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MARSHALL WACE, LLP: PFE position timeline

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

MARSHALL WACE, LLP held 802,396 PFE 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 802,396 shares
    Change vs previous 13F -15,280,392 shares

    0.02% of the 13F portfolio, value $19,321,743.

    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 16,082,788 shares
    Change vs previous 13F +3,420,874 shares

    0.48% of the 13F portfolio, value $451,604,686.

    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 12,661,914 shares
    Change vs previous 13F +5,682,612 shares

    0.3% of the 13F portfolio, value $315,281,659.

    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 6,979,302 shares
    Change vs previous 13F +6,531,391 shares

    0.2% of the 13F portfolio, value $177,832,616.

    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 447,911 shares
    Change vs previous 13F -13,641,127 shares

    0.01% of the 13F portfolio, value $10,857,363.

    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 14,089,038 shares
    Change vs previous 13F +6,329,548 shares

    0.48% of the 13F portfolio, value $357,016,224.

    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 7,759,490 shares
    Change vs previous 13F -6,970,717 shares

    0.26% of the 13F portfolio, value $205,859,272.

    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 14,730,207 shares
    Change vs previous 13F not available

    0.55% of the 13F portfolio, value $426,292,191.

    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).