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BLAIR WILLIAM & CO/IL: WM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on WM, newest first. How the timeline and the estimate are built.

BLAIR WILLIAM & CO/IL held 491,328 WM shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 491,328 shares
    Change vs previous 13F +7,025 shares

    0.29% of the 13F portfolio, value $109,507,115.

    13F-HR 0001104659-26-093821 filed by BLAIR WILLIAM & CO/IL
    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 484,303 shares
    Change vs previous 13F -14,745 shares

    0.32% of the 13F portfolio, value $111,288,088.

    13F-HR 0001104659-26-057897 filed by BLAIR WILLIAM & CO/IL
    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 499,048 shares
    Change vs previous 13F +14,451 shares

    0.29% of the 13F portfolio, value $109,645,877.

    13F-HR 0001104659-26-015563 filed by BLAIR WILLIAM & CO/IL
    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 484,597 shares
    Change vs previous 13F +80,881 shares

    0.28% of the 13F portfolio, value $107,013,584.

    13F-HR 0001104659-25-109927 filed by BLAIR WILLIAM & CO/IL
    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 403,716 shares
    Change vs previous 13F +99,943 shares

    0.26% of the 13F portfolio, value $92,378,366.

    13F-HR 0001104659-25-070274 filed by BLAIR WILLIAM & CO/IL
    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 303,773 shares
    Change vs previous 13F +199,949 shares

    0.21% of the 13F portfolio, value $70,326,494.

    13F-HR 0001104659-25-046545 filed by BLAIR WILLIAM & CO/IL
    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 103,824 shares
    Change vs previous 13F +42,684 shares

    0.06% of the 13F portfolio, value $20,950,743.

    13F-HR 0001104659-25-011872 filed by BLAIR WILLIAM & CO/IL
    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 61,140 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $12,692,708.

    13F-HR 0001104659-24-116499 filed by BLAIR WILLIAM & CO/IL
    Filed (acceptance time not in the bulk data set), ingested

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