Companies / Ciena Corp
Ciena Corp
NYSE: CIENCIK 936395Information TechnologyHANOVER, MD
Financials · FY2025
Ownership
141.6M shares outstanding · as of May 29, 2026
Ownership
| Insiders | 0.88% | 1,243,394 |
| 10%+ / strategic | 7.67% | 10,851,732 |
| Institutions | 94.88% | 134,308,209 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 16
View all →| Insider | % of shares | Shares |
|---|---|---|
Smith Gary BCEOPresident, CEO · Director | 0.18% | 257,838 |
Rothenstein David MSVP and Chief Strategy Officer | 0.14% | 195,081 |
Fitt Lawton WDirector | 0.09% | 130,033 |
Graff Marc D.SVP & Chief Financial Officer | 0.09% | 127,406 |
Kosaraju SheelaSVP and General Counsel | 0.07% | 94,119 |
Phipps JasonSVP Global Sales and Marketing | 0.06% | 89,391 |
Claflin Bruce L.Director | 0.04% | 50,843 |
Gallagher PatrickDirector | 0.04% | 50,789 |
Gage BrodieSVP Global Products & Supply | 0.03% | 46,341 |
Cumello JosephSVP, General Mgr. Blue Planet | 0.03% | 46,175 |
Institutional holders 899
View all →| Holder | Value | % of shares |
|---|---|---|
| $6.24B | 8.98% | |
| $4.94B | 14.93% | |
| $3.36B | 10.16% | |
| $3.28B | 4.72% | |
| $2.54B | 7.68% | |
| $1.58B | 2.87% | |
| $539.05M | 0.98% | |
| $506.20M | 1.53% | |
| $467.86M | 0.85% | |
| $437.08M | 1.32% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q2 2026 as of | BlackRock, Inc. 13F manager | Trim | — | $-1.94B | -4.0M -23.70% | 12,718,494 8.98% of shares | high |
| Q2 2026 as of | State Street Corporation 13F manager | Add | — | $774.19M | +1.6M +30.93% | 6,680,578 4.72% of shares | high |
| Q1 2026 as of | Geode Capital Management, LLC 13F manager | Add | — | $534.28M | +1.4M +51.28% | 4,065,559 2.87% of shares | high |
| Q1 2026 as of | Arrowstreet Capital, Limited Partnership 13F manager | Trim | — | $-329.36M | -848K -37.93% | 1,388,477 0.98% of shares | high |
| Q1 2026 as of | Lone Pine Capital LLC 13F manager | New | — | $314.28M | +810K | 809,522 0.57% of shares | high |
| Q2 2026 as of | FengHe Fund Management Pte. Ltd. 13F manager | Trim | — | $-298.91M | -609K -92.18% | 51,667 0.04% of shares | high |
| Q1 2026 as of | Whale Rock Capital Management LLC 13F manager | Trim | — | $-257.09M | -662K -74.12% | 231,267 0.16% of shares | high |
| Q4 2025 as of | Bank of America Corp /De 13F manager | Trim | — | $-226.14M | -967K -30.88% | 2,164,447 1.53% of shares | high |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| JPMORGAN CHASE & CO | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| CIEN | — | 171779309 |