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Capital World Investors

Position in CIEN — Ciena Corp

CIK 1422849 LOS ANGELES, CA

Position in CIEN

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$861,228,117
+$191,606,296 QoQ
Shares Held
1,755,602
+1.8% QoQ
Ownership
1.24%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
#11
of 1,218 holders
Holding Since
Mar 2022
15 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

Capital World Investors holds $5,017,154,064 across 7 Communication Equipment names. CIEN ranks #2 (17.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 CIEN
Ciena Corp
This page
1,755,602 $861,228,117

All Filings in CIEN

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15 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $861,228,117 1,755,602
2026-03-31 $669,621,821 1,724,807
2025-12-31 $437,075,199 1,868,881
2025-09-30 $267,593,022 1,836,981
2025-06-30 $138,787,530 1,706,474
2025-03-31 $111,977,333 1,853,009
2024-03-31 $58,429,674 1,181,591
2023-12-31 $158,148,621 3,513,633
2023-09-30 $128,661,474 2,722,418
2023-06-30 $115,663,006 2,722,123
2023-03-31 $142,965,899 2,722,123
2022-12-31 $170,521,880 3,344,878
2022-09-30 $135,251,813 3,345,333
2022-06-30 $102,080,547 2,233,710
2022-03-31 $108,563,774 1,790,595