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MILLENNIUM MANAGEMENT LLC: CIEN position timeline

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

MILLENNIUM MANAGEMENT LLC held 166,420 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 166,420 shares
    Change vs previous 13F +75,704 shares

    0.06% of the 13F portfolio, value $81,638,995.

    13F-HR 0001273087-26-000007 filed by MILLENNIUM MANAGEMENT LLC
    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 90,716 shares
    Change vs previous 13F -331,900 shares

    0.03% of the 13F portfolio, value $35,218,673.

    13F-HR 0001273087-26-000004 filed by MILLENNIUM MANAGEMENT LLC
    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 422,616 shares
    Change vs previous 13F -81,267 shares

    0.07% of the 13F portfolio, value $98,837,204.

    13F-HR 0001273087-26-000002 filed by MILLENNIUM MANAGEMENT LLC
    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 503,883 shares
    Change vs previous 13F +232,357 shares

    0.06% of the 13F portfolio, value $73,400,637.

    13F-HR 0001273087-25-000034 filed by MILLENNIUM MANAGEMENT LLC
    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 271,526 shares
    Change vs previous 13F -362,525 shares

    0.02% of the 13F portfolio, value $22,083,210.

    13F-HR 0001273087-25-000028 filed by MILLENNIUM MANAGEMENT LLC
    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 634,051 shares
    Change vs previous 13F +402,879 shares

    0.04% of the 13F portfolio, value $38,315,702.

    13F-HR 0001273087-25-000019 filed by MILLENNIUM MANAGEMENT LLC
    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 231,172 shares
    Change vs previous 13F -181,586 shares

    0.02% of the 13F portfolio, value $19,605,697.

    13F-HR 0001273087-25-000015 filed by MILLENNIUM MANAGEMENT LLC
    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 412,758 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $25,421,765.

    13F-HR 0001273087-24-000118 filed by MILLENNIUM MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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