In play means the whole company.
IF what they are trying to do, is offer all 43 million to one particular investor, at a specific price, that could be why they are pushing back the news - BUT - that would be pure speculation at this point.
They have to be aware of the news currently, and based on that, it wouldnt make much sense to offer them until AFTER or DURING the squeeze.
talk is 100% rumor and there has been absolutely nothing factual behind it for some time.
HOWEVER Adam Aron has said "we are not for sale, we are over 100 years old and plan to be in business 100 years from now"