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Disclosery

MARSHALL WACE, LLP: CIEN position timeline

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

MARSHALL WACE, LLP held 45,101 CIEN shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 45,101 shares
    Change vs previous 13F -80,876 shares

    0.02% of the 13F portfolio, value $22,124,747.

    13F-HR 0001318757-26-000010 filed by MARSHALL WACE, LLP
    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 125,977 shares
    Change vs previous 13F +72,776 shares

    0.05% of the 13F portfolio, value $48,908,050.

    13F-HR 0001318757-26-000005 filed by MARSHALL WACE, LLP
    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 53,201 shares
    Change vs previous 13F -136,192 shares

    0.01% of the 13F portfolio, value $12,442,118.

    13F-HR 0001318757-26-000003 filed by MARSHALL WACE, LLP
    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 189,393 shares
    Change vs previous 13F +27,708 shares

    0.03% of the 13F portfolio, value $27,588,879.

    13F-HR 0001318757-25-000046 filed by MARSHALL WACE, LLP
    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 161,685 shares
    Change vs previous 13F -399,488 shares

    0.02% of the 13F portfolio, value $13,149,841.

    13F-HR 0001318757-25-000034 filed by MARSHALL WACE, LLP
    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 561,173 shares
    Change vs previous 13F -338,655 shares

    0.05% of the 13F portfolio, value $33,911,686.

    13F-HR 0001318757-25-000023 filed by MARSHALL WACE, LLP
    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 899,828 shares
    Change vs previous 13F +878,979 shares

    0.1% of the 13F portfolio, value $76,314,414.

    13F-HR 0002048047-25-000005 filed by MARSHALL WACE, LLP
    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 20,849 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,284,090.

    13F-HR 0001318757-24-000018 filed by MARSHALL WACE, LLP
    Filed (acceptance time not in the bulk data set), ingested

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