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Disclosery

MARSHALL WACE, LLP: ARTNA position timeline

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

MARSHALL WACE, LLP held 52,197 ARTNA 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 52,197 shares
    Change vs previous 13F -48,518 shares

    <0.01% of the 13F portfolio, value $1,774,176.

    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 100,715 shares
    Change vs previous 13F +48,695 shares

    <0.01% of the 13F portfolio, value $3,207,771.

    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 52,020 shares
    Change vs previous 13F +7,811 shares

    <0.01% of the 13F portfolio, value $1,644,351.

    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 44,209 shares
    Change vs previous 13F -24,901 shares

    <0.01% of the 13F portfolio, value $1,440,772.

    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 69,110 shares
    Change vs previous 13F -9,545 shares

    <0.01% of the 13F portfolio, value $2,319,332.

    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 78,655 shares
    Change vs previous 13F +15,441 shares

    <0.01% of the 13F portfolio, value $2,568,086.

    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 63,214 shares
    Change vs previous 13F +9,438 shares

    <0.01% of the 13F portfolio, value $1,998,826.

    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 53,776 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,999,391.

    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).