X0304 4 2012-02-08 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 2012-02-08 4 A 0 1198 31.28 A 14514 D Common Shares, No Par Value 1771068 I See footnotes Pursuant to the governing documents of Breeden Partners L.P., Breeden Partners (California) L.P., and Breeden Partners (California) II L.P., (the "Funds"), any profits realized with respect to these shares will be apportioned among the Funds Pursuant to the governing documents of the Funds, any profits realized with respect to these shares will be apportioned among the Funds. Richard C. Breeden is the managing member of Breeden Capital Partners LLC, managing member and chairman and chief executive officer of Breeden Capital Management LLC and the Key Principal of Breeden Partners (Cayman) Ltd. Breeden Capital Partners LLC is in turn the general partner of Breeden Partners L.P., Breeden Partners (California) L.P. and Breeden Partners (California) II L.P. Pursuant to Rule 16a-1(a)(2)(ii)(B) of the Securities Exchange Act of 1934, as amended, Mr. Breeden in his capacity as managing member, as well as chairman and chief executive officer of Breeden Capital Management LLC, may be deemed to be the indirect beneficial owner of the Common Shares owned by the Funds; however, he disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. /s/ Richard C. Breeden 2012-02-10