Should Merck Buy Out Moderna on Keytruda–Cancer Vaccine Partnership?

Should Merck Buy Out Moderna on Keytruda–Cancer Vaccine Partnership?

Source: 
BioSpace
snippet: 

A longtime biopharma exec and Moderna shareholder argues in an anonymous email to the companies’ CFOs that they have a fiduciary responsibility to close the deal. Analysts say the proposal is interesting but “too simplistic.”