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

GAMCO INVESTORS, INC. ET AL currently holds 88.4K shares with a market value of $12.1M. It started holding NPK on 2024-09-30. At its peak, it held 110.8K shares on 2024-12-31. Its highest holding value was $12.1M on 2026-03-31. At its lowest, it held 88.4K shares on 2026-03-31, with a value of $8.2M on 2024-09-30. In the recent 180 days, GAMCO INVESTORS, INC. ET AL has decreased its shares by 6.9K. In the recent year, GAMCO INVESTORS, INC. ET AL has decreased its shares by 12.3K.