    <SEC-DOCUMENT>0001558370-25-003467-index.html : 20250321
    <SEC-HEADER>0001558370-25-003467.hdr.sgml : 20250321
    <ACCEPTANCE-DATETIME>20250321160925
    ACCESSION NUMBER:		0001558370-25-003467
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20241231
    FILED AS OF DATE:		20250321
    DATE AS OF CHANGE:		20250321
    EFFECTIVENESS DATE:		20250321

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			WEST PHARMACEUTICAL SERVICES INC
    		CENTRAL INDEX KEY:			0000105770
    		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
    		ORGANIZATION NAME:           	08 Industrial Applications and Services
    		IRS NUMBER:				231210010
    		STATE OF INCORPORATION:			PA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-08036
    		FILM NUMBER:		25760560

    	BUSINESS ADDRESS:
    		STREET 1:		530 HERMAN O. WEST DRIVE
    		CITY:			EXTON
    		STATE:			PA
    		ZIP:			19341
    		BUSINESS PHONE:		6105942900

    	MAIL ADDRESS:
    		STREET 1:		530 HERMAN O. WEST DRIVE
    		CITY:			EXTON
    		STATE:			PA
    		ZIP:			19341

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	WEST CO INC
    		DATE OF NAME CHANGE:	19990405
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>wst-20241231xars.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: wst-20241231xars.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>