-- Health care stocks were flat to lower premarket Monday, with the State Street Health Care Select Sector SPDR ETF (XLV) inactive and the iShares Biotechnology ETF (IBB) down 0.5%.
Biogen (BIIB) has agreed to acquire TJ Biopharma's rights to the felzartamab antibody in the Greater China Region under a definitive agreement, the companies said. Biogen shares were up more than 1% pre-bell.