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Disclosery

MARSHALL WACE, LLP: CECO position timeline

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

MARSHALL WACE, LLP held 57,886 CECO 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 57,886 shares
    Change vs previous 13F -194,018 shares

    <0.01% of the 13F portfolio, value $5,252,575.

    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 251,904 shares
    Change vs previous 13F +244,104 shares

    0.02% of the 13F portfolio, value $15,008,439.

    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 7,800 shares
    Change vs previous 13F -27,199 shares

    <0.01% of the 13F portfolio, value $466,830.

    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 34,999 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,791,949.

    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).