:

1. Held in an account for Mr. Foate's adult child who resides in his household.

2. 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.

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

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

5. 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.

6. 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.

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 October 31, 2011.

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 25, 2013.

Remarks:

Options were exercised and the resulting shares were sold pursuant to a Rule 10b5-1 plan.

	Dean A. Foate, by Marilyn J. Bathke, Attorney-in-Fact	03/10/2010
	** 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).
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