CF can only comment on material changes, i.e. a change that is fact, official and significant enough that one would expect a SP reaction on its announcement.

A major verbally communicating interest to CF is not a material event.  Its not material until it is official with signatures in ink etc.  

So Elmer could have got a phone call last week from Newmont hearing "We're gonna own your ass and soon!" and this would not be something that he needs to divulge or announce even if the regulators come knocking. 

JMHO