Skip to content
Disclosery

Spinnaker Investment Group, LLC: BRK-B position timeline

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

Spinnaker Investment Group, LLC held 10,964 BRK-B shares at 2026-09-30 per its 13F-HR filed 2026-10-13.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 10,964 shares
    Change vs previous 13F -60 shares

    0.86% of the 13F portfolio, value $5,459,524.

    13F-HR 0001911067-26-000005 filed by Spinnaker Investment Group, LLC
    Accepted , ingested

  2. period ended2026-06-30
    13F 11,024 shares
    Change vs previous 13F +110 shares

    0.88% of the 13F portfolio, value $5,516,303.

    13F-HR 0001911067-26-000003 filed by Spinnaker Investment 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 ended2026-03-31
    13F 10,914 shares
    Change vs previous 13F +5,413 shares

    1.07% of the 13F portfolio, value $5,229,989.

    13F-HR 0001911067-26-000002 filed by Spinnaker Investment 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 ended2025-12-31
    13F 5,501 shares
    Change vs previous 13F -352 shares

    0.5% of the 13F portfolio, value $2,765,030.

    13F-HR 0001911067-26-000001 filed by Spinnaker Investment 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 ended2025-09-30
    13F 5,853 shares
    Change vs previous 13F +1,580 shares

    0.55% of the 13F portfolio, value $2,942,536.

    13F-HR 0001085146-25-005913 filed by Spinnaker Investment 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 ended2025-06-30
    13F 4,273 shares
    Change vs previous 13F -544 shares

    0.49% of the 13F portfolio, value $2,075,695.

    13F-HR 0001667731-25-000848 filed by Spinnaker Investment 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 ended2025-03-31
    13F 4,817 shares
    Change vs previous 13F -231 shares

    0.58% of the 13F portfolio, value $2,565,438.

    13F-HR 0001667731-25-000486 filed by Spinnaker Investment 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 ended2024-12-31
    13F 5,048 shares
    Change vs previous 13F not available

    0.55% of the 13F portfolio, value $2,288,156.

    13F-HR 0001667731-25-000058 filed by Spinnaker Investment Group, LLC
    Filed (acceptance time not in the bulk data set), ingested

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