Gary Allen Sorenson (born 1943 in Calgary, Alberta) is a Canadian businessman who was arrested at Calgary International Airport on September 29, 2009 for an alleged role in a Ponzi scheme that scammed investors of more than C$300 million, the largest in Canada. On July 28, 2015 Gary Sorenson, 71, and Milowe Brost, 61, were sentenced in a Calgary courtroom to 12 years in prison for their elaborate, multimillion-dollar fraud.