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Disclosery

ION Fund Management Ltd: CIEN position timeline

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

ION Fund Management Ltd held 0 CIEN shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 0 shares
    Change vs previous 13F -27,665 shares

    13F-HR 0001178913-26-004149 filed by ION Fund Management Ltd
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2026-03-31
    13F 27,665 shares
    Change vs previous 13F -48,335 shares

    1.64% of the 13F portfolio, value $10,740,383.

    13F-HR 0001178913-26-002740 filed by ION Fund 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 76,000 shares
    Change vs previous 13F not available

    2.27% of the 13F portfolio, value $17,774,120.

    13F-HR 0001178913-26-000526 filed by ION Fund Management Ltd
    Filed (acceptance time not in the bulk data set), ingested

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