Skip to main content

WELLINGTON MANAGEMENT GROUP LLP

Position in CIEN — Ciena Corp

CIK 902219 Boston, MA

Position in CIEN

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$56,051,482
+$30,913,266 QoQ
Shares Held
144,377
+34.3% QoQ
Ownership
0.102%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
13 quarters on record
Voting authority Sole 0.ToString("F0")% Shared 91.66349210746864.ToString("F0")% None 8.336507892531358.ToString("F0")%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Mar 31, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $3,492,978,616 across 16 Communication Equipment names. CIEN ranks #7 (1.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 CIEN
Ciena Corp
This page
144,377 $56,051,482

All Filings in CIEN

Export CSV
13 filing rows on record
Report Date Value (USD) Shares
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