Shares in Spanish pharma firm Grifols dropped another 10% on Friday, bringing their weekly loss to nearly 40% after short-seller Gotham City Research accused the Barcelona-based business of manipulating its financial accounts. When contacted by Reuters this week, Grifols rejected Gotham's allegations, which were made in a report published on Tuesday. Grifols, which makes medicines from human blood plasma, has also said it will sue the short-seller and seek compensation.
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