SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

CIEN

Ciena Corporation
NYSEInformation Technology

Latest close: 332.73 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Oct 15, 2026Notice of sale · Form 144Gary B. Smith · Officer · $5.3MOpen the filing ↗
  2. Oct 15, 2026Notice of sale · Form 144DAVID ROTHENSTEIN · Officer · $899.0KOpen the filing ↗
  3. Oct 15, 2026Notice of sale · Form 144BRODIE GAGE · Officer · $412.9KOpen the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record3,51514 flagged findings
Reported transactions (Form 4)40since Sep 20, 2026 · and 5 other holdings
Corporate events (8-K)30since Oct 31, 2019

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

What the company does

Ciena Corporation is an American optical networking systems and software company based in Hanover, Maryland. The company reported revenues of $4.8 billion and more than 9,000 employees, as of November 2025. Gary Smith has been president and chief executive officer (CEO) since 2003.

Source: Wikipedia (CC BY-SA 4.0) · copied on Sep 3, 2026 · may not reflect recent changes.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-06-11share offering or dilution eventrecentOpen filing ↗
    “…revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ITEM 1.01 - ENTRY INTO A MATERIAL…”
    +1 more passage from the same document
    • “…note hedge transactions are expected generally to reduce the potential dilution upon conversion of the Notes and/or offset…”
  • 2026-06-11capital return (buybacks/dividends)recentOpen filing ↗
    “…or after June 15, 2031, and prior to the close of business on the second scheduled trading day immediately preceding the stated…”
    +1 more passage from the same document
    • “…maturity date of the Notes, without regard to the foregoing circumstances. Upon the occurrence of a fundamental change (as…”
  • 2026-06-08share offering or dilution eventrecentOpen filing ↗
    “…Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging Growth Company ☐ If an emerging growth company, indicate by check mark…”
    +1 more passage from the same document
    • “…period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange…”
  • 2026-06-08capital return (buybacks/dividends)recentOpen filing ↗
    “…number of shares of the Company’s common stock, subject to customary anti-dilution adjustments. The Company intends to use a portion…”
    +1 more passage from the same document
    • “…Company intends to use a portion of the net proceeds from the Offering to (i) pay the net cost of the convertible note hedge…”
  • 2026-06-04capital return (buybacks/dividends)recentOpen filing ↗
    “…from modification of debt, net — 19,175 Cash paid for extinguishment of debt — ( 19,175 ) Payment of long-term debt ( 5,790 ) ( 5,790…”
    +1 more passage from the same document
    • “…except share data) (unaudited) Common Stock Shares Par Value Additional Paid-in-Capital Accumulated Other Comprehensive Loss…”

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 3,515)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

3,515 filings on record, the oldest from Feb 19, 97.

Listing the 25 most recent filings of the 3,515 on record.

8-Ks, explained

Stress7Structure76Governance45
  • Jun 11, 26StructureEntered a material agreement+4 more in the same filing8-K 1.01 ↗
  • Dec 4, 25GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Jun 18, 25GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Jan 21, 25StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • Governance3 senior executive changes2024show all 3hide
    • Dec 12, 24GovernanceA senior executive left or was appointed+4 more in the same filing8-K 5.02 ↗
    • Sep 4, 24GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
    • Apr 23, 24GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Mar 26, 24GovernanceControl of the company changed hands+2 more in the same filing8-K 5.01 ↗
  • Oct 25, 23StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗
  • Oct 3, 23GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Aug 31, 23GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Feb 15, 23StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗
  • Jan 24, 23GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Structure3 material agreements entered2021 – 2023show all 3hide
    • Jan 23, 23StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
    • Jan 18, 22StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
    • Dec 14, 21StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗

5 older filings not shown · The record reaches back to Feb 4, 05.

Notable in the record

Stress disclosures older than the timeline above. They are individual events from the record, not a complete timeline: there may be more between them.

  • Dec 12, 13StressListing notice (8-K 3.01)+2 more in the same filing8-K 3.01 ↗
  • Sep 9, 10StressRestructuring plan with committed costs8-K/A 2.05 ↗
  • May 12, 10StressRestructuring plan with committed costs8-K 2.05 ↗
  • Apr 17, 09StressWrite-down of assets+1 more in the same filing8-K 2.06 ↗
  • Mar 5, 09StressRestructuring plan with committed costs+2 more in the same filing8-K 2.05 ↗
  • Jul 18, 08StressWrite-down of assets+1 more in the same filing8-K 2.06 ↗
  • Mar 21, 06StressRestructuring plan with committed costs8-K 2.05 ↗

The full record holds 7 stress filings.

