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AMERICAN CENTURY COMPANIES INC: MTRN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of AMERICAN CENTURY COMPANIES INC on MTRN, newest first. How the timeline and the estimate are built.

AMERICAN CENTURY COMPANIES INC held 616,020 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 616,020 shares
    Change vs previous 13F -266,664 shares

    0.08% of the 13F portfolio, value $183,198,789.

    13F-HR 0000748054-26-000005 filed by AMERICAN CENTURY COMPANIES 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 882,684 shares
    Change vs previous 13F +361,308 shares

    0.07% of the 13F portfolio, value $127,680,441.

    13F-HR 0000748054-26-000002 filed by AMERICAN CENTURY COMPANIES 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 521,376 shares
    Change vs previous 13F +156,164 shares

    0.03% of the 13F portfolio, value $64,817,491.

    13F-HR 0000748054-26-000001 filed by AMERICAN CENTURY COMPANIES 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 365,212 shares
    Change vs previous 13F +126,794 shares

    0.02% of the 13F portfolio, value $44,121,288.

    13F-HR 0000748054-25-000009 filed by AMERICAN CENTURY COMPANIES 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 238,418 shares
    Change vs previous 13F +164,433 shares

    0.01% of the 13F portfolio, value $18,923,254.

    13F-HR 0001085146-25-004910 filed by AMERICAN CENTURY COMPANIES 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 73,985 shares
    Change vs previous 13F +37,268 shares

    <0.01% of the 13F portfolio, value $6,037,193.

    13F-HR 0001085146-25-003039 filed by AMERICAN CENTURY COMPANIES 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 36,717 shares
    Change vs previous 13F +72 shares

    <0.01% of the 13F portfolio, value $3,630,598.

    13F-HR 0001085146-25-000985 filed by AMERICAN CENTURY COMPANIES 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 36,645 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $4,099,134.

    13F-HR 0001085146-24-005525 filed by AMERICAN CENTURY COMPANIES INC
    Filed (acceptance time not in the bulk data set), ingested

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