Shares of Abiomed Inc. plunged by nearly a third on the Nasdaq stock exchange Thursday after the Danvers company said it is the subject of a federal investigation.In a filing with the Securities and Exchange Commission, the cardiac device maker disclosed it has received a subpoena from the US attorney’s office seeking documents related to the labeling of its Impella 2.5 heart pump.
Unlimited access to BostonGlobe.com for only 99 cents for the first 4 weeks.Sign up
Are you a home delivery subscriber?
Get FREE access as part of your print subscriptionStart Here
Contact us for help