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Disclosery

Horizon Investment Services, LLC: ATO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Horizon Investment Services, LLC on ATO, newest first. How the timeline and the estimate are built.

Horizon Investment Services, LLC held 2,618 ATO shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,618 shares
    Change vs previous 13F -15 shares

    0.13% of the 13F portfolio, value $451,116.

    13F-HR 0001426940-26-000011 filed by Horizon Investment Services, 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 2,633 shares
    Change vs previous 13F -251 shares

    0.17% of the 13F portfolio, value $486,454.

    13F-HR 0001426940-26-000004 filed by Horizon Investment Services, 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 2,884 shares
    Change vs previous 13F +104 shares

    0.17% of the 13F portfolio, value $483,501.

    13F-HR 0001426940-26-000002 filed by Horizon Investment Services, 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 2,780 shares
    Change vs previous 13F +5 shares

    0.18% of the 13F portfolio, value $474,690.

    13F-HR 0001426940-25-000004 filed by Horizon Investment Services, 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 2,775 shares
    Change vs previous 13F -130 shares

    0.19% of the 13F portfolio, value $427,686.

    13F-HR 0001085146-25-004575 filed by Horizon Investment Services, 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 2,905 shares
    Change vs previous 13F -28 shares

    0.22% of the 13F portfolio, value $449,091.

    13F-HR 0001085146-25-002606 filed by Horizon Investment Services, 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 2,933 shares
    Change vs previous 13F -44 shares

    0.17% of the 13F portfolio, value $408,486.

    13F-HR 0001085146-25-001047 filed by Horizon Investment Services, 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 2,977 shares
    Change vs previous 13F not available

    0.18% of the 13F portfolio, value $413,064.

    13F-HR 0001085146-24-005513 filed by Horizon Investment Services, LLC
    Filed (acceptance time not in the bulk data set), ingested

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