BlackRock, Inc.

Position in WST — West Pharmaceutical Services Inc

CIK 2012383 New York, NY

Position in WST

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$1,713,553,988

-$102,297,089 QoQ

Shares Held

6,836,714

+3.6% QoQ

Ownership

9.68%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2024

7 quarters on record

Voting authority Sole 91.27399508009258.ToString("F0")% Shared 0.ToString("F0")% None 8.72600491990743.ToString("F0")%

Healthcare · as of Mar 31, 2026

BlackRock, Inc. holds $34,517,060,298 across 47 Medical Instruments & Supplies names. WST ranks #4 (5.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ISRG	Intuitive Surgical Inc	30,075,905	$13,864,691,433
2	BDX	Becton Dickinson & Co	26,153,411	$4,112,100,799
3	RMD	Resmed Inc	12,094,023	$2,714,866,272
4	WST	West Pharmaceutical Services Inc This page	6,836,714	$1,713,553,988
5	HOLX	HOLOGIC INC	22,520,444	$1,702,320,350
6	BAX	Baxter International Inc	79,400,664	$1,333,931,149
7	COO	Cooper Companies, Inc.	16,618,129	$1,188,196,218
8	ATR	Aptargroup, Inc.	6,083,518	$766,644,930

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,713,553,988	6,836,714	+3.6%	Shares	Sole	2026-05-13
2025-12-31	$1,815,851,077	6,599,735	+2.2%	Shares	Sole	2026-02-12
2025-09-30	$1,693,566,008	6,455,861	-2.3%	Shares	Sole	2025-11-12
2025-06-30	$1,445,156,926	6,604,922	-4.7%	Shares	Sole	2025-08-12
2025-03-31	$1,551,515,031	6,930,119	-7.0%	Shares	Sole	2025-05-02
2024-12-31	$2,440,557,835	7,450,720	+2.4%	Shares	Sole	2025-02-07
2024-09-30	$2,184,336,047	7,277,239	—	Shares	Sole	2024-11-13
No filing history on record for this holder in this stock.