Skip to content
Disclosery

BlackRock, Inc.: MTRN position timeline

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

BlackRock, Inc. held 3,473,501 MTRN shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 3,473,501 shares
    Change vs previous 13F +104,555 shares

    0.02% of the 13F portfolio, value $1,032,984,711.

    13F-HR 0002012383-26-003238 filed by BlackRock, 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 3,368,946 shares
    Change vs previous 13F +68,310 shares

    0.01% of the 13F portfolio, value $487,318,160.

    13F-HR 0002012383-26-001841 filed by BlackRock, 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 3,300,636 shares
    Change vs previous 13F +28,204 shares

    0.01% of the 13F portfolio, value $410,335,094.

    13F-HR 0002012383-26-000920 filed by BlackRock, 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 3,272,432 shares
    Change vs previous 13F -55,327 shares

    0.01% of the 13F portfolio, value $395,342,536.

    13F-HR 0002012383-25-002949 filed by BlackRock, 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 3,327,759 shares
    Change vs previous 13F -79,204 shares

    0.01% of the 13F portfolio, value $264,124,208.

    13F-HR 0001060021-25-000120 filed by BlackRock, 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 3,406,963 shares
    Change vs previous 13F -82,603 shares

    0.01% of the 13F portfolio, value $278,008,176.

    13F-HR 0001576419-25-000869 filed by BlackRock, 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 3,489,566 shares
    Change vs previous 13F +104,530 shares

    0.01% of the 13F portfolio, value $345,048,255.

    13F-HR 0001060021-25-000002 filed by BlackRock, 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 3,385,036 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $378,650,093.

    13F-HR 0001426459-24-000006 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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