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
- period ended2026-06-3013F 4,862,894 sharesShare 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F/A 5,348,395 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 3,018,787 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 1,065,209 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 1,087,194 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 900,367 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 1,092,417 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 1,325,784 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).