After hours movers (Feb 18)
Gainers
$SNBR 12.891% ~ Sleep Number Corp
$MANT 10.067% ~ ManTech International
$MACK 10.035% ~ Merrimack Pharma
$BCOV 9.243% ~ Brightcove
$MITO 8.173% ~ Stealth BioTherapeutics
Losers
$EH -6.471% ~ EHang Holdings Ltd
$STMP -8.962% ~ Stamps.com
$CLPS -6.734% ~ CLPS
$IQ -7.726% ~ IQIYI
$WKEY -2.166% ~ WISeKey International Holding AG