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Ryan Spencer

Ryan Spencer

CEO, Dynavax Technologies

Appears in 1 story

Stories

Big Pharma's vaccine land grab

Money Moves

Leading company through $2.2B acquisition by Sanofi

Sanofi dropped $2.2 billion on December 24, 2025 to acquire Dynavax, a California biotech with a two-dose hepatitis B vaccine and a shingles shot in development. The 39% premium signals desperation: Sanofi is playing catch-up in a vaccine market projected to hit $37.2 billion by 2033, driven by the largest aging population in human history. By 2050, 2.1 billion people will be over 60β€”triple the population over 80. The deal is expected to close in Q1 2026 pending Hart-Scott-Rodino antitrust clearance and other customary regulatory approvals.[1]

Updated Feb 4