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Merck rises; WSJ reports co to split cancer business ahead of Keytruda patent loss

ReutersFeb 23, 2026 11:34 AM

Shares of drugmaker Merck MRK.N rise 1.41% to $123.98 premarket

MRK is creating a separate cancer business as it prepares for its top-selling cancer drug Keytruda to lose U.S. patent protection in 2028 - the Wall Street Journal

MRK's Keytruda brings in nearly half of Merck's sales and could face cheaper copies after the patent expires, WSJ reports

  A second unit will house vaccines, diabetes drugs and new launches such as lung-disease therapy Winrevair - WSJ

 WSJ reports Merck is planning over 20 drug launches and reorganizing leadership to support future products

Shares rose ~6% in 2025

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