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SEC EDGAR
EDGAR
CIENA CORP
Telephone & Telegraph Apparatus
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HANOVER, MD
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FY end 10/31
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CIK 936395
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Recent SEC filings
Showing 20
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4
2026-05-04
PRIMARY DOCUMENT
4
2026-04-17
PRIMARY DOCUMENT
4
2026-04-17
PRIMARY DOCUMENT
4
2026-04-17
PRIMARY DOCUMENT
4
2026-04-16
PRIMARY DOCUMENT
4
2026-04-03
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
4
2026-04-03
PRIMARY DOCUMENT
4
2026-04-03
PRIMARY DOCUMENT
8-K
2026-03-31
8-K
4
2026-03-31
PRIMARY DOCUMENT
4
2026-03-30
PRIMARY DOCUMENT
4
2026-03-30
PRIMARY DOCUMENT
4
2026-03-30
PRIMARY DOCUMENT
4
2026-03-30
PRIMARY DOCUMENT
4
2026-03-30
PRIMARY DOCUMENT
4
2026-03-30
PRIMARY DOCUMENT
4
2026-03-30
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
4
2026-03-30
PRIMARY DOCUMENT
4
2026-03-25
PRIMARY DOCUMENT
4
2026-03-24
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES