France's Korian fell about 4% on news of its 1.1 billion euros ($1.5 billion) purchase of care-homes peer Medica, while shares in the junior merger partner rose a similar amount.
The Danish pharmaceuticals maker is facing tighter margins and tougher competition in the U.S.
Gainers include ArcelorMittal, Lafargeholcim, Nokia, Maersk
UnitedHealth becomes the second major healthcare provider to scratch the insulin product from its 2017 medicines roster.
Allegations that Merck breached patents on diabetes blockbuster Lantus looks like a replay of Sanofi's 2015 case against Eli Lilly.