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BLAIR WILLIAM & CO/IL: OWL position timeline

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

BLAIR WILLIAM & CO/IL held 80,037 OWL 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 80,037 shares
    Change vs previous 13F -7,325 shares

    <0.01% of the 13F portfolio, value $700,327.

    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 87,362 shares
    Change vs previous 13F +18,479 shares

    <0.01% of the 13F portfolio, value $797,613.

    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 68,883 shares
    Change vs previous 13F +16,414 shares

    <0.01% of the 13F portfolio, value $1,029,112.

    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 52,469 shares
    Change vs previous 13F -4,178 shares

    <0.01% of the 13F portfolio, value $888,300.

    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 56,647 shares
    Change vs previous 13F -825 shares

    <0.01% of the 13F portfolio, value $1,088,189.

    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 57,472 shares
    Change vs previous 13F +32,269 shares

    <0.01% of the 13F portfolio, value $1,151,739.

    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 25,203 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $586,222.

    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).