Update (9:38 a.m.): Updated with Wednesday market open information.
The stock was up 2.91% to $74.30 at 9:37 a.m. on Wednesday.
The agenda was dominated by eurozone economic data, the anniversary of Britain's vote to leave the EU and a political summit in Brussels on Friday.
European stocks rebounded with a bang Friday as recent central bank actions fell by the wayside and markets took heart from the latest bailout deal between Greece and the EU.
After Regulus dropped two of its drug programs, AstraZeneca ditched the duo's drug partnership, too.