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OSTRUM ASSET MANAGEMENT

Position in CIEN — Ciena Corp

CIK 1767945 PARIS, I0

Position in CIEN

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$2,687,287
+$414,589 QoQ
Shares Held
5,478
-6.4% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.13%
of 13F equity value
Holder Rank
#465
of 1,218 holders
Holding Since
Jun 2025
5 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

OSTRUM ASSET MANAGEMENT holds $15,741,610 across 6 Communication Equipment names. CIEN ranks #2 (17.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 CIEN
Ciena Corp
This page
5,478 $2,687,287

All Filings in CIEN

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5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,687,287 5,478
2026-03-31 $2,272,698 5,854
2025-12-31 $627,005 2,681
2025-09-30 $735,633 5,050
2025-06-30 $820,619 10,090