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SEI INVESTMENTS CO: COSO position timeline

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

SEI INVESTMENTS CO held 11,665 COSO 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 11,665 shares
    Change vs previous 13F -10,007 shares

    <0.01% of the 13F portfolio, value $313,205.

    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 21,672 shares
    Change vs previous 13F +8,249 shares

    <0.01% of the 13F portfolio, value $532,914.

    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 13,423 shares
    Change vs previous 13F +3,751 shares

    <0.01% of the 13F portfolio, value $312,085.

    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 9,672 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $210,946.

    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).