CIENA CORP (CIEN)

Data as of Oct 13, 2026, from SEC Form 4 filings.

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Latest CIEN insider trades

Gary B. Smith - Officer
Open-market sale$1.09M
Oct 1, 2026
Marc D. Graff - Officer

About CIENA CORP (CIEN)

CIENA CORP is an SEC registrant, filing under CIK 0000936395, classified as telephone and telegraph apparatus. It is grouped with Information Technology companies on this site.

Sector: Information Technology

SEC filings for CIEN on EDGAR

CIEN Form 4 activity by transaction type, last 90 days

Form 4 transaction type	Transactions	Shares	Total value
Open-market sale	23	48,095	$18.57M
Tax withholding / forfeiture	36	35,997
Bona-fide gift	1	2,797

Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.

CIEN insider transactions (Form 4)

166 Form 4 filings on record, the earliest from Oct 1, 2024, newest first. Filing history page 3 of 3.

Date	Insider	Transaction	Security	Shares	Price	Value
Apr 1, 2026	Gary B. Smith - Officer	Open-market sale	Common Stock	2,952^{footnote F1}	$415.51^{footnote F2}	$1.23M
Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025. Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $402.3800 to $421.2600. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
Mar 27, 2026	Joseph Cumello - Officer	Open-market sale	Common Stock	1,773^{footnote F1}	$394.82	$700K
Footnote F1 (shares): Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/13/2025.
Mar 26, 2026	Lawton W. Fitt - Director	Grant or award	Common Stock	605^{footnote F1}	$0.00	-
Mar 26, 2026	Lawton W. Fitt - Director	Grant or award	Common Stock	257^{footnote F1}	$0.00	-
Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.
Mar 26, 2026	Mary G. Puma - Director	Grant or award	Common Stock	605^{footnote F1}	$0.00	-
Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.
Mar 26, 2026	Joanne Beth Olsen - Director	Grant or award	Common Stock	605^{footnote F1}	$0.00	-
Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.
Mar 26, 2026	Thomas Michael Nevens - Director	Grant or award	Common Stock	605^{footnote F1}	$0.00	-
Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.
Mar 26, 2026	Devinder Kumar - Director	Grant or award	Common Stock	605^{footnote F1}	$0.00	-
Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.
Mar 26, 2026	Patrick Gallagher - Director	Grant or award	Common Stock	605^{footnote F1}	$0.00	-
Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.
Mar 26, 2026	Hassan Ahmed - Director	Grant or award	Common Stock	605^{footnote F1}	$0.00	-
Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.
Mar 26, 2026	Bruce L. Claflin - Director	Grant or award	Common Stock	605^{footnote F1}	$0.00	-
Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.
Mar 24, 2026	Brodie Gage - Officer	Open-market sale	Common Stock	5,000^{footnote F1}	$405.00	$2.02M
Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 07/01/2025.
Mar 20, 2026	Gary B. Smith - Officer	Tax withholding / forfeiture	Common Stock	937^{footnote F1}	$383.89	$360K
Mar 20, 2026	Gary B. Smith - Officer	Tax withholding / forfeiture	Common Stock	2,985^{footnote F3}	$383.89	$1.15M
Mar 20, 2026	Gary B. Smith - Officer	Tax withholding / forfeiture	Common Stock	3,102^{footnote F4}	$383.89	$1.19M
Mar 20, 2026	Gary B. Smith - Officer	Tax withholding / forfeiture	Common Stock	1,743^{footnote F5}	$383.89	$669K
Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025. Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022. Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023. Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.
Mar 20, 2026	David M. Rothenstein - Officer	Tax withholding / forfeiture	Common Stock	472^{footnote F1}	$383.89	$181K
Mar 20, 2026	David M. Rothenstein - Officer	Tax withholding / forfeiture	Common Stock	174^{footnote F1}	$383.89	$67K
Mar 20, 2026	David M. Rothenstein - Officer	Tax withholding / forfeiture	Common Stock	811^{footnote F3}	$383.89	$311K
Mar 20, 2026	David M. Rothenstein - Officer	Tax withholding / forfeiture	Common Stock	436^{footnote F4}	$383.89	$167K
Mar 20, 2026	David M. Rothenstein - Officer	Tax withholding / forfeiture	Common Stock	220^{footnote F5}	$383.89	$84K
Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022. Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023. Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024. Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
Mar 20, 2026	Jason Phipps - Officer	Tax withholding / forfeiture	Common Stock	269^{footnote F1}	$383.89	$103K
Mar 20, 2026	Jason Phipps - Officer	Tax withholding / forfeiture	Common Stock	736^{footnote F3}	$383.89	$283K
Mar 20, 2026	Jason Phipps - Officer	Tax withholding / forfeiture	Common Stock	863^{footnote F4}	$383.89	$331K
Mar 20, 2026	Jason Phipps - Officer	Tax withholding / forfeiture	Common Stock	506^{footnote F5}	$383.89	$194K
Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025. Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022. Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023. Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.
Mar 20, 2026	Sheela Kosaraju - Officer	Tax withholding / forfeiture	Common Stock	164^{footnote F1}	$383.89	$63K
Mar 20, 2026	Sheela Kosaraju - Officer	Tax withholding / forfeiture	Common Stock	728^{footnote F3}	$383.89	$279K
Mar 20, 2026	Sheela Kosaraju - Officer	Tax withholding / forfeiture	Common Stock	578^{footnote F4}	$383.89	$222K
Mar 20, 2026	Sheela Kosaraju - Officer	Tax withholding / forfeiture	Common Stock	344^{footnote F5}	$383.89	$132K
Mar 20, 2026	Sheela Kosaraju - Officer	Tax withholding / forfeiture	Common Stock	198^{footnote F6}	$383.89	$76K
Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 2/3/2023. Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 2/1/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 2/3/2023. Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023. Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024. Footnote F6 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
