Canadian fintech giant Wealthsimple has raised a new round of $750 million CAD (~$610 million) at a post-money valuation of $5 billion CAD (~$4 billion). The round was led by Meritech and Greylock, and includes funding from Inovia, Sagard, Redpoint, Two Sigma Ventures, TCV as well as individual investors including Drake, Ryan Reynolds and Michael J. Fox (basically, all the most famous Canadians). Wealthsimple’s big new raise more than doubles its valuation from its last round, a $114 million CAD (roughly $93 million) funding announced last October, which carried a…