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Disclosery

Janus Henderson: AME position timeline

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

Janus Henderson held 274,295 AME 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 274,295 shares
    Share basis changed not comparable

    Membership change: Jupiter Topco LLC joined the group. 0.03% of the 13F portfolio, value $66,346,314.

    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 321,113 shares
    Change vs previous 13F -78,040 shares

    0.03% of the 13F portfolio, value $68,816,867.

    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 399,153 shares
    Change vs previous 13F +12,451 shares

    0.04% of the 13F portfolio, value $81,962,316.

    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 386,702 shares
    Change vs previous 13F +76,780 shares

    0.03% of the 13F portfolio, value $72,684,958.

    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 309,922 shares
    Change vs previous 13F +38,637 shares

    0.03% of the 13F portfolio, value $56,079,164.

    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 271,285 shares
    Change vs previous 13F +37,226 shares

    0.03% of the 13F portfolio, value $46,218,313.

    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 234,059 shares
    Change vs previous 13F -30,854 shares

    0.02% of the 13F portfolio, value $42,193,610.

    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 264,913 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $45,486,161.

    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).