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Broad Run Investment Management, LLC: AMT position timeline

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

Broad Run Investment Management, LLC held 105,005 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 105,005 shares
    Change vs previous 13F -573 shares

    2.64% of the 13F portfolio, value $17,175,668.

    13F-HR 0001568621-26-000009 filed by Broad Run Investment Management, LLC
    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 105,578 shares
    Change vs previous 13F -4,297 shares

    3.21% of the 13F portfolio, value $18,220,651.

    13F-HR 0001568621-26-000005 filed by Broad Run Investment 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 109,875 shares
    Change vs previous 13F -2,401 shares

    3.58% of the 13F portfolio, value $19,290,754.

    13F-HR 0001568621-26-000003 filed by Broad Run Investment 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 112,276 shares
    Change vs previous 13F -8,024 shares

    3.53% of the 13F portfolio, value $21,592,920.

    13F-HR 0001568621-25-000014 filed by Broad Run Investment 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 120,300 shares
    Change vs previous 13F -7,612 shares

    4.07% of the 13F portfolio, value $26,588,706.

    13F-HR 0001568621-25-000010 filed by Broad Run Investment 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 127,912 shares
    Change vs previous 13F -82,523 shares

    4.65% of the 13F portfolio, value $27,833,651.

    13F-HR 0001568621-25-000007 filed by Broad Run Investment 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 210,435 shares
    Change vs previous 13F -35,742 shares

    5.24% of the 13F portfolio, value $38,595,883.

    13F-HR 0001568621-25-000002 filed by Broad Run Investment 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 246,177 shares
    Change vs previous 13F not available

    6.91% of the 13F portfolio, value $57,250,923.

    13F-HR 0001568621-24-000014 filed by Broad Run Investment Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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