PEN key data
Penumbra (NYSE: PEN) has a market capitalization of $12.70B. Last close $324.34 (as of 2026-10-21); 52-week range $221.26 to $362.41. ORTEX data as of 2026-10-19: short interest is 5.86% of free float, 6.5 days to cover and the average cost to borrow is 1.33%.