Skip to content
Disclosery

RENAISSANCE TECHNOLOGIES LLC: AMPX position timeline

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

RENAISSANCE TECHNOLOGIES LLC held 1,408,925 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 1,408,925 shares
    Change vs previous 13F +1,049,400 shares

    0.03% of the 13F portfolio, value $19,527,701.

    13F-HR 0001037389-26-000059 filed by RENAISSANCE TECHNOLOGIES LLC
    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 359,525 shares
    Change vs previous 13F +246,700 shares

    0.01% of the 13F portfolio, value $6,061,592.

    13F-HR 0001037389-26-000033 filed by RENAISSANCE TECHNOLOGIES LLC
    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 112,825 shares
    Change vs previous 13F +100,425 shares

    <0.01% of the 13F portfolio, value $890,189.

    13F-HR 0001037389-26-000023 filed by RENAISSANCE TECHNOLOGIES LLC
    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 12,400 shares
    Change vs previous 13F -1,334,200 shares

    <0.01% of the 13F portfolio, value $130,448.

    13F-HR 0001037389-25-000064 filed by RENAISSANCE TECHNOLOGIES LLC
    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 1,346,600 shares
    Change vs previous 13F +1,332,200 shares

    0.01% of the 13F portfolio, value $5,669,186.

    13F-HR 0001037389-25-000034 filed by RENAISSANCE TECHNOLOGIES LLC
    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 14,400 shares
    Change vs previous 13F -750,700 shares

    <0.01% of the 13F portfolio, value $38,592.

    13F-HR 0001037389-25-000023 filed by RENAISSANCE TECHNOLOGIES LLC
    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 765,100 shares
    Change vs previous 13F +752,000 shares

    <0.01% of the 13F portfolio, value $2,142,280.

    13F-HR 0001037389-25-000009 filed by RENAISSANCE TECHNOLOGIES LLC
    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 13,100 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $14,541.

    13F-HR 0001037389-24-000091 filed by RENAISSANCE TECHNOLOGIES LLC
    Filed (acceptance time not in the bulk data set), ingested

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