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Disclosery

AVENIR CORP: AMT position timeline

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

AVENIR CORP held 407,116 AMT shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 407,116 shares
    Change vs previous 13F -8,236 shares

    8.11% of the 13F portfolio, value $66,591,893.

    13F-HR 0001033475-26-000006 filed by AVENIR CORP
    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 415,352 shares
    Change vs previous 13F -2,360 shares

    8.74% of the 13F portfolio, value $71,681,528.

    13F-HR 0001033475-26-000005 filed by AVENIR CORP
    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 417,712 shares
    Change vs previous 13F -1,754 shares

    7.96% of the 13F portfolio, value $73,337,760.

    13F-HR 0001033475-26-000002 filed by AVENIR CORP
    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 419,466 shares
    Change vs previous 13F -13,519 shares

    8.4% of the 13F portfolio, value $80,671,755.

    13F-HR 0001033475-25-000009 filed by AVENIR CORP
    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 432,985 shares
    Change vs previous 13F -2,457 shares

    9.84% of the 13F portfolio, value $95,698,391.

    13F-HR 0001033475-25-000007 filed by AVENIR CORP
    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 435,442 shares
    Change vs previous 13F -2,620 shares

    9.94% of the 13F portfolio, value $94,752,208.

    13F-HR 0001033475-25-000005 filed by AVENIR CORP
    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 438,062 shares
    Change vs previous 13F -20,586 shares

    8.23% of the 13F portfolio, value $80,344,961.

    13F-HR 0001033475-25-000003 filed by AVENIR CORP
    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 458,648 shares
    Change vs previous 13F not available

    10.76% of the 13F portfolio, value $106,663,176.

    13F-HR 0001033475-24-000007 filed by AVENIR CORP
    Filed (acceptance time not in the bulk data set), ingested

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