West Pharmaceutical Services Inc (WST)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Vanguard Group Inc	9,539,173	$2,624,608,060	0.04%
2.	Blackrock, Inc.	6,599,735	$1,815,851,080	0.03%
3.	State Street Corp	3,252,020	$894,760,783	0.03%
4.	Artisan Partners Limited Partnership	2,850,401	$784,259,419	1.17%
5.	Bank Of New York Mellon Corp	2,662,035	$732,432,196	0.13%