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Disclosery

EXCALIBUR MANAGEMENT CORP: BRK-B position timeline

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

EXCALIBUR MANAGEMENT CORP held 23,433 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 23,433 shares
    Change vs previous 13F +127 shares

    3.86% of the 13F portfolio, value $11,725,695.

    13F-HR 0001009003-26-000004 filed by EXCALIBUR MANAGEMENT CORP
    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 23,306 shares
    Change vs previous 13F -67 shares

    4.01% of the 13F portfolio, value $11,168,235.

    13F-HR 0001009003-26-000003 filed by EXCALIBUR MANAGEMENT CORP
    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 23,373 shares
    Change vs previous 13F +1,501 shares

    4.24% of the 13F portfolio, value $11,748,438.

    13F-HR 0001009003-26-000002 filed by EXCALIBUR MANAGEMENT CORP
    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 21,872 shares
    Change vs previous 13F -97 shares

    3.99% of the 13F portfolio, value $10,995,929.

    13F-HR 0001009003-25-000003 filed by EXCALIBUR MANAGEMENT CORP
    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 21,969 shares
    Change vs previous 13F -398 shares

    4% of the 13F portfolio, value $10,671,881.

    13F-HR 0001085146-25-004581 filed by EXCALIBUR MANAGEMENT CORP
    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 22,367 shares
    Change vs previous 13F +750 shares

    4.68% of the 13F portfolio, value $11,912,396.

    13F-HR 0001085146-25-002765 filed by EXCALIBUR MANAGEMENT CORP
    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 21,617 shares
    Change vs previous 13F -409 shares

    3.89% of the 13F portfolio, value $9,798,706.

    13F-HR 0001085146-25-001015 filed by EXCALIBUR MANAGEMENT CORP
    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 22,026 shares
    Change vs previous 13F not available

    3.87% of the 13F portfolio, value $10,137,687.

    13F-HR 0001085146-24-005771 filed by EXCALIBUR MANAGEMENT CORP
    Filed (acceptance time not in the bulk data set), ingested

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