Interdigital Inc. (IDCC)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	4,245,425	$951,951,710	0.02%
2.	Vanguard Group Inc	3,371,634	$756,021,492	0.01%
3.	Boston Partners	1,197,561	$271,451,431	0.3%
4.	State Street Corp	1,022,376	$229,247,370	0.01%
5.	Disciplined Growth Investors Inc	960,632	$215,402,513	4.12%