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Disclosery

TigerOak Management, L.L.C.: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of TigerOak Management, L.L.C. on BRK-B, newest first. How the timeline and the estimate are built.

TigerOak Management, L.L.C. held 1,625 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,625 shares
    Change vs previous 13F -142 shares

    0.23% of the 13F portfolio, value $813,134.

    13F-HR 0001951757-26-001226 filed by TigerOak Management, L.L.C.
    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 1,767 shares
    Change vs previous 13F -66 shares

    0.27% of the 13F portfolio, value $846,746.

    13F-HR 0001951757-26-000683 filed by TigerOak Management, L.L.C.
    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 1,833 shares
    Change vs previous 13F 0 shares

    0.28% of the 13F portfolio, value $921,357.

    13F-HR 0001951757-26-000235 filed by TigerOak Management, L.L.C.
    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 1,833 shares
    Change vs previous 13F -133 shares

    0.29% of the 13F portfolio, value $921,522.

    13F-HR 0001951757-25-001368 filed by TigerOak Management, L.L.C.
    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 1,966 shares
    Change vs previous 13F +154 shares

    0.33% of the 13F portfolio, value $955,024.

    13F-HR 0001951757-25-000861 filed by TigerOak Management, L.L.C.
    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 1,812 shares
    Change vs previous 13F +240 shares

    0.37% of the 13F portfolio, value $965,035.

    13F-HR 0001951757-25-000435 filed by TigerOak Management, L.L.C.
    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 1,572 shares
    Change vs previous 13F not available

    0.26% of the 13F portfolio, value $712,556.

    13F-HR 0001951757-25-000156 filed by TigerOak Management, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

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