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Disclosery

Optiver Holding B.V.: GRBK position timeline

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

Optiver Holding B.V. held 274 GRBK 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 274 shares
    Change vs previous 13F -796 shares

    <0.01% of the 13F portfolio, value $21,931.

    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 1,070 shares
    Change vs previous 13F +1,069 shares

    <0.01% of the 13F portfolio, value $68,962.

    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 1 shares
    Change vs previous 13F -169 shares

    <0.01% of the 13F portfolio, value $63.

    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 170 shares
    Change vs previous 13F +105 shares

    <0.01% of the 13F portfolio, value $12,556.

    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 65 shares
    Change vs previous 13F -75 shares

    <0.01% of the 13F portfolio, value $4,087.

    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 140 shares
    Change vs previous 13F +15 shares

    <0.01% of the 13F portfolio, value $8,163.

    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).

  7. period ended2024-12-31
    13F 125 shares
    Change vs previous 13F +12 shares

    <0.01% of the 13F portfolio, value $7,061.

    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).

  8. period ended2024-09-30
    13F 113 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $9,438.

    13F-HR 0001859606-24-000010 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).