Markets & Economy Olema Pharmaceuticals Shares Fall 15.1% Following AstraZeneca SERENA-4 Trial Results September 14, 2026 · 12:10 pm 1 sources Image: Yahoo Finance ad slot · in-content video 16:9 Coverage More coverageOlema Pharmaceuticals Shares Fall 15.1% Following AstraZeneca SERENA-4 Trial ResultsYahoo Finance · September 14, 2026 12:10