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Disclosery

GAMMA Investing LLC: BRK-B position timeline

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

GAMMA Investing LLC held 54,069 BRK-B shares at 2026-09-30 per its 13F-HR filed 2026-10-08.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 54,069 shares
    Change vs previous 13F +5,672 shares

    0.91% of the 13F portfolio, value $26,923,659.

    13F-HR 0002010235-26-000007 filed by GAMMA Investing LLC
    Accepted , ingested

  2. period ended2026-06-30
    13F 48,397 shares
    Change vs previous 13F +6,643 shares

    0.9% of the 13F portfolio, value $24,217,375.

    13F-HR 0002010235-26-000005 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 41,754 shares
    Change vs previous 13F +3,951 shares

    0.93% of the 13F portfolio, value $20,008,517.

    13F-HR 0002010235-26-000003 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 37,803 shares
    Change vs previous 13F +2,715 shares

    0.95% of the 13F portfolio, value $19,001,678.

    13F-HR 0002010235-26-000001 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 35,088 shares
    Change vs previous 13F +626 shares

    0.97% of the 13F portfolio, value $17,640,141.

    13F-HR 0002010235-25-000009 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 34,462 shares
    Change vs previous 13F +2,420 shares

    1.06% of the 13F portfolio, value $16,740,606.

    13F-HR 0002010235-25-000007 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F/A 32,042 shares
    Change vs previous 13F +9,601 shares

    1.28% of the 13F portfolio, value $17,064,928.

    13F-HR/A 0002010235-25-000006 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 22,441 shares
    Change vs previous 13F not available

    0.87% of the 13F portfolio, value $10,172,056.

    13F-HR 0002010235-25-000001 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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