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WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC: ALHC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC on ALHC, newest first. How the timeline and the estimate are built.

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC held 7,761,403 ALHC shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 7,761,403 shares
    Change vs previous 13F +2,546,789 shares

    0.56% of the 13F portfolio, value $184,799,005.

    13F-HR 0001644956-26-000023 filed by WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
    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 5,214,614 shares
    Change vs previous 13F +2,909,359 shares

    0.3% of the 13F portfolio, value $91,881,499.

    13F-HR 0001644956-26-000021 filed by WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
    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 2,305,255 shares
    Change vs previous 13F +185,303 shares

    0.13% of the 13F portfolio, value $45,528,786.

    13F-HR 0001644956-26-000007 filed by WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
    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 2,119,952 shares
    Change vs previous 13F +641,381 shares

    0.1% of the 13F portfolio, value $36,993,162.

    13F-HR 0001644956-25-000045 filed by WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
    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 1,478,571 shares
    Change vs previous 13F -418,757 shares

    0.05% of the 13F portfolio, value $20,699,994.

    13F-HR 0001644956-25-000032 filed by WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
    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 1,897,328 shares
    Change vs previous 13F -1,075,319 shares

    0.1% of the 13F portfolio, value $35,328,247.

    13F-HR 0001644956-25-000018 filed by WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
    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 2,972,647 shares
    Change vs previous 13F +999,940 shares

    0.08% of the 13F portfolio, value $33,442,279.

    13F-HR 0001644956-25-000002 filed by WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
    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 1,972,707 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $23,317,397.

    13F-HR 0001644956-24-000009 filed by WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).