West Pharmaceutical Services, Inc.

West Pharmaceutical Services, Inc. is a US maker of drug packaging and delivery systems headquartered in Exton, Pennsylvania; its roots go back to 1923. Its shares trade on the NYSE under the ticker WST and are included in S&P's broad-based US stock index. The company does not make medicines; it supplies the components needed to store and administer injectable drugs safely.

West's products notably include elastomer stoppers, plungers and sealing systems used in vials and syringes. It also develops drug delivery systems such as auto-injectors and wearable delivery devices. The company is tracked in two main areas: the Proprietary Products segment sells its own branded components to biologics, generics and pharmaceutical firms, while the Contract-Manufactured Products segment makes devices and components on behalf of customers. Because the products are part of pharmaceutical firms' regulatory approval processes, customer relationships are long-lasting.

Those following West stock usually watch developments in the injectable and biologic drug market, customer inventory movements and approvals of new delivery devices. On the WST page at Lzzo.com the price is shown in US dollars, and the page also includes a price chart and technical indicators.