Assessing recent moves in SELLAS Life Sciences Group (SLS) SELLAS Life Sciences Group (SLS) has drawn attention after a recent run in its share price, with returns over the past 3 months and year that stand out against its mixed multi year track record. Over the past month the stock shows a gain, alongside a much stronger move in the past 3 months and a very large 1 year total return, while 5 year performance remains negative. That mix often prompts investors to revisit the story behind the...