Europe seen higher after US rally; M&A in focus By: CNBC.com News April 22, 2014 at 00:42 AM EDT European shares are set for a higher open on Tuesday, starting a shortened trading week on a positive note after U.S. stocks rose on thin volumes Monday. Read More >> Related Stocks: Astrazeneca Plc ADR Genel Energy Plc Genel Energy Plc Koninklijke Philips Electronics ADR Netflix Pfizer Sentinelone Inc Cl A Twitter, Inc.