Skip to main content

BROWN BROTHERS HARRIMAN & CO

Position in CIEN — Ciena Corp

CIK 14661 NEW YORK, NY

Position in CIEN

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$1,207,758
+$550,097 QoQ
Shares Held
2,462
+45.3% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#601
of 1,218 holders
Holding Since
Jun 2020
6 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

BROWN BROTHERS HARRIMAN & CO holds $50,767,585 across 9 Communication Equipment names. CIEN ranks #5 (2.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 CIEN
Ciena Corp
This page
2,462 $1,207,758

All Filings in CIEN

Export CSV
6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,207,758 2,462
2026-03-31 $657,661 1,694
2023-03-31 $3,728 71
2022-09-30 $30,443 753
2020-09-30 $39 1
2020-06-30 $54 1