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GREAT LAKES ADVISORS, LLC

Position in CIEN — Ciena Corp

CIK 1078013 CHICAGO, IL

Position in CIEN

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$217,408
New position
Shares Held
560
first reported quarter
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2026
1 quarter on record
Voting authority Sole 100% Shared 0% None 0%

Position in Communication Equipment

Technology · as of Mar 31, 2026

GREAT LAKES ADVISORS, LLC holds $234,072,141 across 8 Communication Equipment names. CIEN ranks #8 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 CIEN
Ciena Corp
This page
560 $217,408

All Filings in CIEN

Export CSV
1 filing row on record
Report Date Value (USD) Shares
2026-03-31 $217,408 560