Key facts: Biogen's Alzheimer's drug delays progression by 30%; CEO boosts shares

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2025.12.04 20:04
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Biogen's Alzheimer's treatments, targeting amyloid deposits, have shown a 30% delay in disease progression, unlike Novo Nordisk's semaglutide, which offered no cognitive benefits for early patients.1On December 3, 2025, Biogen CEO Christopher Viehbacher acquired 3,636 shares, increasing his total to 16,443. Some shares were surrendered to cover option costs and taxes.2

  • Biogen's Alzheimer's treatments, targeting amyloid deposits, have shown a 30% delay in disease progression, unlike Novo Nordisk's semaglutide, which offered no cognitive benefits for early patients.1
  • On December 3, 2025, Biogen CEO Christopher Viehbacher acquired 3,636 shares, increasing his total to 16,443. Some shares were surrendered to cover option costs and taxes.2