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CIENA CORP (CIEN) S&P 500 XNYS TELEPHONE & TELEGRAPH APPARATUS Net insider selling (90d)
Latest CIEN Insider Trades Ciena is a leader in high-speed optical connectivity, providing systems, components, and automation software for telecom providers and enterprises, such as data centers, to enable long-distance connectivity. The company operates through four primary business segments: networking platforms, platform software and services, Blue Planet automation software, and global services. While telecom carriers remain important customers, cloud providers and hyperscalers now drive a significant portion of the business. To meet the demands of AI data centers, customers are adopting Ciena's WaveLogic 6 platform, the first to support 1.6 terabits-per-second capacity.
Headquarters HANOVER, MD
Employees 9,080
Listed 1997
Exchange XNYS https://www.ciena.com SEC filings for CIEN on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market sale 20 41,069 $18.53M Grant or award 1 6,517 Tax withholding / forfeiture 35 35,841
CIEN Insider Transactions (Form 4) 57 145 Form 4 filings on record, the earliest from Oct 1, 2024, newest first. Filing history page 1 of 3.
Date Insider Transaction Security Shares Price Value Aug 14, 2026 MG Marc D. Graff - Officer Open-market sale Common Stock 4,995
Recent CIEN Form 8-K Filings 5
Recent CIEN Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Aug 17, 2026 BRODIE GAGE Officer 1,200 $527K View on EDGAR Aug 14, 2026 MARC GRAFF Officer
CIEN Insider Trading - FAQ
What is the latest insider trade for CIEN? CIENA CORP (CIEN) had 29 insider filings in the last 90 days, with the most recent on 2026-08-18. The full record for CIEN runs to 145 Form 4 filings, the earliest from 2024-10-01. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
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? 20 insider sales of CIEN were filed in the last 90 days, totaling $18.53M.
Where can I see CIEN SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks CIEN Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow CIEN insider buys? Create a free InsiderAlpha account and press Watch on this page to add CIEN to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Information Technology Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track CIEN insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
Sign up free $1.10M
BG Brodie Gage - Officer Open-market sale $527K
Aug 17, 2026
BG Brodie Gage - Officer Open-market sale $539K
Jul 15, 2026
Market cap $53.57B
P/E ratio 126.70
Dividend yield -
Average volume 2.70M
52 week high $637.51
52 week low $90.00
Today's high -
Today's low -
Open -
Volume -
Previous close $378.44
Shares outstanding 141.55M Market cap
$53.57B
9,080 employees
CIEN Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
0% Buying 100% Selling
0 insider purchases totaling $0 against 20 sales totaling $18.53M.
Most-Active CIEN Insiders - Last 90 Days 10 Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Aug 17, 2026 GS Gary B. Smith - Officer Open-market sale Common Stock 2,952 $447.78 $1.32M
Aug 17, 2026 BG Brodie Gage - Officer Open-market sale Common Stock 1,200 $439.24 $527K
Aug 1, 2026 MG Marc D. Graff - Officer Tax withholding / forfeiture Common Stock 14,441 $377.05 $5.44M
Aug 3, 2026 GS Gary B. Smith - Officer Open-market sale Common Stock 2,952 $379.81 $1.12M
Jul 15, 2026 GS Gary B. Smith - Officer Open-market sale Common Stock 2,952 $421.10 $1.24M
Jul 15, 2026 BG Brodie Gage - Officer Open-market sale Common Stock 1,200 $449.15 $539K
Jul 15, 2026 DD Dino Diperna - Officer Open-market sale Common Stock 391 $449.15 $176K
Jul 15, 2026 DD Dino Diperna - Officer Open-market sale Common Stock 391 $449.15 $176K
Jul 1, 2026 SK Sheela Kosaraju - Officer Open-market sale Common Stock 2,013 $466.20 $938K
