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Disclosery

SEI INVESTMENTS CO: OSK position timeline

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

SEI INVESTMENTS CO held 347,719 OSK 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 347,719 shares
    Change vs previous 13F -56,437 shares

    0.05% of the 13F portfolio, value $53,367,093.

    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 404,156 shares
    Change vs previous 13F +11,182 shares

    0.05% of the 13F portfolio, value $59,495,493.

    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 392,974 shares
    Change vs previous 13F -64,903 shares

    0.05% of the 13F portfolio, value $49,369,937.

    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 457,877 shares
    Change vs previous 13F +89,700 shares

    0.06% of the 13F portfolio, value $59,388,989.

    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 368,177 shares
    Change vs previous 13F -146,280 shares

    0.05% of the 13F portfolio, value $41,801,864.

    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 514,457 shares
    Change vs previous 13F -14,483 shares

    0.06% of the 13F portfolio, value $48,399,790.

    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 528,940 shares
    Change vs previous 13F +35,072 shares

    0.06% of the 13F portfolio, value $50,288,926.

    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 493,868 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $49,489,146.

    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).