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Disclosery

LANSDOWNE PARTNERS (UK) LLP: ARM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of LANSDOWNE PARTNERS (UK) LLP on ARM, newest first. How the timeline and the estimate are built.

LANSDOWNE PARTNERS (UK) LLP held 1,072,493 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 1,072,493 shares
    Change vs previous 13F +136,990 shares

    15.64% of the 13F portfolio, value $380,273,844.

    13F-HR 0000919574-26-005378 filed by LANSDOWNE PARTNERS (UK) LLP
    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 935,503 shares
    Change vs previous 13F +463,427 shares

    7.58% of the 13F portfolio, value $141,522,893.

    13F-HR 0000919574-26-003079 filed by LANSDOWNE PARTNERS (UK) LLP
    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 472,076 shares
    Change vs previous 13F +412,101 shares

    3.78% of the 13F portfolio, value $51,602,627.

    13F-HR 0000919574-26-000880 filed by LANSDOWNE PARTNERS (UK) LLP
    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/A 59,975 shares
    Change vs previous 13F not available

    0.72% of the 13F portfolio, value $8,485,863.

    13F-HR/A 0000919574-25-007111 filed by LANSDOWNE PARTNERS (UK) LLP
    Filed (acceptance time not in the bulk data set), ingested

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