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Disclosery

FOSTER DYKEMA CABOT & PARTNERS, LLC: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of FOSTER DYKEMA CABOT & PARTNERS, LLC on BRK-B, newest first. How the timeline and the estimate are built.

FOSTER DYKEMA CABOT & PARTNERS, LLC held 55,263 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 55,263 shares
    Change vs previous 13F -638 shares

    1.61% of the 13F portfolio, value $27,653,053.

    13F-HR 0002011882-26-000003 filed by FOSTER DYKEMA CABOT & PARTNERS, LLC
    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 55,901 shares
    Change vs previous 13F -285 shares

    1.7% of the 13F portfolio, value $26,787,759.

    13F-HR 0002011882-26-000002 filed by FOSTER DYKEMA CABOT & PARTNERS, LLC
    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 56,186 shares
    Change vs previous 13F -1,301 shares

    1.74% of the 13F portfolio, value $28,241,893.

    13F-HR 0002011882-26-000001 filed by FOSTER DYKEMA CABOT & PARTNERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F 57,487 shares
    Change vs previous 13F +127 shares

    1.9% of the 13F portfolio, value $28,895,343.

    13F-HR 0002011882-25-000005 filed by FOSTER DYKEMA CABOT & PARTNERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F 57,360 shares
    Change vs previous 13F -62 shares

    1.96% of the 13F portfolio, value $27,863,621.

    13F-HR 0002011882-25-000002 filed by FOSTER DYKEMA CABOT & PARTNERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-03-31
    13F 57,422 shares
    Change vs previous 13F -276 shares

    2.45% of the 13F portfolio, value $30,581,809.

    13F-HR 0002011882-25-000001 filed by FOSTER DYKEMA CABOT & PARTNERS, LLC
    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 57,698 shares
    Change vs previous 13F -875 shares

    2.04% of the 13F portfolio, value $26,153,349.

    13F-HR 0001759354-25-000001 filed by FOSTER DYKEMA CABOT & PARTNERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 58,573 shares
    Change vs previous 13F not available

    2.26% of the 13F portfolio, value $26,958,809.

    13F-HR 0002011882-24-000006 filed by FOSTER DYKEMA CABOT & PARTNERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

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