LOOMIS SAYLES & CO L P

Position in WST — West Pharmaceutical Services Inc

CIK 312348 BOSTON, MA

Position in WST

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$546,039

+$541,462 QoQ

Shares Held

1,521

+11600.0% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#496

of 827 holders

Holding Since

Mar 2020

12 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

LOOMIS SAYLES & CO L P holds $694,039,405 across 4 Medical Instruments & Supplies names. WST ranks #4 (0.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ISRG	Intuitive Surgical Inc	1,656,156	$658,620,117
2	RGEN	Repligen Corp	148,676	$20,285,353
3	AVTR	Avantor, Inc.	1,473,525	$14,587,896
4	WST	West Pharmaceutical Services Inc This page	1,521	$546,039

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$546,039	1,521	+11600.0%	Shares	Defined	2026-08-14
2023-12-31	$4,577	13	-74.0%	Shares	Defined	2024-02-13
2022-12-31	$11,767	50	+19.0%	Shares	Defined	2023-02-10
2022-09-30	$10,335	42	+740.0%	Shares	Defined	2022-11-14
2022-06-30	$1,511	5	-64.3%	Shares	Defined	2022-08-05
2022-03-31	$5,749	14	-60.0%	Shares	Defined	2022-05-13
2021-09-30	$14,858	35	-30.0%	Shares	Defined	2021-11-12
2021-03-31	$14,089	50	+25.0%	Shares	Defined	2021-05-17
2020-12-31	$11,332	40	-99.9%	Shares	Defined	2021-02-12
2020-09-30	$20,628,496	75,040	-46.3%	Shares	Defined	2020-11-12
2020-06-30	$31,762,227	139,817	+8.4%	Shares	Defined	2020-08-14
2020-03-31	$19,637,661	128,983	—	Shares	Defined	2020-05-15
No filing history on record for this holder in this stock.