Skip to content
Disclosery

SIMPLEX TRADING, LLC: GPK position timeline

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

SIMPLEX TRADING, LLC held 20,151 GPK 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 20,151 shares
    Change vs previous 13F -16,134 shares

    0.01% of the 13F portfolio, value $212,996.

    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 36,285 shares
    Change vs previous 13F +10,439 shares

    0.01% of the 13F portfolio, value $360,672.

    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 25,846 shares
    Change vs previous 13F +21,456 shares

    0.01% of the 13F portfolio, value $389,240.

    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 4,390 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $85,000.

    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).