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Disclosery

SEI INVESTMENTS CO: BX position timeline

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

SEI INVESTMENTS CO held 442,557 BX 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 442,557 shares
    Change vs previous 13F -6,189 shares

    0.05% of the 13F portfolio, value $52,076,209.

    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 448,746 shares
    Change vs previous 13F +15,815 shares

    0.05% of the 13F portfolio, value $51,597,681.

    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 432,931 shares
    Change vs previous 13F -11,537 shares

    0.07% of the 13F portfolio, value $66,732,054.

    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 444,468 shares
    Change vs previous 13F -8,151 shares

    0.08% of the 13F portfolio, value $75,937,379.

    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 452,619 shares
    Change vs previous 13F -53,469 shares

    0.08% of the 13F portfolio, value $67,702,911.

    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 506,088 shares
    Change vs previous 13F +64,211 shares

    0.09% of the 13F portfolio, value $70,742,449.

    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 441,877 shares
    Change vs previous 13F +35,500 shares

    0.1% of the 13F portfolio, value $76,188,173.

    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 406,377 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $62,229,040.

    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).