Jul 1, 2026 MG Marc D. Graff - Officer Open-market sale Common Stock 126 $466.20 $59K
Jul 1, 2026 JP Jason Phipps - Officer Open-market sale Common Stock 2,629 $466.20 $1.23M
Jul 1, 2026 GS Gary B. Smith - Officer Open-market sale Common Stock 2,952 $468.83 $1.38M
Jun 26, 2026 JC Joseph Cumello - Officer Open-market sale Common Stock 1,586 $466.33 $740K
Jun 24, 2026 MG Marc D. Graff - Officer Open-market sale Common Stock 126 $449.36 $57K
Jun 22, 2026 GH Grant Hoffman - Officer Grant or award Common Stock 6,517 $0.00 -
Jun 20, 2026 MG Marc D. Graff - Officer Tax withholding / forfeiture Common Stock 199 $428.22 $85K
Jun 20, 2026 GS Gary B. Smith - Officer Tax withholding / forfeiture Common Stock 937 $428.22 $401K
Jun 20, 2026 GS Gary B. Smith - Officer Tax withholding / forfeiture Common Stock 2,985 $428.22 $1.28M
Jun 20, 2026 GS Gary B. Smith - Officer Tax withholding / forfeiture Common Stock 3,102 $428.22 $1.33M
Jun 20, 2026 GS Gary B. Smith - Officer Tax withholding / forfeiture Common Stock 1,743 $428.22 $746K
Jun 20, 2026 JP Jason Phipps - Officer Tax withholding / forfeiture Common Stock 735 $428.22 $315K
Jun 20, 2026 JP Jason Phipps - Officer Tax withholding / forfeiture Common Stock 859 $428.22 $368K
Jun 20, 2026 JP Jason Phipps - Officer Tax withholding / forfeiture Common Stock 504 $428.22 $216K
Jun 20, 2026 JP Jason Phipps - Officer Tax withholding / forfeiture Common Stock 268 $428.22 $115K
Jun 20, 2026 SK Sheela Kosaraju - Officer Tax withholding / forfeiture Common Stock 345 $428.22 $148K
Jun 20, 2026 SK Sheela Kosaraju - Officer Tax withholding / forfeiture Common Stock 198 $428.22 $85K
Jun 20, 2026 SK Sheela Kosaraju - Officer Tax withholding / forfeiture Common Stock 164 $428.22 $70K
Jun 20, 2026 SK Sheela Kosaraju - Officer Tax withholding / forfeiture Common Stock 728 $428.22 $312K
Jun 20, 2026 SK Sheela Kosaraju - Officer Tax withholding / forfeiture Common Stock 578 $428.22 $248K
Jun 20, 2026 BG Brodie Gage - Officer Tax withholding / forfeiture Common Stock 204 $428.22 $87K
Jun 20, 2026 BG Brodie Gage - Officer Tax withholding / forfeiture Common Stock 442 $428.22 $189K
Jun 20, 2026 BG Brodie Gage - Officer Tax withholding / forfeiture Common Stock 669 $428.22 $286K
Jun 20, 2026 BG Brodie Gage - Officer Tax withholding / forfeiture Common Stock 388 $428.22 $166K
Jun 20, 2026 BG Brodie Gage - Officer Tax withholding / forfeiture Common Stock 231 $428.22 $99K
Jun 20, 2026 DD Dino Diperna - Officer Tax withholding / forfeiture Common Stock 248 $428.22 $106K
Jun 20, 2026 DD Dino Diperna - Officer Tax withholding / forfeiture Common Stock 204 $428.22 $87K
Jun 20, 2026 DD Dino Diperna - Officer Tax withholding / forfeiture Common Stock 444 $428.22 $190K
Jun 20, 2026 DD Dino Diperna - Officer Tax withholding / forfeiture Common Stock 730 $428.22 $313K
Jun 20, 2026 DD Dino Diperna - Officer Tax withholding / forfeiture Common Stock 428 $428.22 $183K
Jun 20, 2026 JC Joseph Cumello - Officer Tax withholding / forfeiture Common Stock 582 $428.22 $249K
Jun 20, 2026 JC Joseph Cumello - Officer Tax withholding / forfeiture Common Stock 332 $428.22 $142K
Jun 20, 2026 JC Joseph Cumello - Officer Tax withholding / forfeiture Common Stock 180 $428.22 $77K
Jun 20, 2026 JC Joseph Cumello - Officer Tax withholding / forfeiture Common Stock 441 $428.22 $189K
Jun 20, 2026 JC Joseph Cumello - Officer Tax withholding / forfeiture Common Stock 182 $428.22 $78K
Jun 15, 2026 GS Gary B. Smith - Officer Open-market sale Common Stock 2,952 $457.02 $1.35M
Jun 15, 2026 BG Brodie Gage - Officer Open-market sale Common Stock 1,200 $466.10 $559K
Jun 1, 2026 GS Gary B. Smith - Officer Open-market sale Common Stock 2,952 $565.92 $1.67M
May 15, 2026 GS Gary B. Smith - Officer Open-market sale Common Stock 2,952 $562.05 $1.66M
