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SEI INVESTMENTS CO: TDC position timeline

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

SEI INVESTMENTS CO held 280,505 TDC 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 280,505 shares
    Change vs previous 13F -60,074 shares

    0.01% of the 13F portfolio, value $9,719,472.

    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 340,579 shares
    Change vs previous 13F +214,311 shares

    0.01% of the 13F portfolio, value $8,729,182.

    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 126,268 shares
    Change vs previous 13F -2,482 shares

    <0.01% of the 13F portfolio, value $3,843,209.

    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 128,750 shares
    Change vs previous 13F +11,709 shares

    <0.01% of the 13F portfolio, value $2,769,445.

    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 117,041 shares
    Change vs previous 13F -769 shares

    <0.01% of the 13F portfolio, value $2,611,282.

    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 117,810 shares
    Change vs previous 13F -137,698 shares

    <0.01% of the 13F portfolio, value $2,647,506.

    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 255,508 shares
    Change vs previous 13F -143,539 shares

    0.01% of the 13F portfolio, value $7,958,876.

    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 399,047 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $12,106,472.

    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).