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Disclosery

ARMSTRONG HENRY H ASSOCIATES INC: BRK-A position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ARMSTRONG HENRY H ASSOCIATES INC on BRK-A, newest first. How the timeline and the estimate are built.

ARMSTRONG HENRY H ASSOCIATES INC held 268 BRK-A shares at 2026-09-30 per its 13F-HR filed 2026-10-07.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 268 shares
    Change vs previous 13F -2 shares

    17.9% of the 13F portfolio, value $200,197,340.

    13F-HR 0001056827-26-000005 filed by ARMSTRONG HENRY H ASSOCIATES INC
    Accepted , ingested

  2. period ended2026-06-30
    13F 270 shares
    Change vs previous 13F -4 shares

    19.58% of the 13F portfolio, value $202,189,500.

    13F-HR 0001056827-26-000004 filed by ARMSTRONG HENRY H ASSOCIATES INC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 274 shares
    Change vs previous 13F -5 shares

    20.05% of the 13F portfolio, value $196,770,360.

    13F-HR 0001056827-26-000002 filed by ARMSTRONG HENRY H ASSOCIATES INC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 279 shares
    Change vs previous 13F -5 shares

    19.56% of the 13F portfolio, value $210,589,200.

    13F-HR 0001056827-26-000001 filed by ARMSTRONG HENRY H ASSOCIATES INC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 284 shares
    Change vs previous 13F -2 shares

    19.37% of the 13F portfolio, value $214,192,800.

    13F-HR 0001056827-25-000006 filed by ARMSTRONG HENRY H ASSOCIATES INC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 286 shares
    Change vs previous 13F -4 shares

    19.67% of the 13F portfolio, value $208,436,800.

    13F-HR 0001056827-25-000005 filed by ARMSTRONG HENRY H ASSOCIATES INC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F 290 shares
    Change vs previous 13F -2 shares

    22.44% of the 13F portfolio, value $231,548,064.

    13F-HR 0001056827-25-000003 filed by ARMSTRONG HENRY H ASSOCIATES INC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 292 shares
    Change vs previous 13F not available

    19.87% of the 13F portfolio, value $198,828,640.

    13F-HR 0001056827-25-000001 filed by ARMSTRONG HENRY H ASSOCIATES INC
    Filed (acceptance time not in the bulk data set), ingested

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