i had to reread your message... you made your message a quiz : )
$13.74 is equal to the current market cap divided by the 24.6 million shares not owned by NVS... (i dunno... you do have my interest)
would say rationale includes fact that a buyout will be more economical to NVS than to pay possible profits / milestones / royalties on Tyzeka and 283 ... plus NVS would get other drugs in the pipeline.
got to work on kitchen floor... preparing it for tile. later.
I have no clue how you derived at your buyout price, but I've thought all along the HIV franchise could prove pivotal..at some point the cost of a full buyout is less than the cumulative partnership layouts on individual candidates