Edwards Lifesciences - The medical device maker surged after receiving Food and Drug Administration approval for an updated version of its implantable heart valve.
GW Pharmaceuticals - The drug developer rose after reporting its experimental cannabis product showed promising results in children and young adults with treatment resistant epilepsy.
Leucadia National - Shares rose after Jefferies Group, the company's investment bank, reported a 55 percent increase in quarterly profit.
Micros Systems - The maker of software for retailers and hotel chains surged after Bloomberg cited people familiar with the matter in reporting Oracle was in discussions to acquire the company for more than $5 billion. NCR and VeriFone Systems also gained on the news.
Netflix - The provider of online programs and films rose after Morgan Stanley upgraded its shares to overweight from equal weight.
Shire - The Irish drug manufacturer slid after Reuters reported late Monday that it had hired additional advisers in preparation for possible offers.
SolarCity - The solar energy systems installer rose after agreeing to acquire solar panel manufacturer Silevo.
United Parcel Service - The shipper edged higher after saying it would start charging by size for all ground services in the United States. Rival FedEx made a similar move in May.
Yingli Green Energy Holding Co. - The Chinese solar panel maker jumped after projecting increased demand in the second quarter.
(Read More: See CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
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