<Tr> <Th> Website </Th> <Td> www.canopygrowth.com www.tweed.com www.bedrocan.ca </Td> </Tr> <P> Canopy Growth Corporation, formerly Tweed Marijuana Inc., is a medical marijuana company based in Smiths Falls, Ontario, founded by Bruce Linton and Chuck Rifici in 2014 . Rifici left the company in 2015 . As of late September 2018, Canopy was the world's largest cannabis company, based on the value of all shares, or market capitalization . </P> <P> A Carleton University grad, Linton took over as Chairman and CEO while Marc Wayne became the President . The company was the first federally regulated, publicly traded cannabis producer in North America, traded on the Toronto Stock Exchange as WEED . It began trading as CGC on the New York Stock Exchange on May 24, 2018, as the first cannabis producer on the NYSE . Until October 17, 2018--marijuana is legal in Canada only for medical purposes; until that time, growers are licensed by Health Canada under the Access to Cannabis for Medical Purposes Regulations (ACMPR). The company was described as "one of the world's--and Canada's first--premier exporters of marijuana" by the Financial Post news organization in December 2016 . </P> <P> The company was renamed to Canopy Growth Corp. in September 2015 with two established brands . Specifically, CGC is the parent company of licensed cannabis producers Tweed Inc., Tweed Farms Inc., Bedrocan Canada Inc., as well as newly acquired companies . </P>

When did canopy growth go public in canada