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BLAIR WILLIAM & CO/IL: CW position timeline

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

BLAIR WILLIAM & CO/IL held 185,609 CW 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 185,609 shares
    Change vs previous 13F +18,582 shares

    0.37% of the 13F portfolio, value $140,647,267.

    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 167,027 shares
    Change vs previous 13F +10,026 shares

    0.33% of the 13F portfolio, value $113,765,345.

    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 157,001 shares
    Change vs previous 13F +26,309 shares

    0.23% of the 13F portfolio, value $86,549,921.

    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 130,692 shares
    Change vs previous 13F -4,679 shares

    0.19% of the 13F portfolio, value $70,957,764.

    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 135,371 shares
    Change vs previous 13F +4,584 shares

    0.18% of the 13F portfolio, value $66,135,696.

    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 130,787 shares
    Change vs previous 13F +45,457 shares

    0.13% of the 13F portfolio, value $41,494,644.

    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 85,330 shares
    Change vs previous 13F +31,496 shares

    0.09% of the 13F portfolio, value $30,280,892.

    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 53,834 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $17,694,574.

    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).