Asset Management One Co., Ltd.

Position in WST — West Pharmaceutical Services Inc

CIK 1068855 TOKYO, M0

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Position in WST

as of Jun 30, 2026 · filed Jul 28, 2026 Compact

Position Value

$34,578,162

+$15,831,042 QoQ

Shares Held

96,318

+28.8% QoQ

Ownership

0.137%

of shares outstanding

% of Portfolio

0.10%

of 13F equity value

Holder Rank

#94

of 827 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in WST Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Jun 30, 2026

Asset Management One Co., Ltd. holds $161,693,574 across 9 Medical Instruments & Supplies names. WST ranks #2 (21.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ISRG	Intuitive Surgical Inc	194,218	$77,236,614
2	WST	West Pharmaceutical Services Inc This page	96,318	$34,578,162
3	BDX	Becton Dickinson & Co	141,418	$21,400,785
4	RMD	Resmed Inc	65,660	$12,795,820
5	COO	Cooper Companies, Inc.	88,501	$6,346,406
6	MDLN	Medline Inc.	139,262	$5,492,493
7	ALGN	Align Technology Inc	17,380	$2,931,310
8	SOLV	Solventum Corp	6,000	$462,900

All Filings in WST

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26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$34,578,162	96,318	+28.8%	Shares	Defined	2026-07-28
2026-03-31	$18,747,120	74,797	-40.2%	Shares	Defined	2026-05-08
2025-12-31	$34,393,600	125,004	+79.2%	Shares	Defined	2026-01-27
2025-09-30	$18,304,075	69,775	+16.7%	Shares	Defined	2025-10-22
2025-06-30	$13,076,800	59,766	+0.2%	Shares	Defined	2025-07-31
2025-03-31	$13,357,800	59,665	+27.3%	Shares	Defined	2025-04-23
2024-12-31	$15,349,461	46,860	+11.4%	Shares	Defined	2025-01-30
2024-09-30	$12,621,127	42,048	+43.5%	Shares	Defined	2024-10-30
2024-06-30	$9,652,115	29,303	-2.2%	Shares	Defined	2024-07-18
2024-03-31	$11,861,011	29,974	-2.2%	Shares	Defined	2024-05-02
2023-12-31	$10,795,647	30,659	-5.9%	Shares	Defined	2024-01-24
2023-09-30	$12,224,341	32,580	-1.6%	Shares	Defined	2023-10-19
2023-06-30	$12,668,171	33,122	+4.5%	Shares	Defined	2023-07-31
2023-03-31	$10,985,177	31,706	+4.0%	Shares	Defined	2023-04-25
2022-12-31	$7,176,998	30,495	-9.8%	Shares	Defined	2023-02-06
2022-09-30	$8,315,043	33,790	-8.7%	Shares	Defined	2022-11-04
2022-06-30	$11,187,085	36,998	-30.9%	Shares	Defined	2022-07-29
2022-03-31	$21,982,842	53,524	+2.6%	Shares	Defined	2022-05-13
2021-12-31	$24,461,685	52,156	+14.3%	Shares	Defined	2022-02-09
2021-09-30	$19,365,392	45,615	-3.1%	Shares	Defined	2021-11-02
2021-06-30	$16,899,605	47,061	+32.1%	Shares	Defined	2021-08-03
2021-03-31	$10,035,876	35,616	-1.1%	Shares	Defined	2021-05-14
2020-12-31	$10,201,426	36,008	-0.5%	Shares	Defined	2021-02-12
2020-09-30	$9,950,830	36,198	-2.1%	Shares	Defined	2020-11-13
2020-06-30	$8,397,111	36,964	-5.3%	Shares	Defined	2020-08-14
2020-03-31	$5,939,729	39,013	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.