Affiliated Managers Group Inc. (AMG)

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Institutional Investors' Holdings

Filing Period: Filing is Ongoing

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	2,822,700	$555,422,730	0.01%
2.	Vanguard Group Inc	2,812,114	$553,339,671	0.01%
3.	Boston Partners	1,133,127	$223,011,102	0.25%
4.	Dimensional Fund Advisors Lp	676,225	$133,064,514	0.03%
5.	Geode Capital Management, Llc	504,358	$99,257,554	0.01%