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GREAT LAKES ADVISORS, LLC

Position in CIEN — Ciena Corp

CIK 1078013 CHICAGO, IL

Position in CIEN

as of Jun 30, 2026 · filed Aug 10, 2026
Position Value
$256,071
+$38,663 QoQ
Shares Held
522
-6.8% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#956
of 1,227 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Jun 30, 2026

GREAT LAKES ADVISORS, LLC holds $272,989,399 across 7 Communication Equipment names. CIEN ranks #7 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 CIEN
Ciena Corp
This page
522 $256,071

All Filings in CIEN

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2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $256,071 522
2026-03-31 $217,408 560