Mar 20, 2026	Marc D. Graff - Officer	Tax withholding / forfeiture	Common Stock	199^{footnote F1}	$383.89	$76K
Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
Mar 20, 2026	Brodie Gage - Officer	Tax withholding / forfeiture	Common Stock	204^{footnote F3}	$383.89	$78K
Mar 20, 2026	Brodie Gage - Officer	Tax withholding / forfeiture	Common Stock	442^{footnote F4}	$383.89	$170K
Mar 20, 2026	Brodie Gage - Officer	Tax withholding / forfeiture	Common Stock	669^{footnote F5}	$383.89	$257K
Mar 20, 2026	Brodie Gage - Officer	Tax withholding / forfeiture	Common Stock	230^{footnote F1}	$383.89	$88K
Mar 20, 2026	Brodie Gage - Officer	Tax withholding / forfeiture	Common Stock	387^{footnote F6}	$383.89	$149K
Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025. Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 10/27/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 10/31/2023. Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 10/31/2023. Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023. Footnote F6 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.
Mar 20, 2026	Dino Diperna - Officer	Tax withholding / forfeiture	Common Stock	204^{footnote F1}	$383.89	$78K
Mar 20, 2026	Dino Diperna - Officer	Tax withholding / forfeiture	Common Stock	444^{footnote F3}	$383.89	$170K
Mar 20, 2026	Dino Diperna - Officer	Tax withholding / forfeiture	Common Stock	730^{footnote F4}	$383.89	$280K
Mar 20, 2026	Dino Diperna - Officer	Tax withholding / forfeiture	Common Stock	427^{footnote F5}	$383.89	$164K
Mar 20, 2026	Dino Diperna - Officer	Tax withholding / forfeiture	Common Stock	247^{footnote F6}	$383.89	$95K
Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 10/27/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 10/31/2023. Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 10/31/2023. Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023. Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024. Footnote F6 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
Mar 20, 2026	Joseph Cumello - Officer	Tax withholding / forfeiture	Common Stock	179^{footnote F1}	$383.89	$69K
Mar 20, 2026	Joseph Cumello - Officer	Tax withholding / forfeiture	Common Stock	307^{footnote F3}	$383.89	$118K
Mar 20, 2026	Joseph Cumello - Officer	Tax withholding / forfeiture	Common Stock	128^{footnote F4}	$383.89	$49K
Mar 20, 2026	Joseph Cumello - Officer	Tax withholding / forfeiture	Common Stock	582^{footnote F5}	$383.89	$223K
Mar 20, 2026	Joseph Cumello - Officer	Tax withholding / forfeiture	Common Stock	331^{footnote F6}	$383.89	$127K
Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025. Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 2/3/2023. Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 2/1/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 2/3/2023. Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023. Footnote F6 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.
Mar 16, 2026	Gary B. Smith - Officer	Open-market sale	Common Stock	2,952^{footnote F1}	$359.53^{footnote F2}	$1.06M
Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025. Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $349.4950 to $366.5750. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
Mar 16, 2026	David M. Rothenstein - Officer	Open-market sale	Common Stock	2,500^{footnote F1}	$345.00	$863K
Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/10/2025.
Mar 2, 2026	Gary B. Smith - Officer	Open-market sale	Common Stock	2,952^{footnote F1}	$354.64^{footnote F2}	$1.05M
Footnote F1 (shares): Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/04/2025. Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $345.8050 to $363.0350. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
Feb 17, 2026	David M. Rothenstein - Officer	Open-market sale	Common Stock	2,500^{footnote F1}	$300.20^{footnote F2}	$750K
Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/10/2025. Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $288.71 to $306.54. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
Feb 17, 2026	Gary B. Smith - Officer	Open-market sale	Common Stock	2,952^{footnote F1}	$299.51^{footnote F2}	$884K
Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025. Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $287.74 to $307.58. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
Feb 2, 2026	Gary B. Smith - Officer	Open-market sale	Common Stock	2,952^{footnote F1}	$265.60^{footnote F2}	$784K
Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025. Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $248.6950 to $270.6550. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
Jan 15, 2026	Sheela Kosaraju - Officer	Open-market sale	Common Stock	382^{footnote F1}	$246.23	$94K
Footnote F1 (shares): Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/14/2025.
Jan 15, 2026	Gary B. Smith - Officer	Open-market sale	Common Stock	2,993^{footnote F1}	$247.65^{footnote F2}	$741K
Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025. Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $243.4700 to $251.8700. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
Jan 15, 2026	Jason Phipps - Officer	Open-market sale	Common Stock	21,383^{footnote F1}	$247.89^{footnote F2}	$5.30M
Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/06/2025. Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $246.23 to $249.95. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
Jan 15, 2026	Dino Diperna - Officer	Open-market sale	Common Stock	2,527^{footnote F1}	$246.23	$622K
Jan 15, 2026	Dino Diperna - Officer	Open-market sale	Common Stock	2,527^{footnote F1}	$246.23	$622K
Footnote F1 (shares): Sales were effected pursuant to Rule 10b5-1 trading plan dated 7/11/2025.
Dec 16, 2025	Marc D. Graff - Officer	Grant or award	Common Stock	9,293^{footnote F1}	$0.00	-
Footnote F1 (shares): Reflects Restricted Stock Units (RSUs) that vest over four years, with one-sixteenth of the grant amount vesting on March 20, June 20, September 20, and December 20 of each year, commencing on March 20, 2026.

