Australia’s CSL to Buy Drugmaker Vifor for $11.7 Billion

  • Offer of $179.25 a share equates to 40% premium, CSL says
  • Deal extends CSL’s reach beyond flu shots and plasma
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Australian biotech company CSL Ltd. agreed to buy Swiss drugmaker Vifor Pharma AG for an equity value of $11.7 billion to add treatments for kidney disease and iron deficiency.

CSL is offering to buy all publicly held Vifor shares for $179.25 each -- the equivalent of 167 francs apiece. That’s a premium of 40% to the 60-day average price of the stock as of Dec. 1, CSL said Tuesday.