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Trigran Investments, Inc.: BRK-B position timeline

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

Trigran Investments, Inc. held 2,290 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,290 shares
    Change vs previous 13F -110 shares

    0.21% of the 13F portfolio, value $1,145,893.

    13F-HR 0001062993-26-004214 filed by Trigran Investments, 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 2,400 shares
    Change vs previous 13F 0 shares

    0.28% of the 13F portfolio, value $1,150,080.

    13F-HR 0001062993-26-002575 filed by Trigran Investments, 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 2,400 shares
    Change vs previous 13F 0 shares

    0.24% of the 13F portfolio, value $1,206,360.

    13F-HR 0001062993-26-000909 filed by Trigran Investments, 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 2,400 shares
    Change vs previous 13F -100 shares

    0.22% of the 13F portfolio, value $1,206,576.

    13F-HR 0001062993-25-016675 filed by Trigran Investments, 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/A 2,500 shares
    Change vs previous 13F -650 shares

    0.21% of the 13F portfolio, value $1,214,425.

    13F-HR/A 0001062993-25-014670 filed by Trigran Investments, 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 3,150 shares
    Change vs previous 13F 0 shares

    0.25% of the 13F portfolio, value $1,677,627.

    13F-HR 0001062993-25-009264 filed by Trigran Investments, 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 3,150 shares
    Change vs previous 13F 0 shares

    0.16% of the 13F portfolio, value $1,427,832.

    13F-HR 0001062993-25-002307 filed by Trigran Investments, 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 3,150 shares
    Change vs previous 13F not available

    0.16% of the 13F portfolio, value $1,449,819.

    13F-HR 0001062993-24-019146 filed by Trigran Investments, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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