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SEI INVESTMENTS CO: MDU position timeline

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

SEI INVESTMENTS CO held 5,228,758 MDU 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 5,228,758 shares
    Change vs previous 13F -32,668 shares

    0.1% of the 13F portfolio, value $110,901,972.

    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 5,261,426 shares
    Change vs previous 13F -62,482 shares

    0.1% of the 13F portfolio, value $109,016,836.

    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 5,323,908 shares
    Change vs previous 13F +4,285,831 shares

    0.1% of the 13F portfolio, value $103,922,688.

    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 1,038,077 shares
    Change vs previous 13F +929,169 shares

    0.02% of the 13F portfolio, value $18,488,101.

    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 108,908 shares
    Change vs previous 13F +6,900 shares

    <0.01% of the 13F portfolio, value $1,815,518.

    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 102,008 shares
    Change vs previous 13F -17,390 shares

    <0.01% of the 13F portfolio, value $1,724,862.

    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 119,398 shares
    Change vs previous 13F +24,733 shares

    <0.01% of the 13F portfolio, value $2,151,515.

    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 94,665 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $2,594,770.

    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).