FRED ALGER MANAGEMENT, LLC

Position in WST — West Pharmaceutical Services Inc

CIK 3520 NEW YORK, NY

Position in WST

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$9,008,502

-$4,232,335 QoQ

Shares Held

35,942

-25.3% QoQ

Ownership

0.051%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Mar 31, 2026

FRED ALGER MANAGEMENT, LLC holds $259,813,459 across 6 Medical Instruments & Supplies names. WST ranks #4 (3.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ISRG	Intuitive Surgical Inc	386,739	$178,282,810
2	RGEN	Repligen Corp	434,774	$51,225,072
3	BLFS	Biolife Solutions Inc	1,079,935	$20,605,159
4	WST	West Pharmaceutical Services Inc This page	35,942	$9,008,502
5	WRBY	Warby Parker Inc.	17,797	$374,982
6	ICUI	Icu Medical Inc/De	2,454	$316,934

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$9,008,502	35,942	-25.3%	Shares	Sole	2026-05-15
2025-12-31	$13,240,837	48,124	+143.9%	Shares	Sole	2026-02-17
2025-09-30	$5,176,820	19,734	+25.9%	Shares	Sole	2025-11-14
2025-06-30	$3,429,033	15,672	-2.5%	Shares	Sole	2025-08-14
2025-03-31	$3,596,856	16,066	-13.7%	Shares	Sole	2025-05-16
2024-12-31	$6,099,822	18,622	+32.1%	Shares	Sole	2025-02-14
2024-09-30	$4,230,455	14,094	-3.6%	Shares	Sole	2024-11-14
2024-06-30	$4,815,023	14,618	-71.8%	Shares	Sole	2024-08-14
2024-03-31	$20,485,115	51,768	+17.2%	Shares	Sole	2024-05-15
2023-12-31	$15,559,478	44,188	-55.3%	Shares	Sole	2024-02-14
2023-09-30	$37,071,123	98,801	+0.8%	Shares	Sole	2023-11-14
2023-06-30	$37,497,358	98,040	+41.8%	Shares	Sole	2023-08-14
2023-03-31	$23,960,479	69,156	+344.1%	Shares	Sole	2023-05-16
2022-12-31	$3,665,105	15,573	-41.7%	Shares	Sole	2023-02-14
2022-09-30	$6,574,273	26,716	+54.1%	Shares	Sole	2022-11-15
2022-06-30	$5,242,491	17,338	+394.1%	Shares	Sole	2022-08-15
2022-03-31	$1,441,181	3,509	-86.5%	Shares	Sole	2022-05-16
2021-12-31	$12,211,144	26,036	+184.2%	Shares	Sole	2022-02-14
2021-09-30	$3,889,210	9,161	0.0%	Shares	Sole	2021-11-15
2021-06-30	$3,289,715	9,161	-6.2%	Shares	Sole	2021-08-16
2021-03-31	$2,751,581	9,765	-3.4%	Shares	Sole	2021-05-17
2020-12-31	$2,863,697	10,108	-0.1%	Shares	Sole	2021-02-16
2020-09-30	$2,780,338	10,114	+44.5%	Shares	Sole	2020-11-13
2020-06-30	$1,590,190	7,000	+5934.5%	Shares	Sole	2020-08-14
2020-03-31	$17,661	116	—	Shares	Sole	2020-05-19
No filing history on record for this holder in this stock.