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Disclosery

ARK Investment Management LLC: MTRN position timeline

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

ARK Investment Management LLC held 455 MTRN shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 455 shares
    Change vs previous 13F -116 shares

    <0.01% of the 13F portfolio, value $135,312.

    13F-HR 0001104659-26-096910 filed by ARK Investment Management LLC
    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 571 shares
    Change vs previous 13F +6 shares

    <0.01% of the 13F portfolio, value $82,595.

    13F-HR 0001104659-26-059240 filed by ARK Investment Management LLC
    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 565 shares
    Change vs previous 13F -129 shares

    <0.01% of the 13F portfolio, value $70,241.

    13F-HR 0001104659-26-013538 filed by ARK Investment Management LLC
    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 694 shares
    Change vs previous 13F -207 shares

    <0.01% of the 13F portfolio, value $83,842.

    13F-HR 0001104659-25-110217 filed by ARK Investment Management LLC
    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 901 shares
    Change vs previous 13F +94 shares

    <0.01% of the 13F portfolio, value $71,512.

    13F-HR 0001104659-25-072098 filed by ARK Investment Management LLC
    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 807 shares
    Change vs previous 13F -38 shares

    <0.01% of the 13F portfolio, value $65,851.

    13F-HR 0001104659-25-045396 filed by ARK Investment Management LLC
    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 845 shares
    Change vs previous 13F +85 shares

    <0.01% of the 13F portfolio, value $83,554.

    13F-HR 0001104659-25-009155 filed by ARK Investment Management LLC
    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 760 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $85,014.

    13F-HR 0001104659-24-113006 filed by ARK Investment Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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