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SEI INVESTMENTS CO: ACM position timeline

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

SEI INVESTMENTS CO held 190,053 ACM 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 190,053 shares
    Change vs previous 13F +119,855 shares

    0.01% of the 13F portfolio, value $13,266,235.

    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 70,198 shares
    Change vs previous 13F +29,152 shares

    0.01% of the 13F portfolio, value $5,953,867.

    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 41,046 shares
    Change vs previous 13F -66,938 shares

    <0.01% of the 13F portfolio, value $3,912,952.

    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 107,984 shares
    Change vs previous 13F +15,003 shares

    0.02% of the 13F portfolio, value $14,088,563.

    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 92,981 shares
    Change vs previous 13F -9,503 shares

    0.01% of the 13F portfolio, value $10,493,699.

    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 102,484 shares
    Change vs previous 13F +11,776 shares

    0.01% of the 13F portfolio, value $9,503,292.

    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 90,708 shares
    Change vs previous 13F -90,088 shares

    0.01% of the 13F portfolio, value $9,689,388.

    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 180,796 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $18,670,896.

    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).