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Hyperion Asset Management Ltd: ARM position timeline

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

Hyperion Asset Management Ltd held 531,331 ARM shares at 2026-06-30 per its 13F-HR filed 2026-07-10.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 531,331 shares
    Change vs previous 13F -1,067,206 shares

    4.99% of the 13F portfolio, value $188,394,033.

    13F-HR 0001172661-26-002565 filed by Hyperion Asset Management Ltd
    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 1,598,537 shares
    Change vs previous 13F -237,648 shares

    7.71% of the 13F portfolio, value $241,826,678.

    13F-HR 0001172661-26-001924 filed by Hyperion Asset Management Ltd
    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 1,836,185 shares
    Change vs previous 13F +401,594 shares

    5.61% of the 13F portfolio, value $200,713,382.

    13F-HR 0001172661-26-001062 filed by Hyperion Asset Management Ltd
    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 1,434,591 shares
    Change vs previous 13F not available

    5.66% of the 13F portfolio, value $202,980,281.

    13F-HR 0001172661-25-004800 filed by Hyperion Asset Management Ltd
    Filed (acceptance time not in the bulk data set), ingested

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