When did WST join the S&P 500?

West Pharmaceutical Services joined the S&P 500 index on 2020-05-22.

What sector is WST in?

WST is in the Health Care sector, Health Care Supplies industry.

WST — West Pharmaceutical Services

Name: WST Institutional Holdings (13F) — 2026Q1
Creator: SEC EDGAR
License: https://www.sec.gov/data

Health Care Supplies · Health Care

West Pharmaceutical Services, Inc. manufactures and sells pharmaceutical drugs, biologics, vaccines and consumer healthcare products. It operates through the following segments: Proprietary Products and Contract Manufacturing Products. The Proprietary Products segment provides patented packaging, sealing and drug delivery products as well as analytical laboratory services to biotech, generic and pharmaceutical drug customers. The Contract Manufacturing Products segment is a fully integrated business focused on the design, manufacture and automated assembly of complex devices, primarily serving pharmaceutical, diagnostic and medical device customers.

Key Facts

Status	Active
Sector	Health Care
Industry	Health Care Supplies
Joined	2020-05-22
Tenure	6 yrs

S&P 500 Timeline

2020-05-22Joined S&P 500

Industry Peers

ALGN COO

Sector Peers

A ABBV ABT ALGN AMGN BAX BDX BIIB BMY BSX

Institutional Holdings (13F)

1 institutions hold WST, totaling 72K shares ($2M) · As of 2026Q1

Rank	Institution	Shares	Value
1	Henshaw Capital LLC	72K	$2M

View all holders →

Data source: Wikipedia · CC BY-SA 4.0 · SEC EDGAR 13F · Updated 2026-07-10