4 2003-06-25 0 0000817161 ALARIS MEDICAL SYSTEMS INC AMI 0001216634 MATHEWS ROBERT 0 1 0 0 VP, Finance and Treasurer AMI Common Stock 2003-07-02 4 M 0 21000 1.344 A 55386 D AMI Common Stock 2003-07-02 4 M 0 4000 2 A 59386 D AMI Common Stock 2003-07-02 4 S 0 25000 11.843 D 34386 D AMI Stock Option Grant 12.89 2003-06-25 4 A 0 23263 12.89 A 2004-06-25 2013-06-25 AMI Common Stock 23263 275699 D AMI Stock Option Grant 12.89 2003-06-25 4 A 0 36737 12.89 A 2004-06-25 2013-06-25 AMI Common Stock 36737 312436 D AMI Stock Option Exercise 1.344 2003-07-02 4 M 0 21000 1.344 D 2003-06-05 2010-07-26 AMI Common Stock 21000 291436 D AMI Stock Option Exercise 2 2003-07-02 4 M 0 4000 2 D 2003-05-07 2009-12-23 AMI Common Stock 4000 287436 D Under registration statement effective May 16, 2003; net of $0.657 per share underwriting discount. Right to Buy Vests in four installments: 5,082 shares vest on 06/25/2004; 5,212 shares vest on 06/25/2005; 5,212 shares vest on 06/25/2006; and 7,757 shares vest on 06/25/2007. Vests in four installments: 9,918 shares vest on 06/25/2004; 9,788 shares vest on 06/25/2005; 9,788 shares vest on 06/25/2006; 7,243 shares vest on 06/25/2007. Vests if and when the price of the company's common stock reaches certain levels for certain lengths of time or seven years after grant. /s/ Stuart E. Rickerson as Attorney-in-Fact for Robert Mathews 2003-07-02