RHUMBLINE ADVISERS

Position in WST — West Pharmaceutical Services Inc

CIK 1115418 BOSTON, MA

Position in WST

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$64,972,655

-$9,918,251 QoQ

Shares Held

259,227

-4.8% QoQ

Ownership

0.367%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 43.88663217951834.ToString("F0")% Shared 0.ToString("F0")% None 56.11336782048166.ToString("F0")%

Healthcare · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $782,194,030 across 37 Medical Instruments & Supplies names. WST ranks #4 (8.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ISRG	Intuitive Surgical Inc	654,353	$301,650,189
2	BDX	Becton Dickinson & Co	462,757	$72,759,283
3	RMD	Resmed Inc	323,371	$72,590,322
4	WST	West Pharmaceutical Services Inc This page	259,227	$64,972,655
5	HOLX	HOLOGIC INC	564,642	$42,681,288
6	COO	Cooper Companies, Inc.	381,434	$27,272,531
7	ATR	Aptargroup, Inc.	199,430	$25,132,168
8	ALGN	Align Technology Inc	128,481	$22,025,497

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$64,972,655	259,227	-4.8%	Shares	Sole	2026-05-12
2025-12-31	$74,890,906	272,192	+12.0%	Shares	Sole	2026-02-13
2025-09-30	$63,730,974	242,942	-0.3%	Shares	Sole	2025-11-06
2025-06-30	$53,325,936	243,720	+2.9%	Shares	Sole	2025-08-12
2025-03-31	$53,014,112	236,797	+8.1%	Shares	Sole	2025-05-29
2024-12-31	$71,763,810	219,086	+0.0%	Shares	Sole	2025-05-29
2024-09-30	$65,751,248	219,054	+0.6%	Shares	Sole	2024-11-12
2024-06-30	$71,744,106	217,809	+2.3%	Shares	Sole	2024-08-01
2024-03-31	$84,281,085	212,987	+3.4%	Shares	Sole	2024-05-09
2023-12-31	$72,506,085	205,913	-1.7%	Shares	Sole	2024-02-08
2023-09-30	$78,582,106	209,435	-0.5%	Shares	Sole	2023-11-09
2023-06-30	$80,525,616	210,541	+1.1%	Shares	Sole	2023-08-08
2023-03-31	$72,147,526	208,236	-0.8%	Shares	Sole	2023-05-11
2022-12-31	$49,406,084	209,926	+3.9%	Shares	Sole	2023-02-14
2022-09-30	$49,743,349	202,143	+2.4%	Shares	Sole	2022-11-10
2022-06-30	$59,687,838	197,400	+6.0%	Shares	Sole	2022-08-11
2022-03-31	$76,473,380	186,198	+1.5%	Shares	Sole	2022-05-12
2021-12-31	$86,072,246	183,519	+16.3%	Shares	Sole	2022-02-10
2021-09-30	$66,970,760	157,749	-1.4%	Shares	Sole	2021-11-12
2021-06-30	$57,444,867	159,969	-3.1%	Shares	Sole	2021-08-05
2021-03-31	$46,534,558	165,145	-1.9%	Shares	Sole	2021-05-06
2020-12-31	$47,691,555	168,337	-12.8%	Shares	Sole	2021-02-10
2020-09-30	$53,081,815	193,095	-12.5%	Shares	Sole	2020-11-12
2020-06-30	$50,151,185	220,765	-14.4%	Shares	Sole	2020-08-13
2020-03-31	$39,259,032	257,859	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.