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SIMPLEX TRADING, LLC: BURL position timeline

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

SIMPLEX TRADING, LLC held 0 BURL shares at 2026-03-31 per its 13F-HR filed 2026-05-14.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -2,474 shares

    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).

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

  2. period ended2025-12-31
    13F 2,474 shares
    Change vs previous 13F -4,350 shares

    0.02% of the 13F portfolio, value $714,614.

    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).

  3. period ended2025-09-30
    13F 6,824 shares
    Change vs previous 13F -2,135 shares

    0.04% of the 13F portfolio, value $1,736,000.

    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).

  4. period ended2025-06-30
    13F 8,959 shares
    Change vs previous 13F -3,479 shares

    0.06% of the 13F portfolio, value $2,084,000.

    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 12,438 shares
    Change vs previous 13F +7,076 shares

    0.11% of the 13F portfolio, value $2,964,000.

    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 5,362 shares
    Change vs previous 13F +244 shares

    0.04% of the 13F portfolio, value $1,528,000.

    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 5,118 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $1,348,000.

    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).