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Disclosery

Platform Technology Partners: BRK-B position timeline

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

Platform Technology Partners held 16,612 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-24.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 16,612 shares
    Change vs previous 13F +201 shares

    1.36% of the 13F portfolio, value $8,312,534.

    13F-HR 0001830817-26-000003 filed by Platform Technology Partners
    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 16,411 shares
    Change vs previous 13F +858 shares

    1.52% of the 13F portfolio, value $7,864,207.

    13F-HR 0001830817-26-000002 filed by Platform Technology Partners
    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 15,553 shares
    Change vs previous 13F +308 shares

    1.66% of the 13F portfolio, value $7,817,583.

    13F-HR 0001830817-26-000001 filed by Platform Technology Partners
    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 15,245 shares
    Change vs previous 13F +408 shares

    1.84% of the 13F portfolio, value $7,664,285.

    13F-HR 0001830817-25-000008 filed by Platform Technology Partners
    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 14,837 shares
    Change vs previous 13F +69 shares

    1.88% of the 13F portfolio, value $7,207,289.

    13F-HR 0001830817-25-000005 filed by Platform Technology Partners
    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 14,768 shares
    Change vs previous 13F +1,025 shares

    2.29% of the 13F portfolio, value $7,865,226.

    13F-HR 0001830817-25-000002 filed by Platform Technology Partners
    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 13,743 shares
    Change vs previous 13F -395 shares

    1.89% of the 13F portfolio, value $6,229,706.

    13F-HR 0001830817-25-000001 filed by Platform Technology Partners
    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 14,138 shares
    Change vs previous 13F not available

    2.05% of the 13F portfolio, value $6,506,804.

    13F-HR 0001830817-24-000004 filed by Platform Technology Partners
    Filed (acceptance time not in the bulk data set), ingested

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