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Disclosery

RHUMBLINE ADVISERS: WDC position timeline

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

RHUMBLINE ADVISERS held 633,209 WDC 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 633,209 shares
    Change vs previous 13F +38,804 shares

    0.31% of the 13F portfolio, value $404,443,112.

    13F-HR 0001115418-26-000005 filed by RHUMBLINE ADVISERS
    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 594,405 shares
    Change vs previous 13F -40,631 shares

    0.14% of the 13F portfolio, value $160,780,480.

    13F-HR 0001115418-26-000003 filed by RHUMBLINE ADVISERS
    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 635,036 shares
    Change vs previous 13F -33,676 shares

    0.09% of the 13F portfolio, value $109,397,533.

    13F-HR 0001115418-26-000002 filed by RHUMBLINE ADVISERS
    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 668,712 shares
    Change vs previous 13F -11,589 shares

    0.06% of the 13F portfolio, value $80,285,443.

    13F-HR 0001115418-25-000021 filed by RHUMBLINE ADVISERS
    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 680,301 shares
    Change vs previous 13F +5,427 shares

    0.04% of the 13F portfolio, value $43,532,337.

    13F-HR 0001115418-25-000017 filed by RHUMBLINE ADVISERS
    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/A 674,874 shares
    Change vs previous 13F +46,202 shares

    0.03% of the 13F portfolio, value $27,285,041.

    13F-HR/A 0001115418-25-000005 filed by RHUMBLINE ADVISERS
    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/A 628,672 shares
    Change vs previous 13F +8,029 shares

    0.03% of the 13F portfolio, value $37,487,594.

    13F-HR/A 0001115418-25-000006 filed by RHUMBLINE ADVISERS
    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 620,643 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $42,383,596.

    13F-HR 0001115418-24-000011 filed by RHUMBLINE ADVISERS
    Filed (acceptance time not in the bulk data set), ingested

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