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Janus Henderson: GKOS position timeline

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

Janus Henderson held 4,862,894 GKOS 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 4,862,894 shares
    Share basis changed not comparable

    Membership change: Jupiter Topco LLC joined the group. 0.28% of the 13F portfolio, value $679,614,131.

    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 5,348,395 shares
    Change vs previous 13F +2,329,608 shares

    0.27% of the 13F portfolio, value $575,844,474.

    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 3,018,787 shares
    Change vs previous 13F +1,953,578 shares

    0.15% of the 13F portfolio, value $340,854,975.

    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 1,065,209 shares
    Change vs previous 13F -21,985 shares

    0.04% of the 13F portfolio, value $86,867,046.

    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 1,087,194 shares
    Change vs previous 13F +186,827 shares

    0.06% of the 13F portfolio, value $112,297,142.

    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 900,367 shares
    Change vs previous 13F -192,050 shares

    0.05% of the 13F portfolio, value $91,836,561.

    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 1,092,417 shares
    Change vs previous 13F -233,367 shares

    0.08% of the 13F portfolio, value $163,803,992.

    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 1,325,784 shares
    Change vs previous 13F not available

    0.09% of the 13F portfolio, value $172,720,122.

    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).