See every CIEN filing on record

These pages show the latest 90 of 166 Form 4 filings on record. The 7-day demo shows all 166, and sign-up brings you back to this table.

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Recent CIEN Form 8-K filings

Read CIEN company news

Sep 3, 2026Item 2.02, 9.01

Read the filing on SEC EDGAR

Jun 11, 2026Item 1.01, 2.03, 3.02, 8.01, 9.01

Read the filing on SEC EDGAR

Jun 8, 2026Item 8.01, 9.01

Read the filing on SEC EDGAR

Jun 4, 2026Item 2.02, 9.01

Recent CIEN Form 144 notices of proposed sale

An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.

Filed	Filer	Relationship	Shares	Market value	Notice
Oct 1, 2026	MARC GRAFF	Officer	97	$34K	View on EDGAR
Oct 1, 2026	SHEELA KOSARAJU	Officer	2,101

Congress trades in CIEN

All congress trades

Stock trades in CIEN disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.

Member	Type	Traded	Disclosed	Value range	Owner	Days to disclose	Filing
Gilbert Ray Cisneros, Jr.Democrat, CA-31	Purchase

CIEN insider trading FAQ

What is the latest insider trade for CIEN?

CIENA CORP (CIEN) had 31 insider filings in the last 90 days, with the most recent on 2026-10-13. The full record for CIEN runs to 166 Form 4 filings, the earliest from 2024-10-01. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.

