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SEMPER AUGUSTUS INVESTMENTS GROUP LLC: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of SEMPER AUGUSTUS INVESTMENTS GROUP LLC on BRK-B, newest first. How the timeline and the estimate are built.

SEMPER AUGUSTUS INVESTMENTS GROUP LLC held 273,145 BRK-B 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 273,145 shares
    Change vs previous 13F +20,120 shares

    15.45% of the 13F portfolio, value $136,679,027.

    13F-HR 0001941040-26-000625 filed by SEMPER AUGUSTUS INVESTMENTS GROUP 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 253,025 shares
    Change vs previous 13F +3,814 shares

    14.48% of the 13F portfolio, value $121,249,580.

    13F-HR 0001941040-26-000373 filed by SEMPER AUGUSTUS INVESTMENTS GROUP 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 249,211 shares
    Change vs previous 13F -1,028 shares

    14.41% of the 13F portfolio, value $125,265,909.

    13F-HR 0001172661-26-001092 filed by SEMPER AUGUSTUS INVESTMENTS GROUP 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 250,239 shares
    Change vs previous 13F +3,575 shares

    15.7% of the 13F portfolio, value $125,805,155.

    13F-HR 0001172661-25-005018 filed by SEMPER AUGUSTUS INVESTMENTS GROUP 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 246,664 shares
    Change vs previous 13F +7,315 shares

    16.86% of the 13F portfolio, value $119,821,971.

    13F-HR 0001172661-25-003548 filed by SEMPER AUGUSTUS INVESTMENTS GROUP 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 239,349 shares
    Change vs previous 13F +1,296 shares

    20.55% of the 13F portfolio, value $127,472,490.

    13F-HR 0001172661-25-002345 filed by SEMPER AUGUSTUS INVESTMENTS GROUP 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 238,053 shares
    Change vs previous 13F +233 shares

    19.29% of the 13F portfolio, value $107,904,664.

    13F-HR 0001172661-25-001116 filed by SEMPER AUGUSTUS INVESTMENTS GROUP 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 237,820 shares
    Change vs previous 13F not available

    18.5% of the 13F portfolio, value $109,459,033.

    13F-HR 0001172661-24-005284 filed by SEMPER AUGUSTUS INVESTMENTS GROUP LLC
    Filed (acceptance time not in the bulk data set), ingested

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