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MARTINGALE ASSET MANAGEMENT L P: ATEN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MARTINGALE ASSET MANAGEMENT L P on ATEN, newest first. How the timeline and the estimate are built.

MARTINGALE ASSET MANAGEMENT L P held 33,684 ATEN shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 33,684 shares
    Change vs previous 13F -62,539 shares

    0.03% of the 13F portfolio, value $1,258,435.

    13F-HR 0000936944-26-000006 filed by MARTINGALE ASSET MANAGEMENT L P
    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 96,223 shares
    Change vs previous 13F -4,287 shares

    0.06% of the 13F portfolio, value $2,224,676.

    13F-HR 0000936944-26-000003 filed by MARTINGALE ASSET MANAGEMENT L P
    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 100,510 shares
    Change vs previous 13F -783 shares

    0.05% of the 13F portfolio, value $1,778,023.

    13F-HR 0000936944-26-000002 filed by MARTINGALE ASSET MANAGEMENT L P
    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 101,293 shares
    Change vs previous 13F -642 shares

    0.05% of the 13F portfolio, value $1,838,468.

    13F-HR 0000936944-25-000010 filed by MARTINGALE ASSET MANAGEMENT L P
    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 101,935 shares
    Change vs previous 13F +1,062 shares

    0.05% of the 13F portfolio, value $1,972,443.

    13F-HR 0000936944-25-000008 filed by MARTINGALE ASSET MANAGEMENT L P
    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 100,873 shares
    Change vs previous 13F 0 shares

    0.04% of the 13F portfolio, value $1,648,266.

    13F-HR 0000936944-25-000005 filed by MARTINGALE ASSET MANAGEMENT L P
    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 100,873 shares
    Change vs previous 13F -178 shares

    0.05% of the 13F portfolio, value $1,856,064.

    13F-HR 0000936944-25-000003 filed by MARTINGALE ASSET MANAGEMENT L P
    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 101,051 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $1,459,177.

    13F-HR 0000936944-24-000007 filed by MARTINGALE ASSET MANAGEMENT L P
    Filed (acceptance time not in the bulk data set), ingested

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