How many insiders are buying CIEN stock?

No insider purchases of CIEN were filed in the last 90 days.

How many insiders are selling CIEN stock?

23 insider sales of CIEN were filed in the last 90 days, totaling $18.57M.

Where can I see CIEN SEC filings (Form 4, 10-K, 10-Q, 8-K)?

This page collects CIEN Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.

More Information Technology companies with insider activity

Recent insider filings

The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.

Oct 13, 2026 - Gary B. Smith view on EDGAR
Oct 6, 2026 - Marc D. Graff view on EDGAR
Oct 6, 2026 - Sheela Kosaraju view on EDGAR
Oct 6, 2026 - Jason Phipps view on EDGAR
Sep 29, 2026 - Joseph Cumello view on EDGAR
Sep 28, 2026 - Bruce L. Claflin view on EDGAR
Sep 25, 2026 - Thomas Michael Nevens view on EDGAR
Sep 22, 2026 - Joseph Cumello view on EDGAR
Sep 22, 2026 - Dino Diperna view on EDGAR

Related companies with recent insider activity

Learn more

Insider selling: signal or noise?: Why most insider sales are routine, and the few patterns worth a second look.
Form 144 vs Form 4: A Form 144 announces a planned sale; the Form 4 reports it after it happens.
Insider activity in Information Technology: Where CIEN's peers are being bought and sold.
Every recent Form 4: The market-wide feed, updated as filings arrive from SEC EDGAR.

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Form 4 transaction type

Transactions

Total value

Open-market sale

48,095

$18.57M

Tax withholding / forfeiture

35,997

Bona-fide gift

2,797

Date

Insider

Transaction

Security

Price

Value

Apr 1, 2026

Gary B. Smith - Officer

Open-market sale

Common Stock

2,952^{footnote F1}

$415.51^{footnote F2}

$1.23M

Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025.
Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $402.3800 to $421.2600. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

Mar 27, 2026

Joseph Cumello - Officer

Open-market sale

Common Stock

1,773^{footnote F1}

$394.82

$700K

Footnote F1 (shares): Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/13/2025.

Mar 26, 2026

Lawton W. Fitt - Director

Grant or award

Common Stock

605^{footnote F1}

$0.00

Mar 26, 2026

Lawton W. Fitt - Director

Grant or award

Common Stock

257^{footnote F1}

$0.00

Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.

Mar 26, 2026

Mary G. Puma - Director

Grant or award

Common Stock

605^{footnote F1}

$0.00

Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.

Mar 26, 2026

Joanne Beth Olsen - Director

Grant or award

Common Stock

605^{footnote F1}

$0.00

Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.

Mar 26, 2026

Thomas Michael Nevens - Director

Grant or award

Common Stock

605^{footnote F1}

$0.00

Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.

Mar 26, 2026

Devinder Kumar - Director

Grant or award

Common Stock

605^{footnote F1}

$0.00

Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.

Mar 26, 2026

Patrick Gallagher - Director

Grant or award

Common Stock

605^{footnote F1}

$0.00

Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.

Mar 26, 2026

Hassan Ahmed - Director

Grant or award

Common Stock

605^{footnote F1}

$0.00

Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.

Mar 26, 2026

Bruce L. Claflin - Director

Grant or award

Common Stock

605^{footnote F1}

$0.00

Footnote F1 (shares): Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.

Mar 24, 2026

Brodie Gage - Officer

Open-market sale

Common Stock

5,000^{footnote F1}

$405.00

$2.02M

Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 07/01/2025.

Mar 20, 2026

Gary B. Smith - Officer

Tax withholding / forfeiture

Common Stock

937^{footnote F1}

$383.89

$360K

Mar 20, 2026

Gary B. Smith - Officer

Tax withholding / forfeiture

Common Stock

2,985^{footnote F3}

$383.89

$1.15M

Mar 20, 2026

Gary B. Smith - Officer

Tax withholding / forfeiture

Common Stock

3,102^{footnote F4}

$383.89

$1.19M

Mar 20, 2026

Gary B. Smith - Officer

Tax withholding / forfeiture

Common Stock

1,743^{footnote F5}

$383.89

$669K

Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022.
Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.
Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.

