Grantham Mayo Van Otterloo & Co., known for the bearish views of founder Jeremy Grantham, more than quadrupled its holdings of Valeant Pharmaceutical International Inc. in the third quarter. Boston-based GMO added 6.5 million shares of Valeant, bringing its total stake to 8.2 million shares, according to a regulatory filing. Grantham’s stake in the drug company,...
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