GAMCO INVESTORS, INC. ET AL's ownership history for OTTR

GAMCO INVESTORS, INC. ET AL currently holds 272.4K shares with a market value of $22.3M. It started holding OTTR on 2024-09-30. At its peak, it held 273.7K shares on 2024-12-31. Its highest holding value was $22.3M on 2025-09-30. At its lowest, it held 263.4K shares on 2024-09-30, with a value of $20.2M on 2024-12-31. In the recent 180 days, GAMCO INVESTORS, INC. ET AL has decreased its shares by 842. In the recent year, GAMCO INVESTORS, INC. ET AL has increased its shares by 8.9K.