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CIENA CORP (CIEN) Ownership Summary
Institutional Holders
Total Number of Holders 536
% of Shares Outstanding 97.01%
Total Shares Held 140,114,764
Total Value of Holdings $7,908,077,280.16
Net Activity 627,502
 
Top 5 Holders Shares Held Shares Changed
FMR LLC 21,555,659 2,419,371
BLACKROCK INC. 15,609,770 230,877
VANGUARD GROUP INC 14,975,886 (41,594)
BARROW HANLEY MEWHINNEY & STRAUSS LLC 5,397,560 2,943,146
BNP PARIBAS ASSET MANAGEMENT HOLDING S.A. 4,947,856 (34,362)

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Insider Trades
 Last 3 mos.Last 12 mos.
Number of Insider Trades647
Number of Buys00
Number of Sells647
Net Activity (12,780) (221,851)
 
Top 5 TradesShares Traded Date
CUMELLO JOSEPH1,2898/15/2024
ROTHENSTEIN DAVID M3,5008/15/2024
CUMELLO JOSEPH1,2897/15/2024
ROTHENSTEIN DAVID M3,5007/15/2024
DIPERNA DINO4907/1/2024

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5% Ownership (SC 13D & SC 13G Filings)
View Form   Filer  Received  Period 
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View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   VANGUARD GROUP INC  02/13/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in Original Format  SC 13G/A   FMR LLC  02/12/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in Original Format  SC 13G/A   FMR LLC  02/09/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   BLACKROCK INC.  01/30/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   VANGUARD GROUP INC  06/09/23   File this document to a folder.