VANGUARD PORTFOLIO MANAGEMENT LLC's ownership history for MKSI

VANGUARD PORTFOLIO MANAGEMENT LLC currently holds 3.7M shares with a market value of $847.0M. It started holding MKSI on 2026-03-31. At its peak, it held 3.7M shares on 2026-03-31. Its highest holding value was $847.0M on 2026-03-31. At its lowest, it held 3.7M shares on 2026-03-31, with a value of $847.0M on 2026-03-31.