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Disclosery

MARSHALL WACE, LLP: ARWR position timeline

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

MARSHALL WACE, LLP held 305,031 ARWR 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 305,031 shares
    Change vs previous 13F +125,458 shares

    0.02% of the 13F portfolio, value $24,863,076.

    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 179,573 shares
    Change vs previous 13F +55,718 shares

    0.01% of the 13F portfolio, value $11,259,227.

    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 123,855 shares
    Change vs previous 13F -1,312,985 shares

    0.01% of the 13F portfolio, value $8,222,733.

    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 1,436,840 shares
    Change vs previous 13F -719,158 shares

    0.05% of the 13F portfolio, value $49,556,613.

    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 2,155,998 shares
    Change vs previous 13F +2,096,238 shares

    0.04% of the 13F portfolio, value $34,064,769.

    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 59,760 shares
    Change vs previous 13F -26,873 shares

    <0.01% of the 13F portfolio, value $761,343.

    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 86,633 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,628,701.

    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).