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ADAGE CAPITAL PARTNERS GP, L.L.C.: WDC position timeline

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

ADAGE CAPITAL PARTNERS GP, L.L.C. held 307,437 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 307,437 shares
    Change vs previous 13F +13,700 shares

    0.28% of the 13F portfolio, value $196,366,161.

    13F-HR 0001172661-26-003503 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 293,737 shares
    Change vs previous 13F +35,100 shares

    0.12% of the 13F portfolio, value $79,452,921.

    13F-HR 0001172661-26-002029 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 258,637 shares
    Change vs previous 13F +17,800 shares

    0.07% of the 13F portfolio, value $44,555,396.

    13F-HR 0001172661-26-000912 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 240,837 shares
    Change vs previous 13F -28,700 shares

    0.05% of the 13F portfolio, value $28,914,890.

    13F-HR 0001172661-25-004959 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 269,537 shares
    Change vs previous 13F +27,100 shares

    0.03% of the 13F portfolio, value $17,247,673.

    13F-HR 0001172661-25-003279 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 242,437 shares
    Change vs previous 13F -30,600 shares

    0.02% of the 13F portfolio, value $9,801,728.

    13F-HR 0001172661-25-002042 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 273,037 shares
    Change vs previous 13F -69,700 shares

    0.03% of the 13F portfolio, value $16,281,196.

    13F-HR 0001172661-25-000948 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 342,737 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $23,405,510.

    13F-HR 0001172661-24-004840 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

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