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Disclosery

MARSHALL WACE, LLP: MRBK position timeline

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

MARSHALL WACE, LLP held 87,067 MRBK 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 87,067 shares
    Change vs previous 13F +20,529 shares

    <0.01% of the 13F portfolio, value $1,743,954.

    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 66,538 shares
    Change vs previous 13F -50,034 shares

    <0.01% of the 13F portfolio, value $1,261,561.

    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 116,572 shares
    Change vs previous 13F +10,574 shares

    <0.01% of the 13F portfolio, value $2,049,337.

    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 105,998 shares
    Change vs previous 13F +5,199 shares

    <0.01% of the 13F portfolio, value $1,673,710.

    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 100,799 shares
    Change vs previous 13F -10,751 shares

    <0.01% of the 13F portfolio, value $1,299,299.

    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 111,550 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,606,319.

    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).