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Disclosery

GROUP ONE TRADING LLC: BZFD position timeline

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

GROUP ONE TRADING LLC held 50,240 BZFD shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 50,240 shares
    Change vs previous 13F -98,830 shares

    <0.01% of the 13F portfolio, value $73,350.

    13F-HR 0000932540-26-000011 filed by GROUP ONE 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 149,070 shares
    Change vs previous 13F +7,127 shares

    <0.01% of the 13F portfolio, value $90,724.

    13F-HR 0000932540-26-000005 filed by GROUP ONE 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 141,943 shares
    Change vs previous 13F +125,768 shares

    <0.01% of the 13F portfolio, value $132,021.

    13F-HR 0000932540-26-000002 filed by GROUP ONE 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 16,175 shares
    Change vs previous 13F -144,689 shares

    <0.01% of the 13F portfolio, value $27,498.

    13F-HR 0000932540-25-000040 filed by GROUP ONE 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 160,864 shares
    Change vs previous 13F +48,166 shares

    0.01% of the 13F portfolio, value $321,728.

    13F-HR 0000932540-25-000034 filed by GROUP ONE 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 112,698 shares
    Change vs previous 13F -63,471 shares

    0.01% of the 13F portfolio, value $240,047.

    13F-HR 0000932540-25-000027 filed by GROUP ONE 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/A 176,169 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $470,371.

    13F-HR/A 0000932540-25-000028 filed by GROUP ONE TRADING LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).