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SIMPLEX TRADING, LLC: PFE position timeline

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

SIMPLEX TRADING, LLC held 640,977 PFE shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 640,977 shares
    Change vs previous 13F -625,708 shares

    0.4% of the 13F portfolio, value $15,434,726.

    13F-HR 0001488542-26-000011 filed by SIMPLEX TRADING, LLC
    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 1,266,685 shares
    Change vs previous 13F -224,352 shares

    1.1% of the 13F portfolio, value $35,568,514.

    13F-HR 0001488542-26-000009 filed by SIMPLEX TRADING, LLC
    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 1,491,037 shares
    Change vs previous 13F +194,547 shares

    1.04% of the 13F portfolio, value $37,126,821.

    13F-HR 0001488542-26-000002 filed by SIMPLEX TRADING, LLC
    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 1,296,490 shares
    Change vs previous 13F +1,262,307 shares

    0.73% of the 13F portfolio, value $33,034,000.

    13F-HR 0001488542-25-000018 filed by SIMPLEX TRADING, LLC
    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 34,183 shares
    Change vs previous 13F -1,582,619 shares

    0.02% of the 13F portfolio, value $828,000.

    13F-HR 0001488542-25-000010 filed by SIMPLEX TRADING, LLC
    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 1,616,802 shares
    Change vs previous 13F +50,149 shares

    1.45% of the 13F portfolio, value $40,969,000.

    13F-HR 0001488542-25-000007 filed by SIMPLEX TRADING, LLC
    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 1,566,653 shares
    Change vs previous 13F +1,303,687 shares

    1.17% of the 13F portfolio, value $41,563,000.

    13F-HR 0001488542-25-000001 filed by SIMPLEX TRADING, LLC
    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 262,966 shares
    Change vs previous 13F not available

    0.26% of the 13F portfolio, value $7,610,000.

    13F-HR 0001488542-24-000015 filed by SIMPLEX TRADING, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).