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Rhenman & Partners Asset Management AB: GKOS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Rhenman & Partners Asset Management AB on GKOS, newest first. How the timeline and the estimate are built.

Rhenman & Partners Asset Management AB held 119,000 GKOS shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 119,000 shares
    Change vs previous 13F +35,000 shares

    1.57% of the 13F portfolio, value $16,631,440.

    13F-HR 0001213900-26-088652 filed by Rhenman & Partners Asset Management AB
    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 84,000 shares
    Change vs previous 13F -126,000 shares

    1.12% of the 13F portfolio, value $9,043,440.

    13F-HR 0001213900-26-056196 filed by Rhenman & Partners Asset Management AB
    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 210,000 shares
    Change vs previous 13F -20,000 shares

    2.22% of the 13F portfolio, value $23,711,100.

    13F-HR 0001213900-26-015821 filed by Rhenman & Partners Asset Management AB
    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 230,000 shares
    Change vs previous 13F -5,000 shares

    2.08% of the 13F portfolio, value $18,756,500.

    13F-HR 0001213900-25-109534 filed by Rhenman & Partners Asset Management AB
    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 235,000 shares
    Change vs previous 13F -35,000 shares

    3.07% of the 13F portfolio, value $24,273,150.

    13F-HR 0001213900-25-075249 filed by Rhenman & Partners Asset Management AB
    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 270,000 shares
    Change vs previous 13F +233,469 shares

    3.05% of the 13F portfolio, value $26,573,400.

    13F-HR 0001213900-25-042939 filed by Rhenman & Partners Asset Management AB
    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 36,531 shares
    Change vs previous 13F -74,469 shares

    0.56% of the 13F portfolio, value $5,477,458.

    13F-HR 0001213900-25-013150 filed by Rhenman & Partners Asset Management AB
    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 111,000 shares
    Change vs previous 13F not available

    1.17% of the 13F portfolio, value $14,461,080.

    13F-HR 0001213900-24-097092 filed by Rhenman & Partners Asset Management AB
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).