Anti-CD47s are a must have for Pfizer as they shell out $18.50 per share, in cash, representing an aggregate purchase price of approximately $2.22 billion to buy TRILLIUM for its two lead molecules which are in P1/2, TTI-622 and TTI-621 which enhances Pfizer’s Oncology portfolio with addition of next-generation, investigational immuno-therapeutics for hematological malignancies Sorrento has got one of those that is in P1. STI -6643 Sorrento Therapeutics Anti-CD47 antibody