One Business Partner Managed a Billion-Dollar Portfolio at Barclays, the Other Heads an Ivy League Medical School Department. Can They Create a Unicorn Together? Posted byEntrepreneur Staff July 2, 2021 Leave a comment on One Business Partner Managed a Billion-Dollar Portfolio at Barclays, the Other Heads an Ivy League Medical School Department. Can They Create a Unicorn Together? Michael Nelson is the CEO of Intrommune Therapeutics, while Dr. Bill Reisacher sits on its scientific advisory board.