PFE

Pfizer Inc. stock has experienced fluctuations in the past six months. In early May 2026, shares decreased to $26.00 USD, the lowest since February 2026. Over the four weeks leading up to May 8, 2026, the stock lost 4.91%, but increased by 13.71% in the last 12 months. On March 31, 2026, shares had increased to $28.00 USD, the highest since November 2024. In February 2026, Pfizer's stock fell approximately 5% after releasing mid-stage data for its obesity therapy, which showed weight loss but raised safety concerns. Q4 2025 earnings indicated a projected revenue decline for 2026, partly due to patent cliffs. Q1 2026 revenues were $14.5 billion, a 5% year-over-year increase, and the company reaffirmed its full-year 2026 financial guidance.