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Trigran Investments, Inc.: MTRN position timeline

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

Trigran Investments, Inc. held 219,877 MTRN 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 219,877 shares
    Change vs previous 13F -114,108 shares

    11.99% of the 13F portfolio, value $65,389,221.

    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 333,985 shares
    Change vs previous 13F -124,088 shares

    11.55% of the 13F portfolio, value $48,310,930.

    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 458,073 shares
    Change vs previous 13F -39,656 shares

    11.22% of the 13F portfolio, value $56,947,636.

    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 497,729 shares
    Change vs previous 13F -301,018 shares

    10.9% of the 13F portfolio, value $60,130,640.

    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 798,747 shares
    Change vs previous 13F +3,982 shares

    11.01% of the 13F portfolio, value $63,396,549.

    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 794,765 shares
    Change vs previous 13F +56,935 shares

    9.54% of the 13F portfolio, value $64,852,824.

    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 737,830 shares
    Change vs previous 13F +23,208 shares

    8.39% of the 13F portfolio, value $72,956,631.

    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 714,622 shares
    Change vs previous 13F not available

    8.75% of the 13F portfolio, value $79,937,617.

    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).