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Disclosery

Optiver Holding B.V.: GMAB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Optiver Holding B.V. on GMAB, newest first. How the timeline and the estimate are built.

Optiver Holding B.V. held 0 GMAB shares at 2026-03-31 per its 13F-HR/A filed 2026-06-02.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F/A 0 shares
    Change vs previous 13F -125,914 shares

    13F-HR/A 0001859606-26-000004 filed by Optiver Holding B.V.
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-12-31
    13F 125,914 shares
    Change vs previous 13F +125,914 shares

    0.07% of the 13F portfolio, value $3,878,151.

    13F-HR 0001859606-26-000001 filed by Optiver Holding B.V.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 0 shares
    Change vs previous 13F -155,954 shares

    13F-HR 0001859606-25-000023 filed by Optiver Holding B.V.
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  4. period ended2025-06-30
    13F 155,954 shares
    Change vs previous 13F +155,954 shares

    0.09% of the 13F portfolio, value $3,222,010.

    13F-HR 0001859606-25-000019 filed by Optiver Holding B.V.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-03-31
    13F 0 shares
    Change vs previous 13F -36,260 shares

    13F-HR 0001859606-25-000016 filed by Optiver Holding B.V.
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  6. period ended2024-12-31
    13F 36,260 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $756,746.

    13F-HR 0001859606-25-000012 filed by Optiver Holding B.V.
    Filed (acceptance time not in the bulk data set), ingested

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