Stocks making the biggest moves after hours

Stocks making the biggest moves after hours
These are the stocks moving the most in extended trading hours:
$iRobot (IRBT.US)$
— The Roomba manufacturer tumbled more than 30%. The Wall Street Journal reported late Thursday that the European Union's antitrust watchdog anticipates blocking Amazon's acquisition of iRobot.
$Super Micro Computer (SMCI.US)$
— Shares of the information technology firm gained 6% after Super Micro Computer reported preliminary second-quarter adjusted earnings of between $5.40 and $5.55 per share, higher than its previous guidance of between $4.40 to $4.88 per share.
$The Wendy's Co (WEN.US)$
— The fast-food restaurant jumped 1% in after-hours trading after the company named PepsiCo executive Kirk Tanner its new CEO.