Ciena Corporation (CIEN)
NYSE: CIEN · Telephone & Telegraph Apparatus · Hanover, MD · filing with the SEC since 1996
Grade6.8
◀ Past 7.7● Present 6.9▶ Future 5.7
Who owns Ciena Corporation
As filed with the SECHolders of 5% or more
4
Fmr LLC holds 13.5% of COMMON STOCK, as its SCHEDULE 13G/A filed Aug 6, 2026 says.
Directors and officers
17
report now, of 31 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Fmr LLC
SCHEDULE 13G/A · filed Aug 6, 2026 · COMMON STOCK
Blackrock, Inc.
SCHEDULE 13G/A · filed Apr 24, 2026 · Common Stock · 10.3% in Dec 4, 2025
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
JPMorgan Chase & Co.
SCHEDULE 13G/A · filed Sep 3, 2026 · Common Stock, par value $0.01 per share · reported falling below 5%, from 7.7% in Jan 21, 2026
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%
What CIEN reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Nubis Communications
A company bought · acquisition · Sep 2025 · owns, named in the 10-K filed Dec 12, 2025
Benu and Tibit
A company bought · acquisition · Dec 2022 · owns, named in the 10-K filed Dec 12, 2025
6 subsidiaries in 4 countries, from the list filed with the 10-K filed Dec 12, 2025.
Insider tradesForm 4
92sales
0purchases
89sales on a scheduled plan
11people selling
$101Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 4, 2025 to Nov 4, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 4, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window11 of 31 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Smith Gary B | President & CEO | 24 | $47.0M | 24 | 0 | $0 |
| Phipps Jason | EVP & Chief Customer Officer | 18 | $16.5M | 18 | 0 | $0 |
| Rothenstein David M | EVP & Chief Strategy Officer | 12 | $10.8M | 12 | 0 | $0 |
| Gage Brodie | EVP & Chief Product & Tech | 10 | $5.8M | 10 | 0 | $0 |
| Cumello Joseph | EVP & General Mgr. | 4 | $4.7M | 4 | 0 | $0 |
| Diperna Dino | EVP & Chief R&D Officer | 12 | $3.9M | 12 | 0 | $0 |
| Nevens Thomas Michael | director | 2 | $3.3M | 0 | 0 | $0 |
| Kosaraju Sheela | EVP & Chief Legal Officer | 5 | $3.0M | 5 | 0 | $0 |
| Gallagher Patrick | director | 1 | $2.6M | 1 | 0 | $0 |
| Graff Marc D. | EVP & Chief Financial Officer | 3 | $2.3M | 3 | 0 | $0 |
| Claflin Bruce L. | director | 1 | $1.0M | 0 | 0 | $0 |