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Disclosery

GROUP ONE TRADING LLC: ALGN position timeline

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

GROUP ONE TRADING LLC held 1,146 ALGN 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 1,146 shares
    Change vs previous 13F -14,524 shares

    0.01% of the 13F portfolio, value $193,284.

    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 15,670 shares
    Change vs previous 13F +80 shares

    0.09% of the 13F portfolio, value $2,686,308.

    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 15,590 shares
    Change vs previous 13F -17,591 shares

    0.07% of the 13F portfolio, value $2,434,378.

    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 33,181 shares
    Change vs previous 13F +24,602 shares

    0.12% of the 13F portfolio, value $4,154,925.

    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 8,579 shares
    Change vs previous 13F -11,740 shares

    0.05% of the 13F portfolio, value $1,624,262.

    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 20,319 shares
    Change vs previous 13F +8,730 shares

    0.13% of the 13F portfolio, value $3,227,876.

    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 11,589 shares
    Change vs previous 13F +10,247 shares

    0.08% of the 13F portfolio, value $2,416,422.

    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 1,342 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $341,297.

    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).