CIEN

CIENA CORP

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Technology · Communication Equipment

$338.00

−$3.29−0.96%

Delayed · 2026-09-09T20:00:00.000Z · marketstack

1 of 47tracked managers hold this· Q2 2026

Aug 10, 2026$338.00

−$49.70−12.82%over 1M

Day range8% of range

$337.16$348.00

Session

Previous close: $341.29
Open: $341.90
Volume: 1.79M
Avg volume: -
Day high: $348.00
Day low: $337.16

Fundamentals

Visualize fundamentals and more

Market cap: 48.02B
P/E ratio: 75.39
EPS (TTM): $4.48
Dividend yield: -
Beta: 1.29
Shares outstanding: 142.06M

Source SEC EDGAR · 9/10/2026

Tracked investors

As of Q2 2026 · 72 days ago · next update ~14 Nov 2026· what moved this quarter, onMeasure

1 fund manager this platform follows disclosed a position here, from quarterly SEC filings up to 45 days old; a manager may have sold since without yet having to say so.

Joel Greenblatt
Gotham Asset Management
$55.44M
0.13%of book

Manager	Position	Share of their book	Last change
Joel Greenblatt Gotham Asset Management	$55.44M	0.13%

Share price, with each quarter a tracked manager’s position changed shaded across the range it traded in.

0200400600

338

now

Q3 '24

Q4 '24

Q1 '25

Q2 '25

Q3 '25

Q4 '25

Q1 '26

Q2 '26

Hover a shaded quarter to see it moved. Who, and the range they traded in, is onBespoke

13F filings cover US-listed shares only (not cash, bonds, shorts, or private holdings) and are never a recommendation to do the same.

Risk factors, year on year

Item 1ADecember 2025 10-KDecember 2024as filed.

added: 60
dropped: 142
re-drafted: 3

Out of 67 passages in this year’s Item 1A.

New this year

Investing in our securities involves a high degree of risk. Before investing in our securities, you should consider carefully the information contained in this report, including the information in this “Risk Factors” section.

201 more passages, included withBespoke

Recent activity

18 more events, included withMeasure

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ASTSAST SpaceMobile, Inc.

Ask about CIENA CORP

The assistant answers from what CIEN has actually filed: 20 annual reports filed with the SEC, 13F positions from the 1 tracked investor who hold it and 6 funds that hold it. Every figure in a reply links to the filing it came from, so an answer can be checked rather than believed.

Pressing one answers it here, from CIEN's filings and figures. One a day without an account; a free account has its own, and no card.

See every investor holding CIENA CORP, and every quarter they moved.

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What an account lets you do with CIENA CORP

Separate the decisions from the paperwork
Every Form 4 CIEN insiders have filed, with vesting and automatic tax sales struck out: what's left is the buys and sells somebody actually chose to make.
Every filingMeasure
Watch the same stakes the professionals are watching
Every tracked position priced at the quarter it was filed and diffed against the one before it: who added, who trimmed, who walked away.
Every position they holdMeasure
Interrogate the filing, not the internet
Ask anything about CIENA CORP's fundamentals. The assistant answers from its own filings and cites the figure, never a guess from the open web.

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