Biogen Shares Surge 2.71% on $230M Volume Boosted by Pipeline Progress Ranks 444th in Market Activity

On August 15, 2025, Biogen Inc. (BIIB) rose 2.71% to $138.60, with a trading volume of $230 million, up 43.96% from the prior day, ranking 444th in market activity. The stock’s performance was driven by progress in its pipeline, including the initiation of a Phase III trial for zorevunersen, a potential disease-modifying therapy for Dravet syndrome. The collaboration with Stoke Therapeutics, which dosed the first patient in the EMPEROR study, underscores Biogen’s focus on rare neurological disorders.

Recent updates highlight Biogen’s strategic advancements. A Phase III trial for felzartamab, targeting kidney transplant rejection, and expanded studies for IgA nephropathy and primary membranous nephropathy, reflect its commitment to diversifying therapeutic areas. Additionally, ZURZUVAE (zuranolone) received a positive CHMP opinion for postpartum depression, signaling regulatory momentum. These developments reinforce investor confidence amid challenges in its multiple sclerosis portfolio.

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