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MARTINGALE ASSET MANAGEMENT L P: AMCX position timeline

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

MARTINGALE ASSET MANAGEMENT L P held 137,643 AMCX 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 137,643 shares
    Change vs previous 13F -19 shares

    0.03% of the 13F portfolio, value $1,373,678.

    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 137,662 shares
    Change vs previous 13F -6 shares

    0.02% of the 13F portfolio, value $934,725.

    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 137,668 shares
    Change vs previous 13F +6,128 shares

    0.03% of the 13F portfolio, value $1,310,600.

    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 131,540 shares
    Change vs previous 13F +28,111 shares

    0.03% of the 13F portfolio, value $1,083,890.

    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 103,429 shares
    Change vs previous 13F +37,816 shares

    0.02% of the 13F portfolio, value $648,500.

    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 65,613 shares
    Change vs previous 13F +25,465 shares

    0.01% of the 13F portfolio, value $451,418.

    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 40,148 shares
    Change vs previous 13F +29,248 shares

    0.01% of the 13F portfolio, value $397,466.

    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 10,900 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $94,721.

    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).