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GILDER GAGNON HOWE & CO LLC: ACMR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GILDER GAGNON HOWE & CO LLC on ACMR, newest first. How the timeline and the estimate are built.

GILDER GAGNON HOWE & CO LLC held 637,058 ACMR shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 637,058 shares
    Change vs previous 13F +565,813 shares

    0.83% of the 13F portfolio, value $80,836,290.

    13F-HR 0001172661-26-003462 filed by GILDER GAGNON HOWE & CO 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 71,245 shares
    Change vs previous 13F +20,877 shares

    0.03% of the 13F portfolio, value $2,803,491.

    13F-HR 0001172661-26-002064 filed by GILDER GAGNON HOWE & CO 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 50,368 shares
    Change vs previous 13F +1 shares

    0.02% of the 13F portfolio, value $1,987,018.

    13F-HR 0001172661-26-000858 filed by GILDER GAGNON HOWE & CO 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 50,367 shares
    Change vs previous 13F +729 shares

    0.02% of the 13F portfolio, value $1,970,861.

    13F-HR 0001172661-25-004939 filed by GILDER GAGNON HOWE & CO 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 49,638 shares
    Change vs previous 13F -115 shares

    0.01% of the 13F portfolio, value $1,285,624.

    13F-HR 0001172661-25-003286 filed by GILDER GAGNON HOWE & CO 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 49,753 shares
    Change vs previous 13F +23,493 shares

    0.02% of the 13F portfolio, value $1,161,235.

    13F-HR 0001172661-25-002018 filed by GILDER GAGNON HOWE & CO 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 26,260 shares
    Change vs previous 13F -15 shares

    <0.01% of the 13F portfolio, value $396,526.

    13F-HR 0001172661-25-001056 filed by GILDER GAGNON HOWE & CO 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 26,275 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $533,383.

    13F-HR 0001172661-24-004863 filed by GILDER GAGNON HOWE & CO LLC
    Filed (acceptance time not in the bulk data set), ingested

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