Altimmune (DB: 3G0) has a market capitalization of $433.77M. Last close €2.02 (as of 2026-10-21); 52-week range €1.93 to €5.32. ORTEX data as of 2026-10-19: short interest is 6.26% of free float, 6,277 days to cover and the average cost to borrow is 0.41%.