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Disclosery

BLAIR WILLIAM & CO/IL: ALT position timeline

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

BLAIR WILLIAM & CO/IL held 30,660 ALT 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 30,660 shares
    Change vs previous 13F +2,437 shares

    <0.01% of the 13F portfolio, value $93,206.

    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 28,223 shares
    Change vs previous 13F -28,211 shares

    <0.01% of the 13F portfolio, value $86,927.

    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 56,434 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $203,727.

    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).