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ALTA CAPITAL MANAGEMENT LLC/: AMT position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ALTA CAPITAL MANAGEMENT LLC/ on AMT, newest first. How the timeline and the estimate are built.

ALTA CAPITAL MANAGEMENT LLC/ held 0 AMT shares at 2026-06-30 per its 13F-HR filed 2026-07-28.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 0 shares
    Change vs previous 13F -15,468 shares

    13F-HR 0001398344-26-012834 filed by ALTA CAPITAL MANAGEMENT LLC/
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2026-03-31
    13F 15,468 shares
    Change vs previous 13F -8,265 shares

    0.21% of the 13F portfolio, value $2,669,535.

    13F-HR 0001093589-26-000004 filed by ALTA CAPITAL MANAGEMENT LLC/
    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 23,733 shares
    Change vs previous 13F -1,328 shares

    0.28% of the 13F portfolio, value $4,166,872.

    13F-HR 0001093589-26-000002 filed by ALTA CAPITAL MANAGEMENT LLC/
    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 25,061 shares
    Change vs previous 13F +1,702 shares

    0.27% of the 13F portfolio, value $4,819,807.

    13F-HR 0001093589-25-000012 filed by ALTA CAPITAL MANAGEMENT LLC/
    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 23,359 shares
    Change vs previous 13F +980 shares

    0.29% of the 13F portfolio, value $5,162,893.

    13F-HR 0001093589-25-000008 filed by ALTA CAPITAL MANAGEMENT LLC/
    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 22,379 shares
    Change vs previous 13F +1,941 shares

    0.32% of the 13F portfolio, value $4,869,860.

    13F-HR 0001093589-25-000004 filed by ALTA CAPITAL MANAGEMENT LLC/
    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 20,438 shares
    Change vs previous 13F +1,220 shares

    0.22% of the 13F portfolio, value $3,748,538.

    13F-HR 0001093589-25-000001 filed by ALTA CAPITAL MANAGEMENT LLC/
    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 19,218 shares
    Change vs previous 13F not available

    0.27% of the 13F portfolio, value $4,469,503.

    13F-HR 0001093589-24-000006 filed by ALTA CAPITAL MANAGEMENT LLC/
    Filed (acceptance time not in the bulk data set), ingested

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