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BLAIR WILLIAM & CO/IL: BCO position timeline

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

BLAIR WILLIAM & CO/IL held 11,685 BCO 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 11,685 shares
    Change vs previous 13F -5,121 shares

    <0.01% of the 13F portfolio, value $1,104,105.

    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 16,806 shares
    Change vs previous 13F -9,972 shares

    <0.01% of the 13F portfolio, value $1,741,558.

    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 26,778 shares
    Change vs previous 13F -63 shares

    0.01% of the 13F portfolio, value $3,125,831.

    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 26,841 shares
    Change vs previous 13F -563 shares

    0.01% of the 13F portfolio, value $3,136,641.

    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 27,404 shares
    Change vs previous 13F -1,433 shares

    0.01% of the 13F portfolio, value $2,446,879.

    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 28,837 shares
    Change vs previous 13F -23,691 shares

    0.01% of the 13F portfolio, value $2,484,595.

    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 52,528 shares
    Change vs previous 13F -15,705 shares

    0.01% of the 13F portfolio, value $4,872,978.

    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 68,233 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $7,890,477.

    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).