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ROYAL BANK OF CANADA: AMPX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ROYAL BANK OF CANADA on AMPX, newest first. How the timeline and the estimate are built.

ROYAL BANK OF CANADA held 115,322 AMPX shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 115,322 shares
    Change vs previous 13F +13,408 shares

    <0.01% of the 13F portfolio, value $1,599,000.

    13F-HR 0001140361-26-033080 filed by ROYAL BANK OF CANADA
    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 101,914 shares
    Change vs previous 13F +9,998 shares

    <0.01% of the 13F portfolio, value $1,718,000.

    13F-HR 0001140361-26-021585 filed by ROYAL BANK OF CANADA
    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 91,916 shares
    Change vs previous 13F -35,470 shares

    <0.01% of the 13F portfolio, value $726,000.

    13F-HR 0001140361-26-005577 filed by ROYAL BANK OF CANADA
    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 127,386 shares
    Change vs previous 13F +111,701 shares

    <0.01% of the 13F portfolio, value $1,340,000.

    13F-HR 0001140361-25-042265 filed by ROYAL BANK OF CANADA
    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/A 15,685 shares
    Change vs previous 13F -49,774 shares

    <0.01% of the 13F portfolio, value $66,000.

    13F-HR/A 0001140361-25-042957 filed by ROYAL BANK OF CANADA
    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/A 65,459 shares
    Change vs previous 13F +39,813 shares

    <0.01% of the 13F portfolio, value $176,000.

    13F-HR/A 0001140361-25-042953 filed by ROYAL BANK OF CANADA
    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 25,646 shares
    Change vs previous 13F +23,196 shares

    <0.01% of the 13F portfolio, value $71,000.

    13F-HR 0001140361-25-004660 filed by ROYAL BANK OF CANADA
    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 2,450 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $3,000.

    13F-HR 0001140361-24-046848 filed by ROYAL BANK OF CANADA
    Filed (acceptance time not in the bulk data set), ingested

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