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Disclosery

Driehaus Capital Management LLC: ARM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Driehaus Capital Management LLC on ARM, newest first. How the timeline and the estimate are built.

Driehaus Capital Management LLC held 1,433 ARM 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 1,433 shares
    Change vs previous 13F +1,433 shares

    <0.01% of the 13F portfolio, value $508,099.

    13F-HR 0000938206-26-000048 filed by Driehaus Capital 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 ended2025-09-30
    13F 0 shares
    Change vs previous 13F -437,769 shares

    13F-HR 0000938206-25-000056 filed by Driehaus Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  3. period ended2025-06-30
    13F 437,769 shares
    Change vs previous 13F +418,452 shares

    0.57% of the 13F portfolio, value $70,804,758.

    13F-HR 0000938206-25-000037 filed by Driehaus Capital 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 ended2025-03-31
    13F 19,317 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $2,062,862.

    13F-HR 0000938206-25-000012 filed by Driehaus Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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