"Why would ARU shares drop in value if Kinross gets the 50.1%??? Wouldn't they have to sweeten the deal to get 66.7% and then 90%????"
no
because all K wanted is 50.1%
it would slam the door shut
no other bidders will come after that, because they will never be able to get the majority of the shares
K won't ever sell....ever....
so they take their 50.1% and go home
we languish while the offer to buy us one by one on the open market
if they get their 50.1% we are dead in the water
we need another offer...and now
safeharbour