GlaxoSmithKline (NYSE:GSK) may bid $25/share for Human Genome Sciences (HGSI), the Daily Mail speculates, citing their partnership in developing the FDA-approved lupus drug Benlysta. With Merck (NYSE:MRK) and Biogen (NASDAQ:BIIB) also sniffing around the company, GSK "could decide now would be an opportune time to make a move on HGS." HGSI +4.9% AH.