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Disclosery

MAI Capital Management: AMT position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MAI Capital Management on AMT, newest first. How the timeline and the estimate are built.

MAI Capital Management held 100,143 AMT shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 100,143 shares
    Change vs previous 13F -1,855 shares

    0.06% of the 13F portfolio, value $16,388,406.

    13F-HR 0001172661-26-003680 filed by MAI Capital Management
    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 101,998 shares
    Change vs previous 13F -875 shares

    0.1% of the 13F portfolio, value $17,602,855.

    13F-HR 0001040197-26-000002 filed by MAI Capital Management
    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 102,873 shares
    Change vs previous 13F -10,829 shares

    0.1% of the 13F portfolio, value $18,061,462.

    13F-HR 0001040197-26-000001 filed by MAI Capital Management
    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 113,702 shares
    Change vs previous 13F +630 shares

    0.14% of the 13F portfolio, value $21,867,200.

    13F-HR 0001040197-25-000006 filed by MAI Capital Management
    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 113,072 shares
    Change vs previous 13F -206 shares

    0.17% of the 13F portfolio, value $24,991,186.

    13F-HR 0001040197-25-000005 filed by MAI Capital Management
    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 113,278 shares
    Change vs previous 13F +9,218 shares

    0.19% of the 13F portfolio, value $24,649,217.

    13F-HR 0001040197-25-000002 filed by MAI Capital Management
    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 104,060 shares
    Change vs previous 13F -6,818 shares

    0.14% of the 13F portfolio, value $19,085,581.

    13F-HR 0001040197-25-000001 filed by MAI Capital Management
    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 110,878 shares
    Change vs previous 13F not available

    0.25% of the 13F portfolio, value $25,785,812.

    13F-HR 0001040197-24-000007 filed by MAI Capital Management
    Filed (acceptance time not in the bulk data set), ingested

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