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Disclosery

SG Americas Securities, LLC: ATI position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of SG Americas Securities, LLC on ATI, newest first. How the timeline and the estimate are built.

SG Americas Securities, LLC held 489,505 ATI shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 489,505 shares
    Change vs previous 13F -585,863 shares

    0.06% of the 13F portfolio, value $96,481,000.

    13F-HR 0001313360-26-000003 filed by SG Americas Securities, 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 1,075,368 shares
    Change vs previous 13F +1,006,951 shares

    0.17% of the 13F portfolio, value $156,423,000.

    13F-HR 0001313360-26-000002 filed by SG Americas Securities, 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 68,417 shares
    Change vs previous 13F +62,529 shares

    0.01% of the 13F portfolio, value $7,852,000.

    13F-HR 0001313360-26-000001 filed by SG Americas Securities, 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 5,888 shares
    Change vs previous 13F -17,748 shares

    <0.01% of the 13F portfolio, value $479,000.

    13F-HR 0001313360-25-000008 filed by SG Americas Securities, 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 23,636 shares
    Change vs previous 13F +160 shares

    0.01% of the 13F portfolio, value $2,041,000.

    13F-HR 0001313360-25-000006 filed by SG Americas Securities, 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 23,476 shares
    Change vs previous 13F +18,960 shares

    <0.01% of the 13F portfolio, value $1,221,000.

    13F-HR 0001313360-25-000005 filed by SG Americas Securities, 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 4,516 shares
    Change vs previous 13F +4,516 shares

    <0.01% of the 13F portfolio, value $249,000.

    13F-HR 0001313360-25-000001 filed by SG Americas Securities, 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 0 shares
    Change vs previous 13F not available

    13F-HR 0001313360-24-000010 filed by SG Americas Securities, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.