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Disclosery

Ion Asset Management Ltd.: CIEN position timeline

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

Ion Asset Management Ltd. held 211,924 CIEN shares at 2025-09-30 per its 13F-HR filed 2025-11-14.

the latest 13F is the newest step

  1. period ended2025-09-30
    13F 211,924 shares
    Change vs previous 13F -999,340 shares

    3.77% of the 13F portfolio, value $30,870,969.

    13F-HR 0001178913-25-003858 filed by Ion Asset 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 ended2025-06-30
    13F 1,211,264 shares
    Change vs previous 13F -145,488 shares

    5.95% of the 13F portfolio, value $98,512,101.

    13F-HR 0001178913-25-002938 filed by Ion Asset 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 ended2025-03-31
    13F 1,356,752 shares
    Change vs previous 13F +80,426 shares

    6.03% of the 13F portfolio, value $81,988,523.

    13F-HR 0001178913-25-001827 filed by Ion Asset 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 ended2024-12-31
    13F 1,276,326 shares
    Change vs previous 13F -130,953 shares

    6.5% of the 13F portfolio, value $108,245,208.

    13F-HR 0001178913-25-000500 filed by Ion Asset 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 ended2024-09-30
    13F 1,407,279 shares
    Change vs previous 13F -150,200 shares

    5.65% of the 13F portfolio, value $86,674,313.

    13F-HR 0001178913-24-003720 filed by Ion Asset 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 ended2024-06-30
    13F 1,557,479 shares
    Change vs previous 13F -316,300 shares

    5% of the 13F portfolio, value $75,039,338.

    13F-HR 0001178913-24-002614 filed by Ion Asset 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 ended2024-03-31
    13F 1,873,779 shares
    Change vs previous 13F -289,801 shares

    6.77% of the 13F portfolio, value $92,658,372.

    13F-HR 0001178913-24-001747 filed by Ion Asset 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 ended2023-12-31
    13F 2,163,580 shares
    Change vs previous 13F not available

    8.19% of the 13F portfolio, value $97,382,736.

    13F-HR 0001178913-24-000593 filed by Ion Asset Management Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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