Mar 20, 2026

David M. Rothenstein - Officer

Tax withholding / forfeiture

Common Stock

472^{footnote F1}

$383.89

$181K

Mar 20, 2026

David M. Rothenstein - Officer

Tax withholding / forfeiture

Common Stock

174^{footnote F1}

$383.89

$67K

Mar 20, 2026

David M. Rothenstein - Officer

Tax withholding / forfeiture

Common Stock

811^{footnote F3}

$383.89

$311K

Mar 20, 2026

David M. Rothenstein - Officer

Tax withholding / forfeiture

Common Stock

436^{footnote F4}

$383.89

$167K

Mar 20, 2026

David M. Rothenstein - Officer

Tax withholding / forfeiture

Common Stock

220^{footnote F5}

$383.89

$84K

Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022.
Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.
Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.
Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.

Mar 20, 2026

Jason Phipps - Officer

Tax withholding / forfeiture

Common Stock

269^{footnote F1}

$383.89

$103K

Mar 20, 2026

Jason Phipps - Officer

Tax withholding / forfeiture

Common Stock

736^{footnote F3}

$383.89

$283K

Mar 20, 2026

Jason Phipps - Officer

Tax withholding / forfeiture

Common Stock

863^{footnote F4}

$383.89

$331K

Mar 20, 2026

Jason Phipps - Officer

Tax withholding / forfeiture

Common Stock

506^{footnote F5}

$383.89

$194K

Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022.
Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.
Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.

Mar 20, 2026

Sheela Kosaraju - Officer

Tax withholding / forfeiture

Common Stock

164^{footnote F1}

$383.89

$63K

Mar 20, 2026

Sheela Kosaraju - Officer

Tax withholding / forfeiture

Common Stock

728^{footnote F3}

$383.89

$279K

Mar 20, 2026

Sheela Kosaraju - Officer

Tax withholding / forfeiture

Common Stock

578^{footnote F4}

$383.89

$222K

Mar 20, 2026

Sheela Kosaraju - Officer

Tax withholding / forfeiture

Common Stock

344^{footnote F5}

$383.89

$132K

Mar 20, 2026

Sheela Kosaraju - Officer

Tax withholding / forfeiture

Common Stock

198^{footnote F6}

$383.89

$76K

Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 2/3/2023.
Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 2/1/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 2/3/2023.
Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.
Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.
Footnote F6 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.

Mar 20, 2026

Marc D. Graff - Officer

Tax withholding / forfeiture

Common Stock

199^{footnote F1}

$383.89

$76K

Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.

Mar 20, 2026

Brodie Gage - Officer

Tax withholding / forfeiture

Common Stock

204^{footnote F3}

$383.89

$78K

Mar 20, 2026

Brodie Gage - Officer

Tax withholding / forfeiture

Common Stock

442^{footnote F4}

$383.89

$170K

Mar 20, 2026

Brodie Gage - Officer

Tax withholding / forfeiture

Common Stock

669^{footnote F5}

$383.89

$257K

Mar 20, 2026

Brodie Gage - Officer

Tax withholding / forfeiture

Common Stock

230^{footnote F1}

$383.89

$88K

Mar 20, 2026

Brodie Gage - Officer

Tax withholding / forfeiture

Common Stock

387^{footnote F6}

$383.89

$149K

Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 10/27/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 10/31/2023.
Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 10/31/2023.
Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.
Footnote F6 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.

Mar 20, 2026

Dino Diperna - Officer

Tax withholding / forfeiture

Common Stock

204^{footnote F1}

$383.89

$78K

Mar 20, 2026

Dino Diperna - Officer

Tax withholding / forfeiture

Common Stock

444^{footnote F3}

$383.89

$170K

Mar 20, 2026

Dino Diperna - Officer

Tax withholding / forfeiture

Common Stock

730^{footnote F4}

$383.89

$280K

Mar 20, 2026

Dino Diperna - Officer

Tax withholding / forfeiture

Common Stock

427^{footnote F5}

$383.89

$164K

Mar 20, 2026

Dino Diperna - Officer

Tax withholding / forfeiture

Common Stock

247^{footnote F6}

$383.89

$95K

Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 10/27/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 10/31/2023.
Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 10/31/2023.
Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.
Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.
Footnote F6 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.

