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MORGAN STANLEY: AMPX position timeline

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

MORGAN STANLEY held 5,105,505 AMPX shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 5,105,505 shares
    Change vs previous 13F +1,943,338 shares

    <0.01% of the 13F portfolio, value $70,762,300.

    13F-HR 0000895421-26-000243 filed by MORGAN STANLEY
    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 3,162,167 shares
    Change vs previous 13F +352,346 shares

    <0.01% of the 13F portfolio, value $53,314,136.

    13F-HR 0000895421-26-000183 filed by MORGAN STANLEY
    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/A 2,809,821 shares
    Change vs previous 13F +66,116 shares

    <0.01% of the 13F portfolio, value $22,169,489.

    13F-HR/A 0000895421-26-000187 filed by MORGAN STANLEY
    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/A 2,743,705 shares
    Change vs previous 13F +810,078 shares

    <0.01% of the 13F portfolio, value $28,863,777.

    13F-HR/A 0000895421-26-000186 filed by MORGAN STANLEY
    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 1,933,627 shares
    Change vs previous 13F +1,749,989 shares

    <0.01% of the 13F portfolio, value $8,140,570.

    13F-HR 0000895421-25-000499 filed by MORGAN STANLEY
    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 183,638 shares
    Change vs previous 13F +42,593 shares

    <0.01% of the 13F portfolio, value $492,151.

    13F-HR 0000895421-25-000381 filed by MORGAN STANLEY
    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/A 141,045 shares
    Change vs previous 13F +16,911 shares

    <0.01% of the 13F portfolio, value $394,926.

    13F-HR/A 0000895421-25-000380 filed by MORGAN STANLEY
    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/A 124,134 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $137,789.

    13F-HR/A 0000895421-25-000379 filed by MORGAN STANLEY
    Filed (acceptance time not in the bulk data set), ingested

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