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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * FOATE DEAN A   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) Chairman, President and CEO (Last) (First) (Middle) ONE PLEXUS WAY 3. Date of Earliest Transaction (Month/Day/Year) 05/02/2016 (Street) NEENAH, WI 54956 4. If Amendment, Date 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 (City) (State) (Zip) 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) Code V Amount (A) or (D) Price Common Stock, $.01 par value               8,140 D (1)   Common Stock, $.01 par value 05/02/2016   M   9,000 A $ 30.54 189,907 D   Common Stock, $.01 par value 05/02/2016   M   18,750 A $ 24.21 208,657 D   Common Stock, $.01 par value 05/02/2016   M   20,500 A $ 20.953 229,157 D   Common Stock, $.01 par value 05/02/2016   M   3,500 A $ 25.335 232,657 D   Common Stock, $.01 par value 05/02/2016   S   51,750 D $ 42.5007 (2) 180,907 D   Common Stock, $.01 par value 05/03/2016   M   17,000 A $ 25.335 197,907 D   Common Stock, $.01 par value 05/03/2016   M   2,750 A $ 29.71 200,657 D   Common Stock, $.01 par value 05/03/2016   M   9,054 A $ 42.515 209,711 D   Common Stock, $.01 par value 05/03/2016   S   28,804 D $ 42.7249 (3) 180,907 D   Common Stock, $.01 par value 05/04/2016   M   9,000 A $ 42.515 189,907 D   Common Stock, $.01 par value 05/04/2016   S   9,000 D $ 42.82 (4) 180,907 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Options to Buy	$ 30.54	05/02/2016		M			9,000	(5)	11/05/2017	Common Stock	9,000	$ 0	0	D
Options to Buy	$ 24.21	05/02/2016		M			18,750	(5)	04/28/2018	Common Stock	18,750	$ 0	0	D
Options to Buy	$ 20.953	05/02/2016		M			20,500	(5)	05/04/2019	Common Stock	20,500	$ 0	0	D
Options to Buy	$ 25.335	05/02/2016		M			3,500	(5)	11/02/2019	Common Stock	3,500	$ 0	17,000	D
Options to Buy	$ 25.335	05/03/2016		M			17,000	(5)	11/02/2019	Common Stock	17,000	$ 0	0	D
Options to Buy	$ 29.71	05/03/2016		M			2,750	(5)	07/29/2018	Common Stock	2,750	$ 0	16,000	D
Options to Buy	$ 42.515	05/03/2016		M			9,054	(5)	05/17/2016	Common Stock	9,054	$ 0	67,500	D
Options to Buy	$ 42.515	05/04/2016		M			9,000	(5)	05/17/2016	Common Stock	9,000	$ 0	58,500	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
FOATE DEAN A ONE PLEXUS WAY NEENAH, WI 54956	X		Chairman, President and CEO

Signatures

Dean A. Foate, by Kate A. Gitter, Attorney-in-Fact		05/04/2016
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(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)	This transaction was executed in multiple trades at prices ranging from $42.27 to $42.6738 per share. The reported price reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(3)	This transaction was executed in multiple trades at prices ranging from $42.5301 to $42.89 per share. The reported price reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(4)	This transaction was executed in multiple trades at prices ranging from $42.7501 to $42.85 per share. The reported price reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(5)	Options granted under the Plexus Corp. 2008 Long-Term Incentive Plan, or a predecessor plan, which qualifies under Rule 16b-3; now fully vested.

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