Altimmune stock price ends higher after $75 million deal closes as Vanguard filing adds focus
New York, Jan 31, 2026, 05:55 EST — The market has closed. Altimmune (ALT.O) shares ended Friday’s session at $5.60, roughly 10% higher, with the stock fluctuating between $5.00 and $5.65 during the day. Trading volume hit around 6.3 million shares. U.S. markets are closed for the weekend, but come Monday investors will have two key updates: a fresh cash…