HOUSTON, TEXAS - SEPTEMBER 23: Eli Lilly CEO David A. Ricks speaks at a press conference at Generation Park in Houston, Monday, Sept. 23, 2025. The company announced plans for a $6.5 billion biomanufacturing plant in north Houston. (Raquel Natalicchio/Houston Chronicle via Getty Images)Houston Chronicle via Getty ImagesEli Lilly stock (NYSE: LLY) surged 5% yesterday, initially driven by news of a Pfizer deal with the White House to lower drug prices in exchange for tariff immunity. Following this, reports s ...