Skip to content
Disclosery

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

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

Asset Management One Co., Ltd. held 152,878 WDC 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 152,878 shares
    Change vs previous 13F +4,533 shares

    0.25% of the 13F portfolio, value $97,646,236.

    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 148,345 shares
    Change vs previous 13F -4,531 shares

    0.12% of the 13F portfolio, value $40,125,839.

    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 152,876 shares
    Change vs previous 13F +2,024 shares

    0.08% of the 13F portfolio, value $27,449,294.

    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 150,852 shares
    Change vs previous 13F +3,089 shares

    0.05% of the 13F portfolio, value $18,111,291.

    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 147,763 shares
    Change vs previous 13F +3,456 shares

    0.03% of the 13F portfolio, value $9,455,354.

    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 144,307 shares
    Change vs previous 13F +6,947 shares

    0.02% of the 13F portfolio, value $5,834,332.

    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 137,360 shares
    Change vs previous 13F +5,159 shares

    0.03% of the 13F portfolio, value $8,337,752.

    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 132,201 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $9,028,006.

    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).