Biogen rose 63.6% in a year. Moderna rose 10.5-fold.

Same industry

BIIB against four biotech peers, a year at 100

BIIB is up 63.6% in a year. Moderna is up 10.5 times and Exelixis is up 78.3%. Of these four, Amgen (+49.4%) and Gilead Sciences (+46.8%) did less. Weekly closes, Nov 7, 2025 = 100, on a log scale so a 10.5-fold rise and a 46.8% rise both read honestly.

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BIIB +63.6%. Moderna ×10.5, Exelixis +78.3%, Amgen +49.4%, Gilead Sciences +46.8%. Weekly closes, Nov 7, 2025 = 100, log scale.

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End-of-day closes (Databento EOD), the last close of each week. The four peers are the largest US-listed companies by market value in BIIB’s SEC industry (Biological Products, (No Diagnostic Substances)) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.

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