In this article PFE Kena Betancur | Corbis News | Getty Images Pfizer had a "phenomenal" first quarter — and Wall Street took notice, CEO Albert Bourla told thousands of employees during a companywide town hall on May 2, according to a recording heard by CNBC. A day earlier, the pharmaceutical giant's stock had closed 6% higher after its quarterly results topped analyst estimates and it hiked its full-year outlook. It was a far cry from the year prior, when Pfizer's shares plunged more than 40%, making it o ...