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DEAN INVESTMENT ASSOCIATES, LLC: ATO position timeline

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

DEAN INVESTMENT ASSOCIATES, LLC held 41,825 ATO shares at 2026-06-30 per its 13F-HR/A filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 41,825 shares
    Change vs previous 13F +548 shares

    0.69% of the 13F portfolio, value $7,205,193.

    13F-HR/A 0000846797-26-000004 filed by DEAN INVESTMENT ASSOCIATES, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • DEAN INVESTMENT ASSOCIATES, LLC: 27,954 shares
    • Dean Capital Management: 13,871 shares

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

  2. period ended2026-03-31
    13F 41,277 shares
    Change vs previous 13F +653 shares

    0.8% of the 13F portfolio, value $7,624,687.

    13F-HR 0000846797-26-000002 filed by DEAN INVESTMENT ASSOCIATES, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • DEAN INVESTMENT ASSOCIATES, LLC: 27,406 shares
    • Dean Capital Management: 13,871 shares

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

  3. period ended2025-12-31
    13F 40,624 shares
    Change vs previous 13F +922 shares

    0.73% of the 13F portfolio, value $6,809,801.

    13F-HR 0000846797-26-000001 filed by DEAN INVESTMENT ASSOCIATES, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • DEAN INVESTMENT ASSOCIATES, LLC: 26,751 shares
    • Dean Capital Management: 13,873 shares

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

  4. period ended2025-09-30
    13F 39,702 shares
    Change vs previous 13F +1,611 shares

    0.7% of the 13F portfolio, value $6,779,116.

    13F-HR 0000846797-25-000005 filed by DEAN INVESTMENT ASSOCIATES, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • DEAN INVESTMENT ASSOCIATES, LLC: 26,263 shares
    • Dean Capital Management: 13,439 shares

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

  5. period ended2025-06-30
    13F 38,091 shares
    Change vs previous 13F +1,659 shares

    0.64% of the 13F portfolio, value $5,870,204.

    13F-HR 0000846797-25-000004 filed by DEAN INVESTMENT ASSOCIATES, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • DEAN INVESTMENT ASSOCIATES, LLC: 24,652 shares
    • Dean Capital Management: 13,439 shares

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

  6. period ended2025-03-31
    13F 36,432 shares
    Change vs previous 13F +1,419 shares

    0.62% of the 13F portfolio, value $5,631,659.

    13F-HR 0000846797-25-000003 filed by DEAN INVESTMENT ASSOCIATES, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • DEAN INVESTMENT ASSOCIATES, LLC: 23,712 shares
    • Dean Capital Management: 12,720 shares

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

  7. period ended2024-12-31
    13F 35,013 shares
    Change vs previous 13F -2,685 shares

    0.52% of the 13F portfolio, value $4,876,260.

    13F-HR 0000846797-25-000001 filed by DEAN INVESTMENT ASSOCIATES, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • DEAN INVESTMENT ASSOCIATES, LLC: 22,601 shares
    • Dean Capital Management: 12,412 shares

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

  8. period ended2024-09-30
    13F 37,698 shares
    Change vs previous 13F not available

    0.54% of the 13F portfolio, value $5,229,089.

    13F-HR 0000846797-24-000003 filed by DEAN INVESTMENT ASSOCIATES, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • DEAN INVESTMENT ASSOCIATES, LLC: 24,072 shares
    • Dean Capital Management: 13,626 shares

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