Npk International Inc. (NR)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Ameriprise Financial Inc	7,455,944	$57,187,091	0.01%
2.	Blackrock, Inc.	6,878,584	$52,758,741	0%
3.	Dimensional Fund Advisors Lp	6,117,606	$46,920,726	0.01%
4.	Vanguard Group Inc	5,423,264	$41,596,435	0%
5.	Wasatch Advisors Inc	3,169,031	$24,306,468	0.12%