The P2 report top end value was $5B (rounded). Fully diluted, the SP is $4.50/$1B so a $20 offer wouldn't even get past the Board of Directors. If there is going to be a buyout offer from a bona fide suitor start thinking in terms of $10B+. Anything less is a none issue so stop worrying about it.

As Eileen presented the NPV of their $70B+ value brought things back to a value that might be realistic, perhaps $20B depending upon what assumptions were used in the model but don't worry, $20/share won't even get presented to the shareholders.