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Disclosery

ARMSTRONG HENRY H ASSOCIATES INC: BRK-B 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-B, newest first. How the timeline and the estimate are built.

ARMSTRONG HENRY H ASSOCIATES INC held 372,534 BRK-B 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 372,534 shares
    Change vs previous 13F -2,616 shares

    16.59% of the 13F portfolio, value $185,503,256.

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

  2. period ended2026-06-30
    13F 375,150 shares
    Change vs previous 13F +6,465 shares

    18.18% of the 13F portfolio, value $187,721,260.

    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 368,685 shares
    Change vs previous 13F +3,413 shares

    18% of the 13F portfolio, value $176,673,805.

    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 365,272 shares
    Change vs previous 13F -4,611 shares

    17.05% of the 13F portfolio, value $183,603,921.

    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 369,883 shares
    Change vs previous 13F -669 shares

    16.82% of the 13F portfolio, value $185,954,930.

    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 370,552 shares
    Change vs previous 13F -6,018 shares

    16.99% of the 13F portfolio, value $180,002,997.

    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 376,570 shares
    Change vs previous 13F -2,000 shares

    19.44% of the 13F portfolio, value $200,553,598.

    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 378,570 shares
    Change vs previous 13F not available

    17.15% of the 13F portfolio, value $171,598,165.

    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).