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Disclosery

Alta Advisers Ltd: AMT position timeline

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

Alta Advisers Ltd held 2,109 AMT shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,109 shares
    Change vs previous 13F +461 shares

    0.08% of the 13F portfolio, value $344,969.

    13F-HR 0000904454-26-000442 filed by Alta Advisers Ltd
    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 1,648 shares
    Change vs previous 13F 0 shares

    0.1% of the 13F portfolio, value $284,412.

    13F-HR 0000904454-26-000252 filed by Alta Advisers Ltd
    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 1,648 shares
    Change vs previous 13F -700 shares

    0.1% of the 13F portfolio, value $289,339.

    13F-HR 0000904454-26-000078 filed by Alta Advisers Ltd
    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 2,348 shares
    Change vs previous 13F 0 shares

    0.14% of the 13F portfolio, value $451,567.

    13F-HR 0000904454-25-000547 filed by Alta Advisers Ltd
    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 2,348 shares
    Change vs previous 13F 0 shares

    0.18% of the 13F portfolio, value $518,955.

    13F-HR 0000904454-25-000381 filed by Alta Advisers Ltd
    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 2,348 shares
    Change vs previous 13F +800 shares

    0.22% of the 13F portfolio, value $510,925.

    13F-HR 0000904454-25-000224 filed by Alta Advisers Ltd
    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 1,548 shares
    Change vs previous 13F +348 shares

    0.18% of the 13F portfolio, value $283,919.

    13F-HR 0000904454-25-000135 filed by Alta Advisers Ltd
    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 1,200 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $279,072.

    13F-HR 0000904454-24-000580 filed by Alta Advisers Ltd
    Filed (acceptance time not in the bulk data set), ingested

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