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SEI INVESTMENTS CO: CMCSA position timeline

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

SEI INVESTMENTS CO held 4,911,488 CMCSA 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 4,911,488 shares
    Change vs previous 13F -957,555 shares

    0.11% of the 13F portfolio, value $120,574,821.

    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 5,869,043 shares
    Change vs previous 13F +2,142,200 shares

    0.16% of the 13F portfolio, value $168,499,816.

    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 3,726,843 shares
    Change vs previous 13F +27,201 shares

    0.11% of the 13F portfolio, value $111,402,020.

    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 3,699,642 shares
    Change vs previous 13F +527,106 shares

    0.13% of the 13F portfolio, value $116,244,978.

    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 3,172,536 shares
    Change vs previous 13F +459,798 shares

    0.13% of the 13F portfolio, value $113,228,542.

    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 2,712,738 shares
    Change vs previous 13F -10,147 shares

    0.13% of the 13F portfolio, value $100,100,445.

    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 2,722,885 shares
    Change vs previous 13F +164,185 shares

    0.13% of the 13F portfolio, value $102,192,292.

    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 2,558,700 shares
    Change vs previous 13F not available

    0.14% of the 13F portfolio, value $106,875,868.

    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).