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SIMPLEX TRADING, LLC: SITM position timeline

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

SIMPLEX TRADING, LLC held 731 SITM 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 731 shares
    Change vs previous 13F -90 shares

    0.01% of the 13F portfolio, value $545,004.

    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 821 shares
    Change vs previous 13F -279 shares

    0.01% of the 13F portfolio, value $283,532.

    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 1,100 shares
    Change vs previous 13F +88 shares

    0.01% of the 13F portfolio, value $388,509.

    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 1,012 shares
    Change vs previous 13F +770 shares

    0.01% of the 13F portfolio, value $304,000.

    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 242 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $51,000.

    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).