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Disclosery

Optiver Holding B.V.: ASMG position timeline

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

Optiver Holding B.V. held 21,008 ASMG 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 21,008 shares
    Change vs previous 13F +21,008 shares

    0.02% of the 13F portfolio, value $1,369,957.

    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 0 shares
    Change vs previous 13F -29,055 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.

  3. period ended2025-12-31
    13F 29,055 shares
    Change vs previous 13F -11,178 shares

    0.01% of the 13F portfolio, value $656,352.

    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 40,233 shares
    Change vs previous 13F +26,494 shares

    0.01% of the 13F portfolio, value $880,700.

    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 13,739 shares
    Change vs previous 13F -44,194 shares

    0.01% of the 13F portfolio, value $218,725.

    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 57,933 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $681,871.

    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).