Amphastar Pharmaceuticals Inc. (AMPH)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Blackrock Inc.	6,037,158	$373,398,223	0%
2.	Federated Investors Inc	3,272,761	$202,420,268	0.5%
3.	Vanguard Group Inc	2,815,596	$174,144,612	0%
4.	Neuberger Berman Group Llc	1,693,002	$104,712,174	0.09%
5.	State Street Corp	1,471,137	$90,989,823	0%