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AMERICAN CENTURY COMPANIES INC: IBKR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of AMERICAN CENTURY COMPANIES INC on IBKR, newest first. How the timeline and the estimate are built.

AMERICAN CENTURY COMPANIES INC held 5,583,028 IBKR shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 5,583,028 shares
    Change vs previous 13F -161,380 shares

    0.21% of the 13F portfolio, value $485,946,757.

    13F-HR 0000748054-26-000005 filed by AMERICAN CENTURY COMPANIES INC
    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 5,744,408 shares
    Change vs previous 13F -18,452 shares

    0.2% of the 13F portfolio, value $385,277,445.

    13F-HR 0000748054-26-000002 filed by AMERICAN CENTURY COMPANIES INC
    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 5,762,860 shares
    Change vs previous 13F -190,787 shares

    0.19% of the 13F portfolio, value $370,609,553.

    13F-HR 0000748054-26-000001 filed by AMERICAN CENTURY COMPANIES INC
    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 5,953,647 shares
    Change vs previous 13F +351,136 shares

    0.21% of the 13F portfolio, value $409,670,475.

    13F-HR 0000748054-25-000009 filed by AMERICAN CENTURY COMPANIES INC
    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 5,602,511 shares
    Change vs previous 13F +4,168,530 shares

    0.17% of the 13F portfolio, value $310,435,152.

    13F-HR 0001085146-25-004910 filed by AMERICAN CENTURY COMPANIES INC
    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 1,433,981 shares
    Change vs previous 13F +1,343,007 shares

    0.15% of the 13F portfolio, value $237,452,924.

    13F-HR 0001085146-25-003039 filed by AMERICAN CENTURY COMPANIES INC
    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 90,974 shares
    Change vs previous 13F +26,234 shares

    0.01% of the 13F portfolio, value $16,072,376.

    13F-HR 0001085146-25-000985 filed by AMERICAN CENTURY COMPANIES INC
    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 64,740 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $9,022,166.

    13F-HR 0001085146-24-005525 filed by AMERICAN CENTURY COMPANIES INC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).