X0304 4 2012-01-23 0 0000785786 PLEXUS CORP PLXS 0001185484 CORTINOVIS STEPHEN P ONE PLEXUS WAY NEENAH WI 54956 1 0 0 0 Common Stock, $.01 par value 7667 D Option to buy 36.79 2012-01-23 4 A 0 1250 A 2012-01-23 2022-01-23 Common Stock 1250 1250 D Deferred Stock Units 2012-01-23 4 A 0 2000 A Common Stock 2000 3333 D Options granted under the Plexus Corp. 2008 Long-Term Incentive Plan, which qualifies under Rule 16b-3. Options immediately vested on grant date. Each Deferred Stock Unit represents a right to receive one share of Plexus Corp. common stock. The reporting person will begin to receive the underlying shares within ten (10) days following the earliest of termination of service as a director, a change in control or the date specified on the reporting person's deferral election. Award granted under the Plexus Corp. 2008 Long-Term Incentive Plan, which qualifies under Rule 16b-3. Stephen P. Cortinovis, by Mary J. Bathke, Attorney-in-Fact 2012-01-24