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Glassy Mountain Advisors, Inc.: BRK-B position timeline

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

Glassy Mountain Advisors, Inc. held 26,945 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-31.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 26,945 shares
    Change vs previous 13F -26 shares

    3.69% of the 13F portfolio, value $13,483,009.

    13F-HR 0001398344-26-013207 filed by Glassy Mountain Advisors, Inc.
    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 26,971 shares
    Change vs previous 13F -14 shares

    4.01% of the 13F portfolio, value $12,924,264.

    13F-HR 0001398344-26-008784 filed by Glassy Mountain Advisors, Inc.
    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 26,985 shares
    Change vs previous 13F +378 shares

    4.1% of the 13F portfolio, value $13,563,759.

    13F-HR 0001398344-26-002635 filed by Glassy Mountain Advisors, Inc.
    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 26,607 shares
    Change vs previous 13F -285 shares

    4.03% of the 13F portfolio, value $13,376,655.

    13F-HR 0001398344-25-020424 filed by Glassy Mountain Advisors, Inc.
    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 26,892 shares
    Change vs previous 13F -69 shares

    4.2% of the 13F portfolio, value $13,063,084.

    13F-HR 0001754960-25-000446 filed by Glassy Mountain Advisors, Inc.
    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 26,961 shares
    Change vs previous 13F -1,098 shares

    5.09% of the 13F portfolio, value $14,358,623.

    13F-HR 0001754960-25-000252 filed by Glassy Mountain Advisors, Inc.
    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 28,059 shares
    Change vs previous 13F -43 shares

    4.35% of the 13F portfolio, value $12,718,357.

    13F-HR 0001754960-25-000072 filed by Glassy Mountain Advisors, Inc.
    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 28,102 shares
    Change vs previous 13F not available

    4.54% of the 13F portfolio, value $12,933,996.

    13F-HR 0001754960-24-000540 filed by Glassy Mountain Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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