Pfizer (NYSE:PFE) fell by 3.02% to trade at $39.69 by 13:51 (17:51 GMT) on Wednesday on the NYSE exchange.
The volume of Pfizer shares traded since the start of the session was 22.15M. Pfizer has traded in a range of $39.68 to $40.96 on the day.
The stock has traded at $43.0000 at its highest and $39.6500 at its lowest during the past seven days.
