CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

Pension

Position in WST — West Pharmaceutical Services Inc

CIK 1081019 WEST SACRAMENTO, CA

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Position in WST

as of Mar 31, 2026 · filed May 18, 2026 Compact

Position Value

$27,729,305

-$3,518,344 QoQ

Shares Held

110,634

-2.6% QoQ

Ownership

0.157%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in WST Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Mar 31, 2026

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $548,060,005 across 34 Medical Instruments & Supplies names. WST ranks #5 (5.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ISRG	Intuitive Surgical Inc	539,288	$248,606,375
2	BDX	Becton Dickinson & Co	473,355	$74,425,606
3	RMD	Resmed Inc	222,621	$49,973,962
4	HOLX	HOLOGIC INC	385,252	$29,121,198
5	WST	West Pharmaceutical Services Inc This page	110,634	$27,729,305
6	COO	Cooper Companies, Inc.	313,784	$22,435,556
7	SOLV	Solventum Corp	239,152	$15,616,625
8	ALGN	Align Technology Inc	79,293	$13,593,198

All Filings in WST

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$27,729,305	110,634	-2.6%	Shares	Sole	2026-05-18
2025-12-31	$31,247,649	113,570	-3.4%	Shares	Sole	2026-02-17
2025-09-30	$30,827,972	117,516	-0.1%	Shares	Sole	2025-11-14
2025-06-30	$25,725,410	117,575	-0.6%	Shares	Sole	2025-08-14
2025-03-31	$26,480,302	118,279	+0.6%	Shares	Sole	2025-05-15
2024-12-31	$38,494,851	117,520	-0.6%	Shares	Sole	2025-03-18
2024-09-30	$35,473,208	118,181	-0.0%	Shares	Sole	2025-04-04
2024-06-30	$38,940,485	118,220	+1.3%	Shares	Sole	2025-04-08
2024-03-31	$46,175,399	116,690	+0.5%	Shares	Sole	2024-05-16
2023-12-31	$40,880,779	116,099	+0.1%	Shares	Sole	2024-02-13
2023-09-30	$43,524,735	116,001	-3.7%	Shares	Sole	2023-11-14
2023-06-30	$46,084,192	120,491	-1.3%	Shares	Sole	2023-08-21
2023-03-31	$42,276,962	122,022	-0.9%	Shares	Sole	2023-05-09
2022-12-31	$28,991,589	123,185	+1.0%	Shares	Sole	2023-02-14
2022-09-30	$30,019,791	121,992	-1.2%	Shares	Sole	2022-11-21
2022-06-30	$37,351,463	123,529	+0.8%	Shares	Sole	2022-08-15
2022-03-31	$50,321,010	122,522	-5.7%	Shares	Sole	2022-05-16
2021-12-31	$60,927,213	129,906	+1.2%	Shares	Sole	2022-02-15
2021-09-30	$54,494,378	128,361	-2.5%	Shares	Sole	2021-11-15
2021-06-30	$47,288,442	131,686	-7.7%	Shares	Sole	2021-08-16
2021-03-31	$40,189,154	142,626	+1.5%	Shares	Sole	2021-05-18
2020-12-31	$39,828,569	140,583	+1.9%	Shares	Sole	2021-02-16
2020-09-30	$37,937,024	138,003	+5.2%	Shares	Sole	2020-11-17
2020-06-30	$29,786,530	131,120	+2.5%	Shares	Sole	2020-08-17
2020-03-31	$19,473,536	127,905	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.