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Robeco Institutional Asset Management B.V.: ARM position timeline

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

Robeco Institutional Asset Management B.V. held 927,546 ARM shares at 2026-06-30 per its 13F-HR filed 2026-07-28.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 927,546 shares
    Change vs previous 13F -650,121 shares

    0.38% of the 13F portfolio, value $328,879,985.

    13F-HR 0001418427-26-000003 filed by Robeco Schweiz AG
    Filed (acceptance time not in the bulk data set), ingested

    • Robeco Schweiz AG: 827,366 shares
    • Robeco Institutional Asset Management B.V.: 100,180 shares

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

  2. period ended2026-03-31
    13F 1,577,667 shares
    Change vs previous 13F +343,862 shares

    0.32% of the 13F portfolio, value $238,669,465.

    13F-HR 0001418427-26-000002 filed by Robeco Schweiz AG
    Filed (acceptance time not in the bulk data set), ingested

    • Robeco Schweiz AG: 1,007,404 shares
    • Robeco Institutional Asset Management B.V.: 570,263 shares

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

  3. period ended2025-12-31
    13F 1,233,805 shares
    Change vs previous 13F -18,567 shares

    0.18% of the 13F portfolio, value $134,867,225.

    13F-HR 0001418427-26-000001 filed by Robeco Schweiz AG
    Filed (acceptance time not in the bulk data set), ingested

    • Robeco Schweiz AG: 662,665 shares
    • Robeco Institutional Asset Management B.V.: 571,140 shares

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

  4. period ended2025-09-30
    13F 1,252,372 shares
    Change vs previous 13F +411 shares

    0.24% of the 13F portfolio, value $177,198,114.

    13F-HR 0001418427-25-000002 filed by Robeco Schweiz AG
    Filed (acceptance time not in the bulk data set), ingested

    • Robeco Schweiz AG: 675,400 shares
    • Robeco Institutional Asset Management B.V.: 576,972 shares

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

  5. period ended2025-06-30
    13F 1,251,961 shares
    Change vs previous 13F +460,505 shares

    0.31% of the 13F portfolio, value $202,492,172.

    13F-HR 0001085146-25-004655 filed by Robeco Schweiz AG
    Filed (acceptance time not in the bulk data set), ingested

    • Robeco Schweiz AG: 731,496 shares
    • Robeco Institutional Asset Management B.V.: 520,465 shares

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

  6. period ended2025-03-31
    13F 791,456 shares
    Change vs previous 13F -66,714 shares

    0.15% of the 13F portfolio, value $84,519,586.

    13F-HR 0001085146-25-002500 filed by Robeco Schweiz AG
    Filed (acceptance time not in the bulk data set), ingested

    • Robeco Schweiz AG: 778,291 shares
    • Robeco Institutional Asset Management B.V.: 13,165 shares

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

  7. period ended2024-12-31
    13F 858,170 shares
    Change vs previous 13F -211,399 shares

    0.18% of the 13F portfolio, value $105,863,852.

    13F-HR 0001085146-25-000769 filed by Robeco Schweiz AG
    Filed (acceptance time not in the bulk data set), ingested

    • Robeco Schweiz AG: 845,005 shares
    • Robeco Institutional Asset Management B.V.: 13,165 shares

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

  8. period ended2024-09-30
    13F 1,069,569 shares
    Change vs previous 13F not available

    0.27% of the 13F portfolio, value $152,959,063.

    13F-HR 0001085146-24-005336 filed by Robeco Schweiz AG
    Filed (acceptance time not in the bulk data set), ingested

    • Robeco Schweiz AG: 1,055,010 shares
    • Robeco Institutional Asset Management B.V.: 14,559 shares

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