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SEI INVESTMENTS CO: ATEN position timeline

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

SEI INVESTMENTS CO held 151,678 ATEN 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 151,678 shares
    Change vs previous 13F +30,437 shares

    <0.01% of the 13F portfolio, value $5,666,692.

    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 121,241 shares
    Change vs previous 13F -2,115 shares

    <0.01% of the 13F portfolio, value $2,803,080.

    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 123,356 shares
    Change vs previous 13F -2,910 shares

    <0.01% of the 13F portfolio, value $2,182,154.

    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 126,266 shares
    Change vs previous 13F -59,927 shares

    <0.01% of the 13F portfolio, value $2,291,721.

    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 186,193 shares
    Change vs previous 13F -35,030 shares

    <0.01% of the 13F portfolio, value $3,602,838.

    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 221,223 shares
    Change vs previous 13F +26,187 shares

    <0.01% of the 13F portfolio, value $3,614,777.

    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 195,036 shares
    Change vs previous 13F -24,390 shares

    <0.01% of the 13F portfolio, value $3,588,664.

    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 219,426 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $3,168,510.

    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).