You are correct. From their financial statement Qtr ending 3/18 Aurora has unlimited.
AURORA CANNABIS INC. Notes to the Condensed Interim Consolidated Financial Statements Three and nine months ended March 31, 2018 and 2017
Unaudited
In thousands of Canadian dollars thousands of Canadian
. Share Capital (a) Authorized
Unlimited number of common voting shares without par value; Unlimited number of Class “A” Shares with a pa r value of $1.00 each; and Unlimited number of Class “B ” Shares with a par value of $5.00 each.