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4

Changes in Ownership

CIENA CORP Filed 2010-12-21 Acc 0001209191-10-061978

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4 Changes in Ownership , xslF345X03/doc4.xml

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2010-12-23 4 Changes in Ownership
2010-12-23 4 Changes in Ownership
2010-12-23 4 Changes in Ownership
2010-12-22 10-K Annual Report
2010-12-21 4 Changes in Ownership
2010-12-21 4 Changes in Ownership
2010-12-16 4 Changes in Ownership

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