CIEN

Ciena CorporationNYSE

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24h value$1.22MOpen interest$367.5KFunding0.0000%ciena.com ↗

Key filings

Earnings, material events (8-K), quarterly and annual reports, ownership reports

2026-09-0310-QQuarterly reportSource ↗
2026-09-03SCHEDULE 13G/A5%+ ownership (passive) (Amended)Source ↗
2026-09-038-KMaterial event report · Earnings releaseSource ↗
2026-08-06SCHEDULE 13G/A5%+ ownership (passive) (Amended)Source ↗
2026-06-118-KMaterial event report · Material agreement, New financial obligation, Unregistered equity sale, Other eventsSource ↗
2026-06-088-KMaterial event report · Other eventsSource ↗
2026-06-0410-QQuarterly reportSource ↗
2026-06-048-KMaterial event report · Earnings releaseSource ↗
2026-04-29SCHEDULE 13G5%+ ownership (passive)Source ↗
2026-04-29SCHEDULE 13G5%+ ownership (passive)Source ↗
2026-04-24SCHEDULE 13G/A5%+ ownership (passive) (Amended)Source ↗
2026-03-318-KMaterial event report · Shareholder vote resultsSource ↗
2026-03-26SCHEDULE 13G/A5%+ ownership (passive) (Amended)Source ↗
2026-03-0510-QQuarterly reportSource ↗
2026-03-058-KMaterial event report · Earnings releaseSource ↗

Filings are in English. Form and item labels are only a classification to help you navigate and do not interpret the filing.

Stock transactions by officers and major holders (Form 4) and notices of proposed sale (Form 144)