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Disclosery

GROUP ONE TRADING LLC: GPRO position timeline

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

GROUP ONE TRADING LLC held 1,012,641 GPRO 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 1,012,641 shares
    Change vs previous 13F +386,643 shares

    0.02% of the 13F portfolio, value $787,835.

    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 625,998 shares
    Change vs previous 13F -102,953 shares

    0.02% of the 13F portfolio, value $482,018.

    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 728,951 shares
    Change vs previous 13F -533,218 shares

    0.03% of the 13F portfolio, value $1,027,821.

    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 1,262,169 shares
    Change vs previous 13F +955,879 shares

    0.08% of the 13F portfolio, value $2,675,798.

    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 306,290 shares
    Change vs previous 13F +211,004 shares

    0.01% of the 13F portfolio, value $231,953.

    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 95,286 shares
    Change vs previous 13F +24,534 shares

    <0.01% of the 13F portfolio, value $63,165.

    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 70,752 shares
    Change vs previous 13F +4,304 shares

    <0.01% of the 13F portfolio, value $77,120.

    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).

  8. period ended2024-09-30
    13F 66,448 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $90,369.

    13F-HR 0000932540-24-000015 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).