SUPN key data
Supernus Pharmaceuticals (Nasdaq: SUPN) has a market capitalization of $2.31B. Last close $41.20 (as of 2026-10-21); 52-week range $37.54 to $59.68. ORTEX data as of 2026-10-19: short interest is 9.55% of free float, 6 days to cover and the average cost to borrow is 0.5%.