Armstrong World Industries Inc (AWI)

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Institutional Investors' Holdings

Filing Period: Filing is Ongoing

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	5,340,669	$752,393,424	0.02%
2.	Vanguard Group Inc	4,602,386	$648,384,141	0.01%
3.	Cooke & Bieler Lp	489,740	$68,994,571	0.69%
4.	Schwab Charles Investment Management Inc	448,065	$63,123,397	0.01%
5.	Bank Of New York Mellon Corp	370,654	$52,217,630	0.01%