Pfizer (NYSE:PFE) Stock fell by 3.02% to trade at $34.64 by 13:04 (18:04 GMT) on Monday on the NYSE exchange.
The volume of Pfizer shares traded since the start of the session was 15.70M. Pfizer has traded in a range of $34.64 to $35.39 on the day.
The stock has traded at $37.5800 at its highest and $34.6200 at its lowest during the past seven days.
