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AMERICAN CENTURY COMPANIES INC: MPWR position timeline

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

AMERICAN CENTURY COMPANIES INC held 147,212 MPWR 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 147,212 shares
    Change vs previous 13F -52,473 shares

    0.09% of the 13F portfolio, value $203,508,580.

    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 199,685 shares
    Change vs previous 13F -3,879 shares

    0.11% of the 13F portfolio, value $218,332,126.

    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 203,564 shares
    Change vs previous 13F -11,386 shares

    0.09% of the 13F portfolio, value $184,507,922.

    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 214,950 shares
    Change vs previous 13F +33,024 shares

    0.1% of the 13F portfolio, value $197,897,724.

    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 181,926 shares
    Change vs previous 13F -21,248 shares

    0.07% of the 13F portfolio, value $133,061,573.

    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 203,174 shares
    Change vs previous 13F +7,511 shares

    0.07% of the 13F portfolio, value $117,837,182.

    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 195,663 shares
    Change vs previous 13F -29,893 shares

    0.07% of the 13F portfolio, value $115,774,476.

    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 225,556 shares
    Change vs previous 13F not available

    0.12% of the 13F portfolio, value $208,527,076.

    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).