CIK 936395 · Telephone & Telegraph Apparatus

Ciena (CIEN)

75 filings in EDGAR's recent window. Latest: 10-K 2025-11-01, 10-Q 2026-08-01, 8-K 2026-09-03.

What changed in the latest 10-KNew, removed and reworded risk factor headings in the 2025-11-01 10-K against the year before, then every item sentence by sentence.Risk factorsEvery Item 1A heading in the 2025-11-01 10-K, grouped as filed, each linked to its text.

10-K

PeriodFiledDocumentEDGAR
2025-11-012025-12-1210-Koriginal
2024-11-022024-12-2010-Koriginal
2023-10-282023-12-1510-Koriginal
2022-10-292022-12-1610-Koriginal
2021-10-302021-12-1710-Koriginal

10-Q

PeriodFiledDocumentEDGAR
2026-08-012026-09-0310-Qoriginal
2026-05-022026-06-0410-Qoriginal
2026-01-312026-03-0510-Qoriginal
2025-08-022025-09-0410-Qoriginal
2025-05-032025-06-0510-Qoriginal
2025-02-012025-03-1210-Qoriginal
2024-07-272024-09-0410-Qoriginal
2024-04-272024-06-0610-Qoriginal
2024-01-272024-03-0710-Qoriginal
2023-07-292023-09-0610-Qoriginal
2023-04-292023-06-0710-Qoriginal
2023-01-282023-03-0810-Qoriginal
2022-07-302022-09-0710-Qoriginal
2022-04-302022-06-0810-Qoriginal
2022-01-292022-03-0910-Qoriginal

8-K

PeriodFiledDocumentEDGAR
2026-09-032026-09-038-Koriginal
2026-06-082026-06-118-Koriginal
2026-06-082026-06-088-Koriginal
2026-06-042026-06-048-Koriginal
2026-03-262026-03-318-Koriginal
2026-03-052026-03-058-Koriginal
2025-12-112025-12-118-Koriginal
2025-11-302025-12-048-Koriginal
2025-10-072025-10-078-Koriginal
2025-09-222025-09-228-Koriginal
2025-09-042025-09-048-Koriginal
2025-06-182025-06-188-Koriginal
2025-06-052025-06-058-Koriginal
2025-03-272025-04-018-Koriginal
2025-03-112025-03-118-Koriginal
2025-01-172025-01-218-Koriginal
2024-12-122024-12-128-Koriginal
2024-10-022024-10-028-Koriginal
2024-09-042024-09-048-Koriginal
2024-06-062024-06-068-Koriginal
2024-04-222024-04-238-Koriginal
2024-03-212024-03-268-Koriginal
2024-03-072024-03-078-Koriginal
2023-12-072023-12-078-Koriginal
2023-10-242023-10-258-Koriginal
2023-10-022023-10-038-Koriginal
2023-08-312023-08-318-Koriginal
2023-06-062023-06-068-Koriginal
2023-04-062023-04-068-Koriginal
2023-03-302023-04-038-Koriginal
2023-03-062023-03-068-Koriginal
2023-02-102023-02-158-Koriginal
2023-01-262023-01-278-Koriginal
2023-01-242023-01-248-Koriginal
2023-01-192023-01-238-Koriginal
2022-12-082022-12-088-Koriginal
2022-11-222022-11-228-Koriginal
2022-09-012022-09-018-Koriginal
2022-06-022022-06-028-Koriginal
2022-03-312022-04-208-Koriginal

API

GET https://filings.tools/api/v1/filings?ticker=CIEN
GET https://filings.tools/api/v1/filings/936395-000162828025056698/sections?format=md