West Pharmaceutical Services Inc (WST)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Vanguard Group Inc	9,704,948	$2,545,899,009	0.04%
2.	Blackrock, Inc.	6,455,861	$1,693,566,022	0.03%
3.	State Street Corp	3,207,911	$841,531,293	0.03%
4.	Bank Of New York Mellon Corp	2,904,709	$761,992,358	0.14%
5.	Artisan Partners Limited Partnership	2,770,920	$726,895,444	1.03%