If it is this takeover you are talking about in 2010, it was at a 65% premium to the 30 day volume weighted average price of Mesa Shares.(sorry, link is blocked by HC)
SER How flooding did Strategic Energy Resources a favour: Four holes down in 'redesigned' gold & copper campaign
CC9 Chariot locks in high-potential drill target at Black Mountain, one of the USA's largest lithium landholdings