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Disclosery

GF FUND MANAGEMENT CO. LTD.: CIEN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GF FUND MANAGEMENT CO. LTD. on CIEN, newest first. How the timeline and the estimate are built.

GF FUND MANAGEMENT CO. LTD. held 23,000 CIEN shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 23,000 shares
    Change vs previous 13F -84,979 shares

    0.14% of the 13F portfolio, value $11,282,880.

    13F-HR 0002057060-26-000006 filed by GF FUND MANAGEMENT CO. LTD.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 107,979 shares
    Change vs previous 13F -84,001 shares

    0.7% of the 13F portfolio, value $41,920,687.

    13F-HR 0002057060-26-000003 filed by GF FUND MANAGEMENT CO. LTD.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 191,980 shares
    Change vs previous 13F +77,425 shares

    0.77% of the 13F portfolio, value $44,898,363.

    13F-HR 0002057060-26-000001 filed by GF FUND MANAGEMENT CO. LTD.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 114,555 shares
    Change vs previous 13F not available

    0.3% of the 13F portfolio, value $16,687,227.

    13F-HR 0002057060-25-000010 filed by GF FUND MANAGEMENT CO. LTD.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).