BRAUNSCHWEILER LUKAS 4

4 · DIONEX CORP /DE · Filed May 11, 2009

Insider Transaction Report

Form 4

Period: 2009-05-07

DIONEX CORP /DEDNEX

BRAUNSCHWEILER LUKAS

President & CEO

Transactions

Exercise/Conversion
Common Stock
2009-05-11$48.05/sh+315$15,136→ 20,315 total
Exercise of In-Money
Nonqualified Stock Option
2009-05-08$47.19/sh−22,463$1,060,029→ 70,001 total
Exercise: $47.19From: 2006-01-30Exp: 2014-07-29→ Common Stock (22,463 underlying)
Exercise/Conversion
Common Stock
2009-05-11$53.38/sh+20,625$1,100,963→ 40,625 total
Sale
Common Stock
2009-05-11$56.53/sh−20,625$1,166,030→ 20,000 total
Exercise of In-Money
Nonqualified Stock Option
2009-05-07$47.19/sh−1$47→ 62,455 total
Exercise: $47.19From: 2005-07-30Exp: 2014-07-29→ Common Stock (1 underlying)
Exercise of In-Money
Nonqualified Stock Option
2009-05-11$53.38/sh−20,625$1,100,963→ 41,830 total
Exercise: $53.38From: 2007-08-01Exp: 2016-07-31→ Common Stock (20,625 underlying)
Exercise/Conversion
Common Stock
2009-05-08$47.19/sh+22,463$1,060,029→ 42,463 total
Sale
Common Stock
2009-05-08$57.05/sh−22,463$1,281,438→ 20,000 total
Exercise/Conversion
Common Stock
2009-05-08$48.05/sh+7,545$362,537→ 27,545 total
Sale
Common Stock
2009-05-11$56.53/sh−315$17,808→ 20,000 total
Exercise of In-Money
Nonqualified Stock Option
2009-05-08$48.05/sh−7,545$362,537→ 62,456 total
Exercise: $48.05From: 2006-08-03Exp: 2015-08-02→ Common Stock (7,545 underlying)
Exercise/Conversion
Common Stock
2009-05-07$47.19/sh+1$47→ 20,001 total
Sale
Common Stock
2009-05-07$58.04/sh−1$58→ 20,000 total
Sale
Common Stock
2009-05-08$57.05/sh−7,545$430,417→ 20,000 total
Exercise of In-Money
Nonqualified Stock Option
2009-05-11$48.05/sh−315$15,136→ 41,515 total
Exercise: $48.05From: 2006-11-03Exp: 2015-08-02→ Common Stock (315 underlying)

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