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Disclosery

MARSHALL WACE, LLP: STEM position timeline

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

MARSHALL WACE, LLP held 405,608 STEM 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 405,608 shares
    Change vs previous 13F +114,268 shares

    <0.01% of the 13F portfolio, value $3,167,799.

    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 291,340 shares
    Change vs previous 13F +124,093 shares

    <0.01% of the 13F portfolio, value $2,575,447.

    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 167,247 shares
    Change vs previous 13F -76,511 shares

    <0.01% of the 13F portfolio, value $2,517,069.

    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 243,758 shares
    Change vs previous 13F +213,686 shares

    <0.01% of the 13F portfolio, value $4,270,641.

    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 30,072 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $187,349.

    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).