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Disclosery

GROUP ONE TRADING LLC: SRPT position timeline

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

GROUP ONE TRADING LLC held 20,512 SRPT 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 20,512 shares
    Change vs previous 13F -79,403 shares

    0.01% of the 13F portfolio, value $368,601.

    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 99,915 shares
    Change vs previous 13F -40,859 shares

    0.07% of the 13F portfolio, value $2,174,150.

    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 140,774 shares
    Change vs previous 13F +18,433 shares

    0.09% of the 13F portfolio, value $3,029,456.

    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 122,341 shares
    Change vs previous 13F -19,993 shares

    0.07% of the 13F portfolio, value $2,357,511.

    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 142,334 shares
    Change vs previous 13F +89,779 shares

    0.08% of the 13F portfolio, value $2,433,911.

    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 52,555 shares
    Change vs previous 13F -1,573 shares

    0.14% of the 13F portfolio, value $3,354,060.

    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 54,128 shares
    Change vs previous 13F +17,083 shares

    0.22% of the 13F portfolio, value $6,581,424.

    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 37,045 shares
    Change vs previous 13F not available

    0.18% of the 13F portfolio, value $4,626,550.

    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).