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WELLINGTON MANAGEMENT GROUP LLP

Position in CIEN — Ciena Corp

CIK 902219 Boston, MA

Position in CIEN

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$30,826,298
-$25,225,184 QoQ
Shares Held
62,839
-56.5% QoQ
Ownership
0.044%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#159
of 1,225 holders
Holding Since
Mar 2020
14 quarters on record
Voting authority Sole 0% Shared 94% None 6%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $2,698,461,049 across 16 Communication Equipment names. CIEN ranks #7 (1.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 CIEN
Ciena Corp
This page
62,839 $30,826,298

All Filings in CIEN

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14 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $30,826,298 62,839
2026-03-31 $56,051,482 144,377
2025-12-31 $25,138,216 107,488
2023-06-30 $962,865 22,661
2023-03-31 $1,320,510 25,143
2022-12-31 $454,129 8,908
2021-12-31 $141,516,039 1,838,587
2021-09-30 $152,124,579 2,962,504
2021-06-30 $169,931,793 2,987,024
2021-03-31 $175,101,098 3,199,947
2020-12-31 $175,942,035 3,329,083
2020-09-30 $117,205,045 2,953,012
2020-06-30 $147,265,588 2,719,084
2020-03-31 $131,792,436 3,310,536