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Quantum Capital Management, LLC / NJ: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Quantum Capital Management, LLC / NJ on BRK-B, newest first. How the timeline and the estimate are built.

Quantum Capital Management, LLC / NJ held 12,426 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 12,426 shares
    Change vs previous 13F -187 shares

    0.78% of the 13F portfolio, value $6,217,846.

    13F-HR 0001513125-26-000004 filed by Quantum Capital Management, LLC / NJ
    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 12,613 shares
    Change vs previous 13F -370 shares

    0.77% of the 13F portfolio, value $6,044,150.

    13F-HR 0001513125-26-000003 filed by Quantum Capital Management, LLC / NJ
    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 12,983 shares
    Change vs previous 13F -421 shares

    0.76% of the 13F portfolio, value $6,525,905.

    13F-HR 0001513125-26-000002 filed by Quantum Capital Management, LLC / NJ
    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 13,404 shares
    Change vs previous 13F -156 shares

    0.74% of the 13F portfolio, value $6,738,727.

    13F-HR 0001513125-25-000007 filed by Quantum Capital Management, LLC / NJ
    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 13,560 shares
    Change vs previous 13F -73 shares

    0.71% of the 13F portfolio, value $6,587,041.

    13F-HR 0001927537-25-000005 filed by Quantum Capital Management, LLC / NJ
    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 13,633 shares
    Change vs previous 13F -124 shares

    0.75% of the 13F portfolio, value $7,260,663.

    13F-HR 0001513125-25-000003 filed by Quantum Capital Management, LLC / NJ
    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 13,757 shares
    Change vs previous 13F +96 shares

    0.67% of the 13F portfolio, value $6,235,773.

    13F-HR 0001513125-25-000002 filed by Quantum Capital Management, LLC / NJ
    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 13,661 shares
    Change vs previous 13F not available

    0.65% of the 13F portfolio, value $6,287,612.

    13F-HR 0001513125-24-000007 filed by Quantum Capital Management, LLC / NJ
    Filed (acceptance time not in the bulk data set), ingested

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