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BLAIR WILLIAM & CO/IL: COO position timeline

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

BLAIR WILLIAM & CO/IL held 17,370 COO 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 17,370 shares
    Change vs previous 13F -2,495 shares

    <0.01% of the 13F portfolio, value $1,245,631.

    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 19,865 shares
    Change vs previous 13F +275 shares

    <0.01% of the 13F portfolio, value $1,420,353.

    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 19,590 shares
    Change vs previous 13F +6,835 shares

    <0.01% of the 13F portfolio, value $1,605,603.

    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 12,755 shares
    Change vs previous 13F -8,990 shares

    <0.01% of the 13F portfolio, value $874,488.

    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 21,745 shares
    Change vs previous 13F -13,314 shares

    <0.01% of the 13F portfolio, value $1,547,380.

    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 35,059 shares
    Change vs previous 13F -4,278 shares

    0.01% of the 13F portfolio, value $2,957,233.

    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 39,337 shares
    Change vs previous 13F -1,365 shares

    0.01% of the 13F portfolio, value $3,616,265.

    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 40,702 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $4,491,076.

    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).