Who owns CIEN? 13F holders and whale ownership
CIEN is tracked across public portfolios in Whale Analyzer. This page answers who owns CIEN, which top funds are buying CIEN, aggregate disclosed value, and recent position changes based on public data.
Open interactive stock dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Stephen Mandel 13F portfolio Lone Pine Capital holdings | $314.3M | 809.5K | New |
| Gavin Baker 13F portfolio Atreides Management holdings | $262.8M | 676.8K | Reduced |
| Whale Rock Capital 13F portfolio Whale Rock Capital Management holdings | $89.8M | 231.3K | Reduced |
| Ray Dalio 13F portfolio Bridgewater Associates holdings | $55.8M | 143.8K | Reduced |
How to read this page
Values are reported public positions from tracked investors and institutions. They are not real-time ownership totals for the company.
Related stock holder pages
- VST whale holders — VISTRA CORP
- ASML whale holders — ASML HLDG NV
- CRS whale holders — CARPENTER TECHNOLOGY CORP
- LPLA whale holders — LPL FINL HLDGS INC
- APP whale holders — APPLOVIN CORP
- TLN whale holders — TALEN ENERGY CORP
- TER whale holders — TERADYNE INC
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Learn more in Whale Analyzer Academy
Frequently asked questions
Who owns CIEN stock?
Whale Analyzer tracks 4 public institutional holders of CIEN with a combined reported value of $722.7M. See the holder table above for the largest tracked positions.
Which top funds are buying CIEN?
Check the "Change" column in the holders table above. "New" means a fresh position was initiated, "Added" means an existing position was increased, and "Reduced" or "Sold" indicates trimming.
What does 13F ownership mean for CIEN?
Use the interactive CIEN dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.