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Disclosery

Optiver Holding B.V.: AMDG position timeline

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

Optiver Holding B.V. held 16,501 AMDG 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 16,501 shares
    Change vs previous 13F -18,084 shares

    0.03% of the 13F portfolio, value $2,310,140.

    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 34,585 shares
    Change vs previous 13F +11,132 shares

    0.03% of the 13F portfolio, value $714,913.

    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 23,453 shares
    Change vs previous 13F +9,553 shares

    0.01% of the 13F portfolio, value $621,293.

    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 13,900 shares
    Change vs previous 13F +8,279 shares

    <0.01% of the 13F portfolio, value $272,996.

    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).

  5. period ended2025-06-30
    13F 5,621 shares
    Change vs previous 13F -7,007 shares

    <0.01% of the 13F portfolio, value $91,173.

    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).

  6. period ended2025-03-31
    13F 12,628 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $124,133.

    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).