Employee Count History - Ciena Corporation
Historical employee count data from SEC filings.
Workforce Trend Analysis
Employee Count History
SEC Filing History
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| Filing Date | Period | Employee Count | Form Type | YoY Change |
|---|---|---|---|---|
| Dec 12, 2025 | Nov 1, 2025 | 9,080 | 10-K | +4.89% |
| Dec 20, 2024 | Nov 2, 2024 | 8,657 | 10-K | +2.05% |
| Dec 15, 2023 | Oct 28, 2023 | 8,483 | 10-K | +5.00% |
| Dec 16, 2022 | Oct 29, 2022 | 8,079 | 10-K | +11.57% |
| Dec 17, 2021 | Oct 30, 2021 | 7,241 | 10-K | +2.97% |
| Dec 18, 2020 | Oct 31, 2020 | 7,032 | 10-K | +10.17% |
Dec 20, 2019 | Oct 31, 2019 | — | — | — |
Dec 21, 2018 | Oct 31, 2018 | — | — | — |
Dec 22, 2017 | Oct 31, 2017 | — | — | — |
Dec 21, 2016 | Oct 31, 2016 | — | — | — |
Dec 21, 2015 | Oct 31, 2015 | — | — | — |
Dec 19, 2014 | Nov 1, 2014 | — | — | — |
Dec 20, 2013 | Oct 31, 2013 | — | — | — |
Dec 21, 2012 | Oct 31, 2012 | — | — | — |
Dec 22, 2011 | Oct 31, 2011 | — | — | — |
Dec 22, 2010 | Oct 31, 2010 | — | — | — |
Dec 22, 2009 | Oct 31, 2009 | — | — | — |
Dec 23, 2008 | Oct 31, 2008 | — | — | — |
Dec 27, 2007 | Oct 31, 2007 | — | — | — |
Jan 10, 2007 | Oct 31, 2006 | — | — | — |
Jan 12, 2006 | Oct 31, 2005 | — | — | — |
Dec 9, 2004 | Oct 31, 2004 | — | — | — |
Dec 11, 2003 | Oct 31, 2003 | — | — | — |
Dec 12, 2002 | Oct 31, 2002 | — | — | — |
Dec 13, 2001 | Oct 31, 2001 | — | — | — |
Dec 7, 2000 | Oct 30, 2000 | — | — | — |
Dec 10, 1999 | Oct 31, 1999 | — | — | — |
Dec 10, 1998 | Oct 31, 1998 | — | — | — |
Dec 10, 1997 | Oct 31, 1997 | — | — | — |