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Russell Investments Group, Ltd.: MTRN position timeline

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

Russell Investments Group, Ltd. held 21,248 MTRN shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 21,248 shares
    Change vs previous 13F +10,784 shares

    0.01% of the 13F portfolio, value $6,298,620.

    13F-HR 0001193125-26-336961 filed by Russell Investments Group, Ltd.
    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 10,464 shares
    Change vs previous 13F -5,520 shares

    <0.01% of the 13F portfolio, value $1,513,721.

    13F-HR 0001193125-26-213225 filed by Russell Investments Group, Ltd.
    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 15,984 shares
    Change vs previous 13F -3,245 shares

    <0.01% of the 13F portfolio, value $1,987,252.

    13F-HR 0001193125-26-053181 filed by Russell Investments Group, Ltd.
    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 19,229 shares
    Change vs previous 13F +10,335 shares

    <0.01% of the 13F portfolio, value $2,323,088.

    13F-HR 0001193125-25-278803 filed by Russell Investments Group, Ltd.
    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 8,894 shares
    Change vs previous 13F +1,637 shares

    <0.01% of the 13F portfolio, value $705,920.

    13F-HR 0000950123-25-007728 filed by Russell Investments Group, Ltd.
    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 7,257 shares
    Change vs previous 13F +710 shares

    <0.01% of the 13F portfolio, value $592,188.

    13F-HR 0000950123-25-004729 filed by Russell Investments Group, Ltd.
    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 6,547 shares
    Change vs previous 13F -1,876 shares

    <0.01% of the 13F portfolio, value $647,460.

    13F-HR 0000950123-25-001908 filed by Russell Investments Group, Ltd.
    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 8,423 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $942,202.

    13F-HR 0000950123-24-011064 filed by Russell Investments Group, Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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