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Disclosery

Optiver Holding B.V.: GHM position timeline

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

Optiver Holding B.V. held 40 GHM shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 40 shares
    Change vs previous 13F -80 shares

    <0.01% of the 13F portfolio, value $4,952.

    13F-HR 0001859606-26-000005 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).

  2. period ended2026-03-31
    13F/A 120 shares
    Change vs previous 13F +64 shares

    <0.01% of the 13F portfolio, value $9,470.

    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).

  3. period ended2025-12-31
    13F 56 shares
    Change vs previous 13F -10 shares

    <0.01% of the 13F portfolio, value $3,597.

    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).

  4. period ended2025-09-30
    13F 66 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $3,623.

    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).