Mr Parkinson will replace David Swetlow, vice president of finance and operations, who is leaving Protox to pursue entrepreneurial opportunities.
Previously, Mr Parkinson was vice president of finance at Aspreva Pharmaceuticals. Mr Parkinson is a graduate of the University of Saskatchewan where he received a bachelor of commerce and bachelor of arts in economics.
Fahar Merchant, president and CEO of Protox, said: “John has proven leadership capabilities, business acumen and a track record of successfully managing change and delivering profitable growth. His wealth of knowledge and experience in the US and Canadian capital markets, managing sizable partnership relationships, as well as his thorough understanding of business operations, will provide tremendous depth to our management team.”