Alliant Energy Corp (LNT)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Vanguard Group Inc	32,663,708	$1,931,731,691	0.03%
2.	Blackrock, Inc.	24,578,093	$1,453,548,372	0.02%
3.	State Street Corp	16,372,124	$968,249,292	0.03%
4.	Victory Capital Management Inc	10,806,268	$639,082,689	0.62%
5.	Henderson Group Plc	10,768,159	$636,829,374	0.32%