X0306 4/A 2013-02-07 2013-02-11 0 0000815065 STERIS CORP STE 0001300622 Breeden Richard C C/O BREEDEN CAPITAL MANAGEMENT LLC 100 NORTHFIELD STREET GREENWICH CT 06830 1 0 0 0 Common Shares, No Par Value 2013-02-07 4 A 0 951 39.43 A 25295 D Common Shares, No Par Value 1694713 I See footnote This amendment is being filed to correct the amount of securities beneficially owned following the transactions reported in Table I of the Form 4 filed on February 11, 2013. Other than as described in footnote 2, there are no other changes from the information originally reported. Mr. Breeden continues to hold of record 25,295 shares of Common Stock directly. The Form 4 filed on February 11, 2013 did not include 7,514 shares that were granted to a former employee of Breeden Capital Management in connection with that employee's service as a director of the Issuer. Such shares were, however, held on behalf of Breeden Capital Management. As a result of the employee's departure from the firm, the shares were transferred to Mr. Breeden on the records of the Issuer's transfer agent on March 16, 2011. This total was inadvertently left out of Mr. Breeden's reported holdings at that time, and this oversight was only recently discovered. /s/ Richard C. Breeden 2013-03-07