We recently published 10 Big Names Crushing Wall Street. Janus Henderson Group plc (NYSE:JHG) is one of the top-performing stocks on Monday. Janus Henderson soared to a fresh record high on Monday, as investors gobbled up shares following announcements that it was offered to be fully acquired by two of its largest investors for $7.2 billion. In intra-day trading, Janus Henderson Group plc (NYSE:JHG) jumped to its highest 52-week price of$49.42 before trimming gains to end the day just up by 11.34 percen ...