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Boston Trust Walden Corp: AMX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Boston Trust Walden Corp on AMX, newest first. How the timeline and the estimate are built.

Boston Trust Walden Corp held 6,636,318 AMX shares at 2026-06-30 per its 13F-HR filed 2026-08-04.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 6,636,318 shares
    Change vs previous 13F -552,016 shares

    0.15% of the 13F portfolio, value $172,477,900.

    13F-HR 0001386060-26-000035 filed by Boston Partners
    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 7,188,334 shares
    Change vs previous 13F +2,352,705 shares

    0.19% of the 13F portfolio, value $183,158,750.

    13F-HR 0001386060-26-000017 filed by Boston Partners
    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 4,835,629 shares
    Change vs previous 13F +326,890 shares

    0.1% of the 13F portfolio, value $99,952,450.

    13F-HR 0001386060-26-000014 filed by Boston Partners
    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 4,508,739 shares
    Change vs previous 13F +381,472 shares

    0.1% of the 13F portfolio, value $94,683,520.

    13F-HR 0001386060-25-000020 filed by Boston Partners
    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/A 4,127,267 shares
    Change vs previous 13F +4,063,982 shares

    0.08% of the 13F portfolio, value $74,043,170.

    13F-HR/A 0001085146-25-004915 filed by Boston Partners
    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 63,285 shares
    Change vs previous 13F -91,224 shares

    <0.01% of the 13F portfolio, value $899,910.

    13F-HR 0001085146-25-002987 filed by Boston Partners
    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 154,509 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $2,211,020.

    13F-HR 0001085146-25-000961 filed by Boston Partners
    Filed (acceptance time not in the bulk data set), ingested

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