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SEI INVESTMENTS CO: MBB position timeline

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

SEI INVESTMENTS CO held 2,380,025 MBB 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 2,380,025 shares
    Change vs previous 13F +185,578 shares

    0.2% of the 13F portfolio, value $224,960,523.

    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 2,194,447 shares
    Change vs previous 13F +108,361 shares

    0.19% of the 13F portfolio, value $208,334,648.

    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 2,086,086 shares
    Change vs previous 13F -90,168 shares

    0.2% of the 13F portfolio, value $198,638,286.

    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 2,176,254 shares
    Change vs previous 13F +240,833 shares

    0.22% of the 13F portfolio, value $207,079,339.

    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 1,935,421 shares
    Change vs previous 13F -112,091 shares

    0.21% of the 13F portfolio, value $181,725,278.

    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 2,047,512 shares
    Change vs previous 13F -9,663 shares

    0.25% of the 13F portfolio, value $192,018,193.

    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 2,057,175 shares
    Change vs previous 13F +147,930 shares

    0.24% of the 13F portfolio, value $188,612,701.

    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 1,909,245 shares
    Change vs previous 13F not available

    0.24% of the 13F portfolio, value $182,921,225.

    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).