Great post Iconoclast. Was about to post the same article.
Add the Zenith connection; see Payzone post: https://agoracom.com/ir/ZenithEpigenetics/forums/discussion/topics/735047-is-pfizer-kicking-zenith-s-tires/messages/2253215#message
I wouldnt be suprised to see Pfizer step up in some kind of way. They painted themselves in the corner by stopping the buybacks, pressure will be on making deals. 5B USD is a small deal for them.