PLEXUS CORP — Director's Dealing 2017

May 3, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PLEXUS CORP (PLXS)
CIK: 0000785786
Period of Report: 2017-05-01

Reporting Person: Ninivaggi Angelo Michael Jr (Sr. VP, CAO, Gen Coun & Secy)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-01	Common Stock, $.01 par value	M	2500	$27.143	Acquired	18259	Direct
2017-05-01	Common Stock, $.01 par value	S	2500	$52.0463	Disposed	15759	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-01	Options to Buy	$27.143	M	2500	Disposed	2021-01-24	Common Stock (2500)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $.01 par value	589	Indirect

Footnotes

F1: Shares of Plexus Corp. common stock held in the Plexus Corp. 401(k) Retirement Plan as of the last report from the Plan's trustee.

F2: This transaction was executed in multiple trades at prices ranging from $52.011 to $52.053 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.

F3: Options granted under the Plexus Corp. 2008 Long-Term Incentive Plan, or a predecessor plan, which qualifies under Rule 16b-3; now fully vested.