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Disclosery

ARBOR CAPITAL MANAGEMENT INC /ADV: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ARBOR CAPITAL MANAGEMENT INC /ADV on BRK-B, newest first. How the timeline and the estimate are built.

ARBOR CAPITAL MANAGEMENT INC /ADV held 483 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 483 shares
    Change vs previous 13F 0 shares

    0.24% of the 13F portfolio, value $245,530.

    13F-HR 0001027570-26-000004 filed by ARBOR CAPITAL MANAGEMENT INC /ADV
    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 483 shares
    Change vs previous 13F -53 shares

    0.19% of the 13F portfolio, value $230,648.

    13F-HR 0001027570-26-000003 filed by ARBOR CAPITAL MANAGEMENT INC /ADV
    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 536 shares
    Change vs previous 13F -220 shares

    0.22% of the 13F portfolio, value $265,338.

    13F-HR 0001027570-26-000001 filed by ARBOR CAPITAL MANAGEMENT INC /ADV
    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 756 shares
    Change vs previous 13F 0 shares

    0.3% of the 13F portfolio, value $376,698.

    13F-HR 0001027570-25-000008 filed by ARBOR CAPITAL MANAGEMENT INC /ADV
    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 756 shares
    Change vs previous 13F -75 shares

    0.32% of the 13F portfolio, value $362,429.

    13F-HR 0001027570-25-000006 filed by ARBOR CAPITAL MANAGEMENT INC /ADV
    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 831 shares
    Change vs previous 13F +75 shares

    0.43% of the 13F portfolio, value $444,013.

    13F-HR 0001027570-25-000005 filed by ARBOR CAPITAL MANAGEMENT INC /ADV
    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 756 shares
    Change vs previous 13F -12 shares

    0.35% of the 13F portfolio, value $356,494.

    13F-HR 0001027570-25-000003 filed by ARBOR CAPITAL MANAGEMENT INC /ADV
    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 768 shares
    Change vs previous 13F not available

    0.33% of the 13F portfolio, value $352,692.

    13F-HR 0001027570-24-000007 filed by ARBOR CAPITAL MANAGEMENT INC /ADV
    Filed (acceptance time not in the bulk data set), ingested

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