It took CEO Alf Helge Aarskog just a decade to bring Mowi -- then called Marine Harvest -- from a market cap of NOK 22 billion (€2.1 billion/$2.4 billion) in 2010 to NOK 118 billion (€11.7 billion/$12.8 billion) today, a journey that created the world's most valuable seafood company.

The CEO stepped down on Nov.