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Disclosery

North Growth Management Ltd.: CIEN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of North Growth Management Ltd. on CIEN, newest first. How the timeline and the estimate are built.

North Growth Management Ltd. held 113,000 CIEN shares at 2026-06-30 per its 13F-HR filed 2026-07-22.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 113,000 shares
    Change vs previous 13F -44,000 shares

    7.11% of the 13F portfolio, value $55,474,000.

    13F-HR 0001745796-26-000004 filed by North Growth Management 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 157,000 shares
    Change vs previous 13F -90,000 shares

    9.34% of the 13F portfolio, value $61,030,000.

    13F-HR 0001745796-26-000003 filed by North Growth Management 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 247,000 shares
    Change vs previous 13F -78,000 shares

    9.03% of the 13F portfolio, value $57,728,000.

    13F-HR 0001745796-26-000001 filed by North Growth Management 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 325,000 shares
    Change vs previous 13F -82,000 shares

    8.24% of the 13F portfolio, value $47,349,000.

    13F-HR 0001745796-25-000007 filed by North Growth Management Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F 407,000 shares
    Change vs previous 13F -22,000 shares

    6.21% of the 13F portfolio, value $33,069,000.

    13F-HR 0001745796-25-000006 filed by North Growth Management Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-03-31
    13F 429,000 shares
    Change vs previous 13F -29,000 shares

    5.48% of the 13F portfolio, value $25,951,000.

    13F-HR 0001745796-25-000002 filed by North Growth Management Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 458,000 shares
    Change vs previous 13F -73,000 shares

    7.38% of the 13F portfolio, value $38,874,000.

    13F-HR 0001745796-25-000001 filed by North Growth Management Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 531,000 shares
    Change vs previous 13F not available

    6.08% of the 13F portfolio, value $32,677,000.

    13F-HR 0001745796-24-000004 filed by North Growth Management Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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