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Disclosery

SPINNAKER TRUST: BRK-B position timeline

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

SPINNAKER TRUST held 98,136 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 98,136 shares
    Change vs previous 13F +102 shares

    2.38% of the 13F portfolio, value $49,106,273.

    13F-HR 0001158970-26-000003 filed by SPINNAKER TRUST
    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 98,034 shares
    Change vs previous 13F -1,509 shares

    2.6% of the 13F portfolio, value $46,977,893.

    13F-HR 0001158970-26-000002 filed by SPINNAKER TRUST
    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 99,543 shares
    Change vs previous 13F +425 shares

    2.68% of the 13F portfolio, value $50,035,289.

    13F-HR 0001158970-26-000001 filed by SPINNAKER TRUST
    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 99,118 shares
    Change vs previous 13F +20,120 shares

    2.76% of the 13F portfolio, value $49,830,583.

    13F-HR 0001158970-25-000008 filed by SPINNAKER TRUST
    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 78,998 shares
    Change vs previous 13F +811 shares

    2.31% of the 13F portfolio, value $38,374,858.

    13F-HR 0001158970-25-000005 filed by SPINNAKER TRUST
    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 78,187 shares
    Change vs previous 13F -5,028 shares

    2.72% of the 13F portfolio, value $41,640,832.

    13F-HR 0001158970-25-000004 filed by SPINNAKER TRUST
    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 83,215 shares
    Change vs previous 13F +1 shares

    2.38% of the 13F portfolio, value $37,719,695.

    13F-HR 0001158970-25-000001 filed by SPINNAKER TRUST
    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 83,214 shares
    Change vs previous 13F not available

    2.36% of the 13F portfolio, value $38,300,076.

    13F-HR 0001158970-24-000005 filed by SPINNAKER TRUST
    Filed (acceptance time not in the bulk data set), ingested

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