WEST PHARMACEUTICAL SERVICES (WST) Institutional Ownership and Insiders Activity

WEST PHARMACEUTICAL SERVICES (WST) is widely held by institutional investors, with 4 tracked firms reporting positions valued at approximately $174.34M based on SEC Form 13F filings for the quarter ended June 30, 2026.

Bill & Melinda Gates Foundation Trust is the largest disclosed holder, reporting approximately $159.58M in WST holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Bill & Melinda Gates Foundation Trust representing the majority of disclosed value.

Recent insider activity includes 4 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.