Sanders tweet causes drug company to lose $400M in a day
© Greg Nash

A tweet posted to Sen. Bernie SandersBernard (Bernie) SandersDems ponder gender politics of 2020 nominee 2020 Dem contenders travel to key primary states After Florida school shooting, vows for change but no clear path forward MORE’ (D-Vt.) Twitter account on Friday afternoon caused the stock of a pharmaceutical company to crash, costing the company millions of dollars.

Sanders told his 2.6 million followers that Ariad Pharmaceuticals Inc. had raised the price of its leukemia drug “to almost $199,000 a year.”

“Drug corporations’ greed is unbelievable,” the Vermont senator tweeted.

Shortly after the tweet, Ariad’s stock lost 15 percent of its value — or $387 million dollars — its biggest intraday decline in over a year, according to Bloomberg.

The drug mentioned in Sanders tweet, Iclusig, helps to treat a rare form of leukemia, and has indeed seen its price raised four times this year alone, to $16,000 for a 30-day pack.

Hillary ClintonHillary Diane Rodham ClintonWoman behind pro-Trump Facebook page denies being influenced by Russians Trump: CNN, MSNBC 'got scammed' into covering Russian-organized rally Pennsylvania Democrats set to win big with new district map MORE had a similar effect on the drug company Mylan, which saw its shares plummet after she accused it of “price gouging” consumers who buy its EpiPen allergy shot.