Cite Filings / CIEN / 0001699192-18-000002

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4

Changes in Ownership

CIENA CORP Filed 2018-02-20 Acc 0001699192-18-000002

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4 Changes in Ownership , xslF345X03/edgardoc.xml

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2018-02-23 4 Changes in Ownership
2018-02-22 4 Changes in Ownership
2018-02-20 4 Changes in Ownership
2018-02-20 4 Changes in Ownership
2018-02-20 4 Changes in Ownership
2018-02-20 DEF 14A Proxy Statement
2018-02-20 DEFA14A Proxy Materials

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