Mar 20, 2026

Joseph Cumello - Officer

Tax withholding / forfeiture

Common Stock

179^{footnote F1}

$383.89

$69K

Mar 20, 2026

Joseph Cumello - Officer

Tax withholding / forfeiture

Common Stock

307^{footnote F3}

$383.89

$118K

Mar 20, 2026

Joseph Cumello - Officer

Tax withholding / forfeiture

Common Stock

128^{footnote F4}

$383.89

$49K

Mar 20, 2026

Joseph Cumello - Officer

Tax withholding / forfeiture

Common Stock

582^{footnote F5}

$383.89

$223K

Mar 20, 2026

Joseph Cumello - Officer

Tax withholding / forfeiture

Common Stock

331^{footnote F6}

$383.89

$127K

Footnote F1 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
Footnote F3 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 2/3/2023.
Footnote F4 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 2/1/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 2/3/2023.
Footnote F5 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.
Footnote F6 (shares): Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.

Mar 16, 2026

Gary B. Smith - Officer

Open-market sale

Common Stock

2,952^{footnote F1}

$359.53^{footnote F2}

$1.06M

Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025.
Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $349.4950 to $366.5750. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

Mar 16, 2026

David M. Rothenstein - Officer

Open-market sale

Common Stock

2,500^{footnote F1}

$345.00

$863K

Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/10/2025.

Mar 2, 2026

Gary B. Smith - Officer

Open-market sale

Common Stock

2,952^{footnote F1}

$354.64^{footnote F2}

$1.05M

Footnote F1 (shares): Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/04/2025.
Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $345.8050 to $363.0350. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

Feb 17, 2026

David M. Rothenstein - Officer

Open-market sale

Common Stock

2,500^{footnote F1}

$300.20^{footnote F2}

$750K

Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/10/2025.
Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $288.71 to $306.54. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

Feb 17, 2026

Gary B. Smith - Officer

Open-market sale

Common Stock

2,952^{footnote F1}

$299.51^{footnote F2}

$884K

Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025.
Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $287.74 to $307.58. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

Feb 2, 2026

Gary B. Smith - Officer

Open-market sale

Common Stock

2,952^{footnote F1}

$265.60^{footnote F2}

$784K

Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025.
Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $248.6950 to $270.6550. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

Jan 15, 2026

Sheela Kosaraju - Officer

Open-market sale

Common Stock

382^{footnote F1}

$246.23

$94K

Footnote F1 (shares): Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/14/2025.

Jan 15, 2026

Gary B. Smith - Officer

Open-market sale

Common Stock

2,993^{footnote F1}

$247.65^{footnote F2}

$741K

Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025.
Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $243.4700 to $251.8700. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

Jan 15, 2026

Jason Phipps - Officer

Open-market sale

Common Stock

21,383^{footnote F1}

$247.89^{footnote F2}

$5.30M

Footnote F1 (shares): Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/06/2025.
Footnote F2 (price): Reflects the weighted average sales price with transactions in a range of sales from $246.23 to $249.95. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

Jan 15, 2026

Dino Diperna - Officer

Open-market sale

Common Stock

2,527^{footnote F1}

$246.23

$622K

Jan 15, 2026

Dino Diperna - Officer

Open-market sale

Common Stock

2,527^{footnote F1}

$246.23

$622K

Footnote F1 (shares): Sales were effected pursuant to Rule 10b5-1 trading plan dated 7/11/2025.

Dec 16, 2025

Marc D. Graff - Officer

Grant or award

Common Stock

9,293^{footnote F1}

$0.00

Footnote F1 (shares): Reflects Restricted Stock Units (RSUs) that vest over four years, with one-sixteenth of the grant amount vesting on March 20, June 20, September 20, and December 20 of each year, commencing on March 20, 2026.

Filed

Filer

Relationship

Market value

Notice

Oct 1, 2026

MARC GRAFF

Officer

$34K

View on EDGAR

Oct 1, 2026

SHEELA KOSARAJU

Officer

2,101

Member	Type	Traded	Disclosed	Value range	Owner	Days to disclose	Filing
Gilbert Ray Cisneros, Jr.Democrat, CA-31	Purchase

Member

Type

Traded

Disclosed

Value range

Owner

Days to disclose

Filing

Gilbert Ray Cisneros, Jr.Democrat, CA-31

Purchase