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Disclosery

Janus Henderson: AMGN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Janus Henderson on AMGN, newest first. How the timeline and the estimate are built.

Janus Henderson held 893,898 AMGN 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 893,898 shares
    Share basis changed not comparable

    Membership change: Jupiter Topco LLC joined the group. 0.13% of the 13F portfolio, value $323,681,417.

    13F-HR 0001085146-26-000611 filed by Jupiter Topco 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/A 1,107,159 shares
    Change vs previous 13F -1,215,634 shares

    0.19% of the 13F portfolio, value $389,509,641.

    13F-HR/A 0001085146-26-000420 filed by JANUS HENDERSON GROUP PLC
    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 2,322,793 shares
    Change vs previous 13F -321,789 shares

    0.34% of the 13F portfolio, value $760,300,163.

    13F-HR 0001085146-26-000226 filed by JANUS HENDERSON GROUP PLC
    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 2,644,582 shares
    Change vs previous 13F -240,353 shares

    0.34% of the 13F portfolio, value $746,272,831.

    13F-HR 0001085146-25-005993 filed by JANUS HENDERSON GROUP PLC
    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 2,884,935 shares
    Change vs previous 13F +342,446 shares

    0.39% of the 13F portfolio, value $805,471,382.

    13F-HR 0001085146-25-005104 filed by JANUS HENDERSON GROUP PLC
    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 2,542,489 shares
    Change vs previous 13F -221,414 shares

    0.43% of the 13F portfolio, value $780,446,812.

    13F-HR 0001085146-25-003208 filed by JANUS HENDERSON GROUP PLC
    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 2,763,903 shares
    Change vs previous 13F -2,379,427 shares

    0.37% of the 13F portfolio, value $720,393,473.

    13F-HR 0001085146-25-001531 filed by JANUS HENDERSON GROUP PLC
    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 5,143,330 shares
    Change vs previous 13F not available

    0.85% of the 13F portfolio, value $1,657,182,786.

    13F-HR 0001085146-24-005765 filed by JANUS HENDERSON GROUP PLC
    Filed (acceptance time not in the bulk data set), ingested

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