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GF Fund Management Co. Ltd.

SEC CIK
0002057060
Latest filing
Aug 7, 2026

CIEN holding history

Ciena Corp in every 13F filed by GF Fund Management Co. Ltd., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

CIEN overviewAll 13F holders of CIENFull Q2 2026 holdings

Shares (Q2 2026)
23,000
Value
$11.3M
% of portfolio
0.1%
Quarters held
4
Since Q3 2025
Holdings of CIEN by GF Fund Management Co. Ltd., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202623,000$11.3M0.1%−84,979−78.7%ReducedHolders
Q1 2026107,979$41.9M0.7%−84,001−43.8%ReducedHolders
Q4 2025191,980$44.9M0.8%+77,425+67.6%AddedHolders
Q3 2025114,555$16.7M0.3%+114,555NewHolders