Biogen has upped its stake in Korean biologics and biosimilar developer Samsung BioLogics from 5.4% to 50%, minus one share. Samsung Bioepis was founded in 2012 and has since been one of a handful of drugmakers to see regulatory success with biosimilar products both in Europe and the US. A joint venture between Korean contract development and manufacturing organization (CDMO) Samsung BioLogics and biopharma firm Biogen, the former has until now been the dominant stakeholder, holding 94.6% of the firm.…