X0306 4 2020-07-27 0 0000785786 PLEXUS CORP PLXS 0001600425 Darroch Ronnie ONE PLEXUS WAY NEENAH WI 54956 0 1 0 0 Exec VP & Reg Pres-EMEA Common Stock, $.01 par value 2020-07-27 4 S 0 1216 73.015 D 6594 D This filing is delayed due to the filer's inability to access EDGAR on the form's due date, due to EDGAR technical difficulties. Ronald Darroch, by Kate A. Gitter, Attorney-in-Fact 2020-07-29