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Disclosery

BlackRock, Inc.: WDC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BlackRock, Inc. on WDC, newest first. How the timeline and the estimate are built.

BlackRock, Inc. held 32,953,613 WDC shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 32,953,613 shares
    Change vs previous 13F -2,815,609 shares

    0.31% of the 13F portfolio, value $21,048,132,217.

    13F-HR 0002012383-26-003238 filed by BlackRock, 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 35,769,222 shares
    Change vs previous 13F +259,704 shares

    0.17% of the 13F portfolio, value $9,675,216,961.

    13F-HR 0002012383-26-001841 filed by BlackRock, 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 35,509,518 shares
    Change vs previous 13F +794,667 shares

    0.1% of the 13F portfolio, value $6,117,224,662.

    13F-HR 0002012383-26-000920 filed by BlackRock, 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 34,714,851 shares
    Change vs previous 13F -282,005 shares

    0.07% of the 13F portfolio, value $4,167,865,040.

    13F-HR 0002012383-25-002949 filed by BlackRock, 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 34,996,856 shares
    Change vs previous 13F +4,949,136 shares

    0.04% of the 13F portfolio, value $2,239,448,839.

    13F-HR 0001060021-25-000120 filed by BlackRock, 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 30,047,720 shares
    Change vs previous 13F +1,738,028 shares

    0.03% of the 13F portfolio, value $1,214,829,306.

    13F-HR 0001576419-25-000869 filed by BlackRock, 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 28,309,692 shares
    Change vs previous 13F -83,001 shares

    0.03% of the 13F portfolio, value $1,688,106,925.

    13F-HR 0001060021-25-000002 filed by BlackRock, 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 28,392,693 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $1,938,936,996.

    13F-HR 0001426459-24-000006 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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