Warren Buffett just made life miserable for one group of investors

  • Warren Buffett and Berkshire Hathaway disclosed an almost $400 million stake in Teva Pharmaceutical after the market close on Thursday, sending the shares soaring.
  • The big stock increase crushed short sellers, who were sitting on a more than $1.2 billion position when the news hit.

Warren Buffett‘s almost $400 million investment in Teva Pharmaceutical made a lot of investors quite a bit of money as the company’s American deposit receipts (ADRs) surged 11% in after-market trading on Thursday.

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