Sanders’ Tweet on Drugmaker Ariad’s ‘Greed’ Sends Stock Plunging

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A 114-character tweet from Senator Bernie Sanders’ twitter account cost Ariad Pharmaceuticals Inc. investors as much as $387 million on Friday afternoon.

“Drug corporations’ greed is unbelievable. Ariad has raised the price of a leukemia drug to almost $199,000 a year,” said the tweet, linking to an article about the drugmaker written by Stat News.