X0303 4 2011-05-09 0000067472 MOLEX INC MOLX 0001012930 SLARK MARTIN P C/O MOLEX INCORPORATED 2222 WELLINGTON COURT LISLE IL 60532 1 1 Vice Chairman and C.E.O. Class A Common Stock 2011-05-09 4 S 0 4767 22.4897 D 295233 D Common Stock 2011-05-09 5 G 0 E 5000 0 D 70759 I Trust Common Stock 2011-05-09 5 G 0 E 5000 0 A 5000 I Family Fund Common Stock 2011-05-09 4 S 0 20233 26.9395 D 50526 I Trust Class A Common Stock 5047 I By Child Class A Common Stock 19 I By Spouse Class A Common Stock 4575 I Custodian For Child Class A Common Stock 247375 I Trust Common Stock 472 I By Child Common Stock 171 I By Spouse The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 1, 2010 and amended on December 6, 2010. The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $22.34 to $22.63, inclusive. The reporting person undertakes to provide to Molex Inc., any security holder of Molex Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote The gift reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 1, 2010 and amended on December 6, 2010. The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $26.81 to $27.21, inclusive. The reporting person undertakes to provide to Molex Inc., any security holder of Molex Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. /s/Mark R. Pacioni, attorney-in-fact for Martin P. Slark 2011-05-11