Is MedImmune up for sale? According to a company statement, the board of directors at the company “has authorized management to evaluate whether third parties would have an interest in acquiring the company at a price and on terms that would represent a better value for its stockholders than having the company continue to execute its business plan on a stand-alone basis.” In February, the board announced that the company was sticking to its guns, but evidently MedImmune has receiv...