Northern Trust Corp (NTRS)

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Institutional Investors' Holdings

Filing Period: Filing is Ongoing

No.	Name	Shares	Value	% Port
1.	Vanguard Group Inc	22,405,202	$2,210,273,177	0.04%
2.	Blackrock, Inc.	15,366,789	$1,515,933,723	0.03%
3.	Massachusetts Financial Services Co	7,850,088	$774,411,181	0.26%
4.	Primecap Management Co	6,523,009	$643,494,842	0.53%
5.	Goldman Sachs Group Inc	4,211,983	$415,512,131	0.07%