8-K current report · filed Mar 11, 2026

Biogen (BIIB) 8-K Current Report: March 11, 2026

Item 5.02BIIB overview

Short answer

Biogen (BIIB) filed an 8-K current report with the SEC on March 11, 2026 reporting Item 5.02 (Departure/Election of Directors or Officers). Susan H. Alexander, Chief Legal Officer, departing Biogen effective end of May 2026.

Biogen 8-K event analysis

AI summary of each reported item and its exhibits

Item 5.02 · Departure/Election of Directors or Officers

  • Susan H. Alexander, Chief Legal Officer, departing Biogen effective end of May 2026
  • CLO search initiated; no interim successor named, creating near-term leadership gap in legal function
  • Departure of C-suite legal head adds execution risk during any ongoing regulatory, litigation, or M&A activity

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