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MILLENNIUM MANAGEMENT LLC: WDC position timeline

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

MILLENNIUM MANAGEMENT LLC held 351,962 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 351,962 shares
    Change vs previous 13F +74,309 shares

    0.15% of the 13F portfolio, value $224,805,169.

    13F-HR 0001273087-26-000007 filed by MILLENNIUM MANAGEMENT LLC
    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 277,653 shares
    Change vs previous 13F -39,552 shares

    0.06% of the 13F portfolio, value $75,102,360.

    13F-HR 0001273087-26-000004 filed by MILLENNIUM MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 317,205 shares
    Change vs previous 13F -914,620 shares

    0.04% of the 13F portfolio, value $54,644,905.

    13F-HR 0001273087-26-000002 filed by MILLENNIUM MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F 1,231,825 shares
    Change vs previous 13F +857,489 shares

    0.12% of the 13F portfolio, value $147,892,910.

    13F-HR 0001273087-25-000034 filed by MILLENNIUM MANAGEMENT LLC
    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 374,336 shares
    Change vs previous 13F +288,786 shares

    0.02% of the 13F portfolio, value $23,953,761.

    13F-HR 0001273087-25-000028 filed by MILLENNIUM MANAGEMENT LLC
    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 85,550 shares
    Change vs previous 13F -1,046,512 shares

    <0.01% of the 13F portfolio, value $3,458,786.

    13F-HR 0001273087-25-000019 filed by MILLENNIUM MANAGEMENT LLC
    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 1,132,062 shares
    Change vs previous 13F -1,489,414 shares

    0.06% of the 13F portfolio, value $67,504,857.

    13F-HR 0001273087-25-000015 filed by MILLENNIUM MANAGEMENT LLC
    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 2,621,476 shares
    Change vs previous 13F not available

    0.16% of the 13F portfolio, value $179,020,596.

    13F-HR 0001273087-24-000118 filed by MILLENNIUM MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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