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SEI INVESTMENTS CO: MTX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of SEI INVESTMENTS CO on MTX, newest first. How the timeline and the estimate are built.

SEI INVESTMENTS CO held 36,016 MTX 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 36,016 shares
    Change vs previous 13F -4,033 shares

    <0.01% of the 13F portfolio, value $2,664,104.

    13F-HR 0002048251-26-006553 filed by SEI INVESTMENTS 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 40,049 shares
    Change vs previous 13F +11,427 shares

    <0.01% of the 13F portfolio, value $2,840,277.

    13F-HR 0002048251-26-003739 filed by SEI INVESTMENTS 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 28,622 shares
    Change vs previous 13F +4,904 shares

    <0.01% of the 13F portfolio, value $1,744,506.

    13F-HR 0000350894-26-000005 filed by SEI INVESTMENTS 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 23,718 shares
    Change vs previous 13F +601 shares

    <0.01% of the 13F portfolio, value $1,473,369.

    13F-HR 0002048251-25-002343 filed by SEI INVESTMENTS CO
    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 23,117 shares
    Change vs previous 13F -114,732 shares

    <0.01% of the 13F portfolio, value $1,273,057.

    13F-HR 0001041062-25-000162 filed by SEI INVESTMENTS CO
    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/A 137,849 shares
    Change vs previous 13F -11,838 shares

    0.01% of the 13F portfolio, value $8,763,052.

    13F-HR/A 0001041062-25-000106 filed by SEI INVESTMENTS CO
    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 149,687 shares
    Change vs previous 13F +19,952 shares

    0.01% of the 13F portfolio, value $11,407,649.

    13F-HR 0001041062-25-000019 filed by SEI INVESTMENTS CO
    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 129,735 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $10,019,159.

    13F-HR 0001041062-24-000165 filed by SEI INVESTMENTS CO
    Filed (acceptance time not in the bulk data set), ingested

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