Pfizer stock slips today as $1.9 billion ViiV exit and Novavax Matrix‑M deal land
Pfizer shares fell 0.7% to $25.47 after announcing a $1.9 billion exit from its HIV venture ViiV Healthcare, with the deal expected to close in Q1 pending regulatory approval. Novavax disclosed Pfizer licensed its Matrix‑M adjuvant for use in vaccines, sending Novavax shares up nearly 7%.