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ALLIANCEBERNSTEIN L.P.: WDC position timeline

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

ALLIANCEBERNSTEIN L.P. held 587,816 WDC shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 587,816 shares
    Change vs previous 13F -175,264 shares

    0.05% of the 13F portfolio, value $158,998,350.

    13F-HR 0001109448-26-000261 filed by ALLIANCEBERNSTEIN L.P.
    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 763,080 shares
    Change vs previous 13F -865,947 shares

    0.04% of the 13F portfolio, value $131,455,792.

    13F-HR 0001109448-26-000101 filed by ALLIANCEBERNSTEIN L.P.
    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 1,629,027 shares
    Change vs previous 13F -318,340 shares

    0.09% of the 13F portfolio, value $280,632,481.

    13F-HR 0001109448-26-000021 filed by ALLIANCEBERNSTEIN L.P.
    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 1,947,367 shares
    Change vs previous 13F +210,600 shares

    0.07% of the 13F portfolio, value $233,800,882.

    13F-HR 0001109448-25-000079 filed by ALLIANCEBERNSTEIN L.P.
    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 1,736,767 shares
    Change vs previous 13F -1,189,284 shares

    0.04% of the 13F portfolio, value $111,135,720.

    13F-HR 0001532155-25-000161 filed by ALLIANCEBERNSTEIN L.P.
    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 2,926,051 shares
    Change vs previous 13F -367,551 shares

    0.04% of the 13F portfolio, value $118,300,242.

    13F-HR 0001532155-25-000116 filed by ALLIANCEBERNSTEIN L.P.
    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 3,293,602 shares
    Change vs previous 13F -145,948 shares

    0.07% of the 13F portfolio, value $196,397,487.

    13F-HR 0001532155-25-000050 filed by ALLIANCEBERNSTEIN L.P.
    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 3,439,550 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $234,886,870.

    13F-HR 0001532155-24-000162 filed by ALLIANCEBERNSTEIN L.P.
    Filed (acceptance time not in the bulk data set), ingested

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