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Disclosery

GROUP ONE TRADING LLC: LUMN position timeline

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

GROUP ONE TRADING LLC held 474,565 LUMN 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 474,565 shares
    Change vs previous 13F -77,671 shares

    0.11% of the 13F portfolio, value $3,644,659.

    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 552,236 shares
    Change vs previous 13F -23,484 shares

    0.13% of the 13F portfolio, value $3,838,040.

    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 575,720 shares
    Change vs previous 13F +433,371 shares

    0.13% of the 13F portfolio, value $4,473,344.

    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 142,349 shares
    Change vs previous 13F -146,447 shares

    0.03% of the 13F portfolio, value $871,176.

    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 288,796 shares
    Change vs previous 13F +94,413 shares

    0.04% of the 13F portfolio, value $1,264,926.

    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 194,383 shares
    Change vs previous 13F -423,725 shares

    0.03% of the 13F portfolio, value $761,981.

    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 618,108 shares
    Change vs previous 13F +5,389 shares

    0.11% of the 13F portfolio, value $3,282,153.

    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 612,719 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $4,350,305.

    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).