Under the terms of the agreement, which is structured as an all-stock, Reverse Morris Trust transaction, each Mylan share would be converted into one share of the new company. Pfizer shareholders would own 57% of the combined new company, and Mylan shareholders would own 43%. The Boards of Directors of both Mylan and Pfizer have unanimously approved the transaction.

The new company will transform and accelerate each businesses' ability to serve patients' needs and expand their capabilities across more than 165 markets by bringing together two highly complementary businesses. Mylan brings a diverse portfolio across many geographies and key therapeutic areas, such as central nervous system and anesthesia, infectious disease and cardiovascular, as well as a robust pipeline, high-quality manufacturing and supply chain excellence. Upjohn brings trusted, iconic brands, such as Lipitor (atorvastatin calcium), Celebrex (celecoxib) and Viagra (sildenafil), and proven commercialization capabilities, including leadership positions in China and other emerging markets.

The transaction will allow the new company to meaningfully expand the geographic reach of Mylan's existing broad product portfolio and future pipeline – including significant investments that have been made across complex generics and biosimilars – into new growth markets where Upjohn has existing sales infrastructure and local market expertise.