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MARTINGALE ASSET MANAGEMENT L P: AMG position timeline

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

MARTINGALE ASSET MANAGEMENT L P held 798 AMG 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 798 shares
    Change vs previous 13F -3,763 shares

    0.01% of the 13F portfolio, value $270,044.

    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 4,561 shares
    Change vs previous 13F -988 shares

    0.03% of the 13F portfolio, value $1,262,029.

    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 5,549 shares
    Change vs previous 13F -213 shares

    0.04% of the 13F portfolio, value $1,599,666.

    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 5,762 shares
    Change vs previous 13F -890 shares

    0.03% of the 13F portfolio, value $1,373,834.

    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 6,652 shares
    Change vs previous 13F -1,813 shares

    0.03% of the 13F portfolio, value $1,308,915.

    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 8,465 shares
    Change vs previous 13F -9,219 shares

    0.04% of the 13F portfolio, value $1,422,374.

    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 17,684 shares
    Change vs previous 13F -12,306 shares

    0.08% of the 13F portfolio, value $3,270,126.

    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 29,990 shares
    Change vs previous 13F not available

    0.12% of the 13F portfolio, value $5,332,222.

    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).