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RENAISSANCE TECHNOLOGIES LLC: ACM position timeline

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

RENAISSANCE TECHNOLOGIES LLC held 746,877 ACM 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 746,877 shares
    Change vs previous 13F +84,600 shares

    0.07% of the 13F portfolio, value $52,132,015.

    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 662,277 shares
    Change vs previous 13F +24,700 shares

    0.09% of the 13F portfolio, value $56,174,335.

    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 637,577 shares
    Change vs previous 13F +187,600 shares

    0.09% of the 13F portfolio, value $60,780,215.

    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 449,977 shares
    Change vs previous 13F +187,250 shares

    0.08% of the 13F portfolio, value $58,708,499.

    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 262,727 shares
    Change vs previous 13F -83,650 shares

    0.04% of the 13F portfolio, value $29,651,369.

    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 346,377 shares
    Change vs previous 13F +19,900 shares

    0.05% of the 13F portfolio, value $32,119,539.

    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 326,477 shares
    Change vs previous 13F -198,700 shares

    0.05% of the 13F portfolio, value $34,874,273.

    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 525,177 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $54,235,029.

    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).