Shares of Pfizer (PFE) are under pressure after both Morgan Stanley and Bank of America Merrill Lynch downgraded the stock to Neutral-equivalent ratings. Morgan Stanley analyst… To see the rest of the story go to thefly.com. (See Story Here):(https://www.thefly.com/permalinks/entry.php/id2941110/-Pfizer-slides-as-analysts-move-to-sidelines-following-Mylan-deal-guidance-cut)