Chief Financial Officer of Patterson Companies, Inc., a St. Paul, MN, a $3.2 billion, publicly held distributor of equipment, supplies and services to the dental, veterinary and rehabilitation markets. He has been a director of Delphax Technologies, Inc., Minnetonka, MN, since 2000 and from 2003 to 2005 served as a non-Regent member of the Saint John's audit committee.
Armstrong graduated from Saint John's University with a bachelor of science (cum laude) in economics and accounting and a minor in business administration. He is a member of the American Institute of Certified Public Accountants and Minnesota Society of Certified Public Accountants. Armstrong and his wife, Cindy, reside in Bloomington, MN.