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Disclosery

SEI INVESTMENTS CO: ON position timeline

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

SEI INVESTMENTS CO held 1,751,563 ON 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 1,751,563 shares
    Change vs previous 13F -113,381 shares

    0.15% of the 13F portfolio, value $165,592,785.

    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 1,864,944 shares
    Change vs previous 13F +6,292 shares

    0.11% of the 13F portfolio, value $115,477,229.

    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 1,858,652 shares
    Change vs previous 13F +344,040 shares

    0.1% of the 13F portfolio, value $100,645,403.

    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 1,514,612 shares
    Change vs previous 13F +68,878 shares

    0.08% of the 13F portfolio, value $74,685,818.

    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 1,445,734 shares
    Change vs previous 13F +85,949 shares

    0.09% of the 13F portfolio, value $75,771,080.

    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 1,359,785 shares
    Change vs previous 13F -880,721 shares

    0.07% of the 13F portfolio, value $55,329,269.

    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 2,240,506 shares
    Change vs previous 13F +147,583 shares

    0.18% of the 13F portfolio, value $141,263,827.

    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 2,092,923 shares
    Change vs previous 13F not available

    0.2% of the 13F portfolio, value $151,967,022.

    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).