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BLAIR WILLIAM & CO/IL: ULS position timeline

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

BLAIR WILLIAM & CO/IL held 693,662 ULS 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 693,662 shares
    Change vs previous 13F -32,010 shares

    0.18% of the 13F portfolio, value $70,656,433.

    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 725,672 shares
    Change vs previous 13F -115,896 shares

    0.18% of the 13F portfolio, value $62,197,337.

    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 841,568 shares
    Change vs previous 13F -40,733 shares

    0.18% of the 13F portfolio, value $66,366,014.

    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 882,301 shares
    Change vs previous 13F +133,730 shares

    0.17% of the 13F portfolio, value $62,519,866.

    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 748,571 shares
    Change vs previous 13F +14,690 shares

    0.15% of the 13F portfolio, value $54,540,851.

    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 733,881 shares
    Change vs previous 13F -40,178 shares

    0.12% of the 13F portfolio, value $41,390,896.

    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 774,059 shares
    Change vs previous 13F +50,875 shares

    0.11% of the 13F portfolio, value $38,610,043.

    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 723,184 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $35,652,982.

    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).