MACKAY SHIELDS LLC's ownership history for MKSI

MACKAY SHIELDS LLC currently holds 36.5M shares with a market value of $107.5M. It started holding MKSI on 2026-06-30. At its peak, it held 36.5M shares on 2026-06-30. Its highest holding value was $107.5M on 2026-06-30. At its lowest, it held 36.5M shares on 2026-06-30, with a value of $107.5M on 2026-06-30.