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Home > Insider Trading > Ciena Corp

Ciena Corp (CIEN)

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Institutional Investors' Holdings

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No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	17,067,198	$1,388,075,215	0.03%
2.	Vanguard Group Inc	15,088,445	$1,227,143,233	0.02%
3.	Jpmorgan Chase & Co	5,243,053	$426,420,063	0.03%
4.	Barrow Hanley Mewhinney & Strauss Llc	4,252,811	$345,881,118	1.17%
5.	William Blair Investment Management, Llc	2,708,540	$220,285,558	0.58%