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Disclosery

AMERICAN CENTURY COMPANIES INC: MASS position timeline

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

AMERICAN CENTURY COMPANIES INC held 359,848 MASS 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 359,848 shares
    Change vs previous 13F +303,954 shares

    <0.01% of the 13F portfolio, value $3,130,678.

    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 55,894 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $342,071.

    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 55,894 shares
    Change vs previous 13F -214 shares

    <0.01% of the 13F portfolio, value $293,444.

    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 56,108 shares
    Change vs previous 13F -188 shares

    <0.01% of the 13F portfolio, value $491,506.

    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 56,296 shares
    Change vs previous 13F +10,482 shares

    <0.01% of the 13F portfolio, value $401,390.

    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 45,814 shares
    Change vs previous 13F +4,471 shares

    <0.01% of the 13F portfolio, value $205,247.

    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 41,343 shares
    Change vs previous 13F -92 shares

    <0.01% of the 13F portfolio, value $90,955.

    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 41,435 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $143,779.

    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).