Skip to content
Disclosery

Janus Henderson: MAS position timeline

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

Janus Henderson held 17,184 MAS 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 17,184 shares
    Share basis changed not comparable

    Membership change: Jupiter Topco LLC joined the group. <0.01% of the 13F portfolio, value $1,397,835.

    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 17,077 shares
    Change vs previous 13F -5,578 shares

    <0.01% of the 13F portfolio, value $1,031,195.

    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 22,655 shares
    Change vs previous 13F +410 shares

    <0.01% of the 13F portfolio, value $1,437,574.

    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 22,245 shares
    Change vs previous 13F -2,116 shares

    <0.01% of the 13F portfolio, value $1,565,492.

    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 24,361 shares
    Change vs previous 13F -875 shares

    <0.01% of the 13F portfolio, value $1,567,752.

    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 25,236 shares
    Change vs previous 13F +184 shares

    <0.01% of the 13F portfolio, value $1,732,578.

    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 25,052 shares
    Change vs previous 13F -705 shares

    <0.01% of the 13F portfolio, value $1,818,149.

    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 25,757 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $2,161,913.

    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).