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Zweig-DiMenna Associates LLC: WDC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Zweig-DiMenna Associates LLC on WDC, newest first. How the timeline and the estimate are built.

Zweig-DiMenna Associates LLC held 0 WDC shares at 2026-03-31 per its 13F-HR filed 2026-05-05.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -83,138 shares

    13F-HR 0001104659-26-055325 filed by Zweig-DiMenna Associates LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-12-31
    13F 83,138 shares
    Change vs previous 13F -5,862 shares

    1.02% of the 13F portfolio, value $14,322,183.

    13F-HR 0001104659-26-012400 filed by Zweig-DiMenna Associates LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 89,000 shares
    Change vs previous 13F +89,000 shares

    0.83% of the 13F portfolio, value $10,685,340.

    13F-HR 0001104659-25-108211 filed by Zweig-DiMenna Associates LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-03-31
    13F 0 shares
    Change vs previous 13F -127,509 shares

    13F-HR 0001104659-25-045346 filed by Zweig-DiMenna Associates LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  5. period ended2024-12-31
    13F 127,509 shares
    Change vs previous 13F 0 shares

    0.64% of the 13F portfolio, value $7,603,362.

    13F-HR 0001104659-25-004754 filed by Zweig-DiMenna Associates LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-09-30
    13F 127,509 shares
    Change vs previous 13F not available

    0.88% of the 13F portfolio, value $8,707,590.

    13F-HR 0001104659-24-110753 filed by Zweig-DiMenna Associates LLC
    Filed (acceptance time not in the bulk data set), ingested

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