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Disclosery

GAMMA Investing LLC: WDC position timeline

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

GAMMA Investing LLC held 12,529 WDC shares at 2026-09-30 per its 13F-HR filed 2026-10-08.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 12,529 shares
    Change vs previous 13F +5 shares

    0.19% of the 13F portfolio, value $5,693,930.

    13F-HR 0002010235-26-000007 filed by GAMMA Investing LLC
    Accepted , ingested

  2. period ended2026-06-30
    13F 12,524 shares
    Change vs previous 13F +27 shares

    0.3% of the 13F portfolio, value $7,999,343.

    13F-HR 0002010235-26-000005 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 12,497 shares
    Change vs previous 13F +990 shares

    0.16% of the 13F portfolio, value $3,380,314.

    13F-HR 0002010235-26-000003 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 11,507 shares
    Change vs previous 13F +1,009 shares

    0.1% of the 13F portfolio, value $1,982,311.

    13F-HR 0002010235-26-000001 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 10,498 shares
    Change vs previous 13F +678 shares

    0.07% of the 13F portfolio, value $1,260,390.

    13F-HR 0002010235-25-000009 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 9,820 shares
    Change vs previous 13F +3,555 shares

    0.04% of the 13F portfolio, value $628,382.

    13F-HR 0002010235-25-000007 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F/A 6,265 shares
    Change vs previous 13F -830 shares

    0.02% of the 13F portfolio, value $253,294.

    13F-HR/A 0002010235-25-000006 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 7,095 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $423,075.

    13F-HR 0002010235-25-000001 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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