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

Sale intention announced

On Oct 15, Gary B. Smith filed notice of intent to sell up to $5.3M. That is about 0.01% of shares outstanding. It is filed under a scheduled plan (10b5-1), arranged in advance.

A notice is not a sale: it may not go ahead, may happen in part, or at a different price.

No sale of theirs is on record yet in Form 4; the 90-day window is still open.

View notice (Form 144) ↗+9 more recent notices · 6 with a later sale

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Oct 1, 26Sell$934KJason PhippsEVP & Chief Customer Officer↗
  • Oct 1, 26Sell$746KSheela KosarajuEVP & Chief Legal Officer↗
  • Oct 1, 26Sell$34KMarc D. GraffEVP & Chief Financial Officer↗
  • Oct 1, 26Sell$1.1MGARY B SMITHPresident & CEO↗
  • Sep 25, 26Sell$569KJoseph CumelloEVP & General Mgr.↗
  • Sep 24, 26Sell$1.0MBruce L. Claflin↗
  • Sep 23, 26Sell$1.3MTHOMAS MICHAEL NEVENS↗
Stock compensation, tax and giftsshow the 33 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Sep 24, 26Giftamount n/aTHOMAS MICHAEL NEVENS↗
  • Sep 20, 26Tax$1.0MGARY B SMITHPresident & CEO↗
  • Sep 20, 26Tax$1.1MGARY B SMITHPresident & CEO↗
  • Sep 20, 26Tax$608KGARY B SMITHPresident & CEO↗
  • Sep 20, 26Tax$327KGARY B SMITHPresident & CEO↗
  • Sep 20, 26Tax$237KDavid M RothensteinEVP & Chief Strategy Officer↗
  • Sep 20, 26Tax$71KDavid M RothensteinEVP & Chief Strategy Officer↗
  • Sep 20, 26Tax$283KDavid M RothensteinEVP & Chief Strategy Officer↗
  • Sep 20, 26Tax$152KDavid M RothensteinEVP & Chief Strategy Officer↗
  • Sep 20, 26Tax$77KDavid M RothensteinEVP & Chief Strategy Officer↗
  • Sep 20, 26Tax$256KJason PhippsEVP & Chief Customer Officer↗
  • Sep 20, 26Tax$300KJason PhippsEVP & Chief Customer Officer↗
  • Sep 20, 26Tax$175KJason PhippsEVP & Chief Customer Officer↗
  • Sep 20, 26Tax$93KJason PhippsEVP & Chief Customer Officer↗
  • Sep 20, 26Tax$154KJoseph CumelloEVP & General Mgr.↗
  • Sep 20, 26Tax$63KJoseph CumelloEVP & General Mgr.↗
  • Sep 20, 26Tax$203KJoseph CumelloEVP & General Mgr.↗
  • Sep 20, 26Tax$63KJoseph CumelloEVP & General Mgr.↗
  • Sep 20, 26Tax$115KJoseph CumelloEVP & General Mgr.↗
  • Sep 20, 26Tax$54KSheela KosarajuEVP & Chief Legal Officer↗
  • Sep 20, 26Tax$241KSheela KosarajuEVP & Chief Legal Officer↗
  • Sep 20, 26Tax$191KSheela KosarajuEVP & Chief Legal Officer↗
  • Sep 20, 26Tax$115KSheela KosarajuEVP & Chief Legal Officer↗
  • Sep 20, 26Tax$66KSheela KosarajuEVP & Chief Legal Officer↗
  • Sep 20, 26Tax$71KDino DiPernaEVP & Chief R&D Officer↗
  • Sep 20, 26Tax$155KDino DiPernaEVP & Chief R&D Officer↗
  • Sep 20, 26Tax$255KDino DiPernaEVP & Chief R&D Officer↗
  • Sep 20, 26Tax$149KDino DiPernaEVP & Chief R&D Officer↗
  • Sep 20, 26Tax$86KDino DiPernaEVP & Chief R&D Officer↗
  • Sep 20, 26Tax$71KBrodie GageEVP & Chief Product &↗
  • Sep 20, 26Tax$154KBrodie GageEVP & Chief Product &↗
  • Sep 20, 26Tax$233KBrodie GageEVP & Chief Product &↗
  • Sep 20, 26Tax$135KBrodie GageEVP & Chief Product &↗

The full record holds 1,016 transactions and goes back to Mar 23, 15.

Its sector and its market

Ciena Corporation among Information Technology companies

The profile shows what is on record. Context and Radar place the company among those of its sector and region.

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Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
250 clean closes in the period.
SEC records
3,515 documents on file, from Feb 19, 1997 to Oct 15, 2026.
Company description
Wikipedia, read on Sep 3, 2026.
This page
Generated on Oct 19, 2026; refreshed through the day.

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Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

Why does a European company show no SEC records?

It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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