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Disclosery

UBS Group AG: BRK-B position timeline

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

UBS Group AG held 13,049,721 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 13,049,721 shares
    Change vs previous 13F -359,753 shares

    0.55% of the 13F portfolio, value $6,529,949,892.

    13F-HR 0000861177-26-000004 filed by UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC: 8,910,509 shares
    • UBS Group AG: 4,139,212 shares

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

  2. period ended2026-03-31
    13F 13,409,474 shares
    Change vs previous 13F +919,101 shares

    0.62% of the 13F portfolio, value $6,425,819,940.

    13F-HR 0000861177-26-000003 filed by UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC: 8,845,528 shares
    • UBS Group AG: 4,563,946 shares

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

  3. period ended2025-12-31
    13F 12,490,373 shares
    Change vs previous 13F +904,819 shares

    0.64% of the 13F portfolio, value $6,278,285,989.

    13F-HR 0000861177-26-000001 filed by UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC: 7,948,832 shares
    • UBS Group AG: 4,541,541 shares

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

  4. period ended2025-09-30
    13F 11,585,554 shares
    Change vs previous 13F -1,281,793 shares

    0.6% of the 13F portfolio, value $5,824,521,417.

    13F-HR 0001193125-25-282311 filed by UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC: 6,563,112 shares
    • UBS Group AG: 5,022,442 shares

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

  5. period ended2025-06-30
    13F 12,867,347 shares
    Change vs previous 13F -258,401 shares

    0.64% of the 13F portfolio, value $6,250,571,153.

    13F-HR 0000950123-25-008300 filed by UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC: 7,501,765 shares
    • UBS Group AG: 5,365,582 shares

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

  6. period ended2025-03-31
    13F 13,125,748 shares
    Change vs previous 13F +1,383,065 shares

    0.83% of the 13F portfolio, value $6,990,511,109.

    13F-HR 0000950123-25-005812 filed by UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC: 7,145,474 shares
    • UBS Group AG: 5,980,274 shares

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

  7. period ended2024-12-31
    13F 11,742,683 shares
    Change vs previous 13F -64,036 shares

    0.61% of the 13F portfolio, value $5,322,723,350.

    13F-HR 0000950123-25-002466 filed by UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC: 6,273,433 shares
    • UBS Group AG: 5,469,250 shares

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

  8. period ended2024-09-30
    13F 11,806,719 shares
    Change vs previous 13F not available

    0.73% of the 13F portfolio, value $5,434,160,485.

    13F-HR 0000950123-24-011473 filed by UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC: 6,183,440 shares
    • UBS Group AG: 5,623,279 shares

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