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Disclosery

BROWN BROTHERS HARRIMAN & CO: MTRN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BROWN BROTHERS HARRIMAN & CO on MTRN, newest first. How the timeline and the estimate are built.

BROWN BROTHERS HARRIMAN & CO held 99 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 99 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $29,442.

    13F-HR 0001104659-26-094581 filed by BROWN BROTHERS HARRIMAN & CO
    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 99 shares
    Change vs previous 13F +46 shares

    <0.01% of the 13F portfolio, value $14,320.

    13F-HR 0001104659-26-060871 filed by BROWN BROTHERS HARRIMAN & CO
    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 53 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $6,589.

    13F-HR 0001104659-26-014005 filed by BROWN BROTHERS HARRIMAN & CO
    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 53 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $6,403.

    13F-HR 0001104659-25-111114 filed by BROWN BROTHERS HARRIMAN & CO
    Filed (acceptance time not in the bulk data set), ingested

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