X0202 4 2004-07-02 0 0000785786 PLEXUS CORP PLXS 0001223178 PAINTER SIMON 55 JEWELERS PARK DRIVE NEENAH WI 54956 0 1 0 0 Corp Controller/Prin Acct Off. Common Stock, $.01 par value 1290 I 401(k) Option to buy 55.9063 2000-06-30 2010-06-30 Common Stock 2000 2000 D Option to buy 23.55 2001-04-06 2011-04-06 Common stock 2400 2400 D Option to buy 25.285 2002-04-22 2012-04-22 Common Stock 3000 3000 D Option to buy 8.975 2003-01-30 2013-01-30 Common Stock 4500 4500 D Option to buy 14.015 2003-08-14 2013-08-14 Common Stock 4500 4500 D Option to buy 15.825 2004-04-28 4 A 0 5000 A 2004-04-28 2014-04-28 Common Sock 5000 5000 D Shares of Plexus Corp. common stock held in the Plexus Corp. Employee Stock Savings Plan, as of March 31, 2004, the last date of a statement from the Plan's Trustee. Options granted under the Plexus Corp. Stock Option Plan, which qualified under Rule 16b-3. Options vest one-third each year, commencing on the first anniversary of the grant. As a result of the practices of the Comp. Committee, the exercise price of the options was determined on 4/28/04, and the grants were finalized on 7/2/04, which is deemed the date of grant for the purposes of this report since that was the date upon which the terms became fixed. Simon Painter, by Joseph D. Kaufman, Attorney-in-Fact 2004-07-02