Acm Research Inc. (ACMR)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	4,212,456	$98,318,723	0%
2.	Vanguard Group Inc	4,055,346	$94,651,776	0%
3.	Mitsubishi Ufj Trust & Banking Corp	1,653,235	$38,586,505	0.1%
4.	Invesco Ltd.	1,339,102	$31,254,641	0.01%
5.	State Street Corp	1,237,323	$28,879,119	0%