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BLAIR WILLIAM & CO/IL: IWB position timeline

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

BLAIR WILLIAM & CO/IL held 80,773 IWB 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 80,773 shares
    Change vs previous 13F -122 shares

    0.09% of the 13F portfolio, value $33,076,589.

    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 80,895 shares
    Change vs previous 13F +4,751 shares

    0.08% of the 13F portfolio, value $28,843,917.

    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 76,144 shares
    Change vs previous 13F -469 shares

    0.08% of the 13F portfolio, value $28,435,334.

    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 76,613 shares
    Change vs previous 13F +361 shares

    0.07% of the 13F portfolio, value $28,000,666.

    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 76,252 shares
    Change vs previous 13F -1,050 shares

    0.07% of the 13F portfolio, value $25,892,898.

    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 77,302 shares
    Change vs previous 13F -3,982 shares

    0.07% of the 13F portfolio, value $23,711,761.

    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 81,284 shares
    Change vs previous 13F -529 shares

    0.08% of the 13F portfolio, value $26,186,326.

    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 81,813 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $25,721,207.

    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).