Mks Instruments Inc (MKSI)

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Institutional Investors' Holdings

Filing Period: Filing is Ongoing

No.	Name	Shares	Value	% Port
1.	Vanguard Group Inc	7,450,615	$597,166,792	0.01%
2.	Blackrock, Inc.	7,066,707	$566,396,560	0.01%
3.	Victory Capital Management Inc	3,388,639	$271,599,417	0.28%
4.	Madison Asset Management, Llc	1,428,143	$114,465,661	1.28%
5.	Cooke & Bieler Lp	1,038,945	$83,271,442	0.83%