X0306 4 2014-02-13 0 0001323974 MWI Veterinary Supply, Inc. MWIV 0001334044 Rebholtz Robert N JR 3041 W. PASADENA DR. BOISE ID 83705 1 0 0 0 Common Stock, par value $0.01 per share 2014-02-13 4 A 0 766 0 A 34266 D Common Stock, par value $0.01 per share 75000 I See footnote Annual grant to non-employee director as part of director compensation program. Held by The Rebholtz Descendants' Trust for the benefit of Mr. Rebholtz's family and certain other persons. Mr. Rebholtz expressly disclaims beneficial ownership of any shares held by such trust that exceed his pecuniary interest therein. Mary Patricia B. Thompson as attorney-in-fact for Robert N. Rebholtz, Jr. 2014-02-14