Allen Waxman, senior vice president and general counsel at Pfizer, is leaving the company for personal reasons. Mr. Waxman will remain outside counsel to Pfizer through a transition period. David Reid, currently senior vice president and managing director, will assume Mr. Waxman’s responsibilities on an interim basis until the company finds a permanent successor.     “Allen and his team have been strong advocates for Pfizer, securing a number of important legal decisions that are significant ...