Calamos Advisors LLC's ownership history for NOG

Calamos Advisors LLC currently holds 15.5M shares with a market value of $14.9M. It started holding NOG on 2026-06-30. At its peak, it held 15.5M shares on 2026-06-30. Its highest holding value was $14.9M on 2026-06-30. At its lowest, it held 15.5M shares on 2026-06-30, with a value of $14.9M on 2026-06-30.