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Disclosery

SEI INVESTMENTS CO: ARCO position timeline

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

SEI INVESTMENTS CO held 1,845,873 ARCO 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 1,845,873 shares
    Change vs previous 13F -1,637,859 shares

    0.01% of the 13F portfolio, value $14,877,773.

    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 3,483,732 shares
    Change vs previous 13F +1,987,271 shares

    0.03% of the 13F portfolio, value $28,740,799.

    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 1,496,461 shares
    Change vs previous 13F +1,480,712 shares

    0.01% of the 13F portfolio, value $10,984,016.

    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 15,749 shares
    Change vs previous 13F +15,749 shares

    <0.01% of the 13F portfolio, value $106,310.

    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 ended2024-09-30
    13F 0 shares
    Change vs previous 13F not available

    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).

    Exited: the 13F for this period no longer lists the position.