Ciena CIEN
Ciena is the 251st largest S&P 500 company by market cap, worth $45.4 billion. It joined the S&P 500 in the week of 13 Feb 2026. 9 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 8 other officers are on file. At 30 Jun 2026, Fidelity (FMR) was its largest institutional holder, with 13.5% of the company.
- CEO
- Gary B. Smith
- Sector
- Information Technology
- Sub-industry
- Communications Equipment
- Headquarters
- Hanover, Maryland
- Founded
- 1992
- More
- Wikipedia
- Market cap
- $45.4B
- 251st largest, 23 Oct 2026 close
- Price to sales
- 9.5
- Market cap over revenue
- Market cap per employee
- $5.0M
- Market cap over employees
- Connections
- 5
- S&P 500 companies sharing a director or officer
Largest institutional holders
Each fund group's share of Ciena. Where a company has several share classes, the share is of its total value.
13F filings for the quarter to 30 Jun 2026
Board and officers
5 people here also hold roles at other S&P 500 companies.
Roles filed up to 30 Sep 2026
| Name | Title |
|---|---|
| Directors (9) | |
| Gary B. SmithPresident & CEO | |
| Hassan AhmedDirectorLast filed 30 Mar 2026 | |
| Bruce L. ClaflinDirectorAlso at Idexx Laboratories | |
| Lawton W. FittDirectorAlso at ProgressiveLast filed 30 Mar 2026 | |
| Patrick GallagherDirectorLast filed 30 Mar 2026 | |
| Devinder KumarDirectorAlso at SandiskLast filed 30 Mar 2026 | |
| Thomas Michael NevensDirectorAlso at NetApp | |
| Joanne Beth OlsenDirectorAlso at Keysight TechnologiesLast filed 30 Mar 2026 | |
| Mary G. PumaDirectorLast filed 30 Mar 2026 | |
| Officers (8) | |
| Marc D. GraffEVP & Chief Financial OfficerLast filed 22 Sep 2026 | |
| Joseph CumelloEVP & General MgrLast filed 29 Sep 2026 | |
| Dino DiPernaEVP & Chief R&D OfficerLast filed 22 Sep 2026 | |
| Brodie GageEVP & Chief Product &Last filed 22 Sep 2026 | |
| Grant HoffmanEVP & Chief SupplyLast filed 22 Sep 2026 | |
| Sheela KosarajuEVP & Chief Legal OfficerLast filed 22 Sep 2026 | |
| Jason PhippsEVP & Chief Customer OfficerLast filed 22 Sep 2026 | |
| David M. RothensteinEVP & Chief Strategy OfficerLast filed 22 Sep 2026 | |
Companies that share people with Ciena
Each person's title here, then at the other company.
- Idexx Laboratories IDXX
- Bruce L. Claflin: Director here, Director there
- Keysight Technologies KEYS
- Joanne Beth Olsen: Director here, Director there
- NetApp NTAP
- Thomas Michael Nevens: Director here, Director there
- Progressive PGR
- Lawton W. Fitt: Director here, Director there
- Sandisk SNDK
- Devinder Kumar: Director here, Director there
Ciena's market cap since December 2008
Marked weeks are changes in the share count, such as a merger, not market moves.
Weekly, up to 23 Oct 2026
| Week ending | Market cap |
|---|---|
| 23 Oct 2026 | $45.4B |
| 26 Dec 2025 | $34.0B |
| 27 Dec 2024 | $12.3B |
| 29 Dec 2023 | $6.5B |
| 30 Dec 2022 | $7.6B |
| 31 Dec 2021 | $11.9B |
| 25 Dec 2020 | $8.2B |
| 27 Dec 2019 | $6.6B |
| 28 Dec 2018 | $5.2B |
| 29 Dec 2017 | $3.0B |
| 30 Dec 2016 | $3.4B |
| 25 Dec 2015 | $2.8B |
| 26 Dec 2014 | $2.1B |
| 27 Dec 2013 | $2.5B |
| 28 Dec 2012 | $1.5B |
| 30 Dec 2011 | $1.2B |
| 31 Dec 2010 | $2.0B |
| 25 Dec 2009 | $1.0B |
| 26 Dec 2008 | $560M |
Download Ciena's data as JSON, with the weekly market caps in billions of dollars from 5 Dec 2008.
Workforce
Headcount at 1 Nov 2025
- Employees
- 9,080
Our technology solutions are developed, marketed, sold, and supported by our global workforce of 9,080 employees as of November 1, 2025, approximately 98% of whom were full-time employees.
Insider trades
Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.
Trades from 30 Sep 2025 to 30 Sep 2026
Directors and officers sold $99.3 million of stock in 73 sales and made no open-market purchases in the 12 months to 30 Sep 2026.
| Date | Person | Value |
|---|---|---|
| 25 Sep 2026Sale | Joseph CumelloEVP & General Mgr | $569K |
| 24 Sep 2026Sale | Bruce L. ClaflinDirector | $1.0M |
| 23 Sep 2026Sale | Thomas Michael NevensDirector | $1.3M |
| 16 Sep 2026Sale | Dino DiPernaEVP & Chief R&D Officer | $87K |
| 15 Sep 2026Sale | Gary B. SmithPresident & CEO | $975K |
| 15 Sep 2026Sale | David M. RothensteinEVP & Chief Strategy Officer | $826K |
| 15 Sep 2026Sale | Brodie GageEVP & Chief Product & | $390K |
| 15 Sep 2026Sale | Dino DiPernaEVP & Chief R&D Officer | $81K |
| 1 Sep 2026Sale | Gary B. SmithPresident & CEO | $1.1M |
| 17 Aug 2026Sale | Gary B. SmithPresident & CEO | $1.3M |
Showing 10 of 73 trades
Trades by members of Congress and officials
Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.
Trades from 20 Oct 2023 to 20 Oct 2026
5 people disclosed 9 purchases and 7 sales of Ciena stock since October 2023.
| Date | Member or official | Amount |
|---|---|---|
| 29 May 2026 | Gilbert CisnerosHouse, D-CA 路 Bought | $1K to $15K |
| 14 May 2026 | Gilbert CisnerosHouse, D-CA 路 Bought | $1K to $15K |
| 27 Apr 2026 | Donald J TrumpPresident 路 Sold | $15K to $50K |
| 30 Mar 2026 | Alan ArmstrongSenate, R-OK 路 Bought | $1K to $15K |
| 27 Mar 2026 | Alan ArmstrongSenate, R-OK 路 Bought | $1K to $15K |
| 17 Mar 2026 | Donald J TrumpPresident 路 Bought | $100K to $250K |
| 17 Mar 2026 | Donald J TrumpPresident 路 Bought | $1K to $15K |
| 31 Oct 2025 | Lisa McClainHouse, R-MI 路 Sold | $1K to $15K |
| 30 Oct 2025 | Lisa McClainHouse, R-MI 路 Bought | $1K to $15K |
| 30 Oct 2025 | Lisa McClainHouse, R-MI 路 Sold | $1K to $15K |
Showing 10 of 16 trades
Not on file: no WARN layoff notices under its own name since October 2023.