Last updated Aug 4, 2026
WEST PHARMACEUTICAL SERVICES INC (WST) is a publicly traded company. This page tracks every superinvestor 13F holding, congressional stock trade, and Form 4 insider transaction in WST. Across our datasets, 4 superinvestors hold WST and 3 members of Congress have traded it.
Notable holders include Viking Global, Ray Dalio, and Mark Hillman. Active congressional traders include Ro Khanna, Rob Bresnahan, and Lisa McClain.
Key takeaways
