Pfizer (NYSE:PFE) fell by 3.02% to trade at $41.78 by 15:09 (19:09 GMT) on Monday on the NYSE exchange.
The volume of Pfizer shares traded since the start of the session was 43.48M. Pfizer has traded in a range of $41.75 to $43.00 on the day.
The stock has traded at $43.2300 at its highest and $41.7500 at its lowest during the past seven days.
