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Disclosery

SIMPLEX TRADING, LLC: QS position timeline

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

SIMPLEX TRADING, LLC held 260,905 QS 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 260,905 shares
    Change vs previous 13F +201,677 shares

    0.05% of the 13F portfolio, value $1,972,441.

    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 59,228 shares
    Change vs previous 13F +59,228 shares

    0.01% of the 13F portfolio, value $377,874.

    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 ended2025-09-30
    13F 0 shares
    Change vs previous 13F -358,479 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  4. period ended2025-06-30
    13F 358,479 shares
    Change vs previous 13F -268,770 shares

    0.06% of the 13F portfolio, value $2,408,000.

    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).

  5. period ended2025-03-31
    13F 627,249 shares
    Change vs previous 13F -276,694 shares

    0.09% of the 13F portfolio, value $2,609,000.

    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).

  6. period ended2024-12-31
    13F 903,943 shares
    Change vs previous 13F +408,472 shares

    0.13% of the 13F portfolio, value $4,691,000.

    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).

  7. period ended2024-09-30
    13F 495,471 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $2,848,000.

    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).