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SIMPLEX TRADING, LLC: STLA position timeline

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

SIMPLEX TRADING, LLC held 129,314 STLA 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 129,314 shares
    Change vs previous 13F -227,474 shares

    0.02% of the 13F portfolio, value $742,262.

    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 356,788 shares
    Change vs previous 13F +21,646 shares

    0.08% of the 13F portfolio, value $2,529,626.

    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 335,142 shares
    Change vs previous 13F -80,124 shares

    0.1% of the 13F portfolio, value $3,649,696.

    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 415,266 shares
    Change vs previous 13F +320,677 shares

    0.09% of the 13F portfolio, value $3,878,000.

    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 94,589 shares
    Change vs previous 13F -166,952 shares

    0.03% of the 13F portfolio, value $948,000.

    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 261,541 shares
    Change vs previous 13F -166,440 shares

    0.1% of the 13F portfolio, value $2,931,000.

    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 427,981 shares
    Change vs previous 13F -12,164 shares

    0.16% of the 13F portfolio, value $5,585,000.

    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 440,145 shares
    Change vs previous 13F not available

    0.21% of the 13F portfolio, value $6,184,000.

    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).