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Disclosery

Asset Management One Co., Ltd.: MPWR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Asset Management One Co., Ltd. on MPWR, newest first. How the timeline and the estimate are built.

Asset Management One Co., Ltd. held 21,424 MPWR shares at 2026-06-30 per its 13F-HR filed 2026-07-28.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 21,424 shares
    Change vs previous 13F +267 shares

    0.08% of the 13F portfolio, value $29,615,681.

    13F-HR 0001193125-26-318819 filed by Asset Management One Co., Ltd.
    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 21,157 shares
    Change vs previous 13F -316 shares

    0.07% of the 13F portfolio, value $23,132,006.

    13F-HR 0001193125-26-213217 filed by Asset Management One Co., Ltd.
    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 21,473 shares
    Change vs previous 13F +683 shares

    0.06% of the 13F portfolio, value $19,963,053.

    13F-HR 0001193125-26-023286 filed by Asset Management One Co., Ltd.
    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 20,790 shares
    Change vs previous 13F -678 shares

    0.06% of the 13F portfolio, value $19,140,106.

    13F-HR 0001193125-25-245770 filed by Asset Management One Co., Ltd.
    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 21,468 shares
    Change vs previous 13F +714 shares

    0.05% of the 13F portfolio, value $15,701,266.

    13F-HR 0000950123-25-006830 filed by Asset Management One Co., Ltd.
    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 20,754 shares
    Change vs previous 13F +242 shares

    0.04% of the 13F portfolio, value $12,036,905.

    13F-HR 0000950123-25-003633 filed by Asset Management One Co., Ltd.
    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 20,512 shares
    Change vs previous 13F +1,034 shares

    0.04% of the 13F portfolio, value $12,567,702.

    13F-HR 0000950123-25-000714 filed by Asset Management One Co., Ltd.
    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 19,478 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $18,007,411.

    13F-HR 0000950123-24-010027 filed by Asset Management One Co., Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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