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Disclosery

Janus Henderson: MRSH position timeline

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

Janus Henderson held 202,645 MRSH 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 202,645 shares
    Share basis changed not comparable

    Membership change: Jupiter Topco LLC joined the group. 0.01% of the 13F portfolio, value $33,761,589.

    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 157,363 shares
    Change vs previous 13F -225,633 shares

    0.01% of the 13F portfolio, value $27,290,854.

    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 382,996 shares
    Change vs previous 13F -1,307,703 shares

    0.03% of the 13F portfolio, value $71,088,984.

    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 1,690,699 shares
    Change vs previous 13F -164,232 shares

    0.16% of the 13F portfolio, value $340,738,253.

    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 1,854,931 shares
    Change vs previous 13F -87,375 shares

    0.2% of the 13F portfolio, value $405,590,493.

    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 1,942,306 shares
    Change vs previous 13F -123,190 shares

    0.26% of the 13F portfolio, value $470,752,721.

    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 2,065,496 shares
    Change vs previous 13F -105,641 shares

    0.22% of the 13F portfolio, value $438,748,752.

    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 2,171,137 shares
    Change vs previous 13F not available

    0.25% of the 13F portfolio, value $484,362,733.

    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).