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Disclosery

M&T Bank Corp: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of M&T Bank Corp on BRK-B, newest first. How the timeline and the estimate are built.

M&T Bank Corp held 276,438 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-04.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 276,438 shares
    Change vs previous 13F -3,863 shares

    0.41% of the 13F portfolio, value $138,326,406.

    13F-HR 0001193125-26-331637 filed by M&T Bank 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/A 280,301 shares
    Change vs previous 13F -1,622 shares

    0.44% of the 13F portfolio, value $134,319,764.

    13F-HR/A 0001193125-26-382765 filed by M&T Bank Corp
    Accepted , ingested

  3. period ended2025-12-31
    13F/A 281,923 shares
    Change vs previous 13F +20,824 shares

    0.45% of the 13F portfolio, value $141,708,687.

    13F-HR/A 0001193125-26-029857 filed by M&T Bank 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 261,099 shares
    Change vs previous 13F -31,007 shares

    0.44% of the 13F portfolio, value $131,265,288.

    13F-HR 0001193125-25-281760 filed by M&T Bank 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 292,106 shares
    Change vs previous 13F -4,798 shares

    0.49% of the 13F portfolio, value $141,896,462.

    13F-HR 0000950123-25-007797 filed by M&T Bank 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 296,904 shares
    Change vs previous 13F +296,904 shares

    0.58% of the 13F portfolio, value $158,125,162.

    13F-HR 0000950123-25-003895 filed by M&T Bank 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 0 shares
    Change vs previous 13F -298,860 shares

    13F-HR 0000950123-25-001043 filed by M&T Bank Corp
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  8. period ended2024-09-30
    13F/A 298,860 shares
    Change vs previous 13F not available

    0.45% of the 13F portfolio, value $137,553,304.

    13F-HR/A 0000950123-24-012030 filed by M&T Bank Corp
    Filed (acceptance time not in the bulk data set), ingested

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