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TWO SIGMA INVESTMENTS, LP: AMKR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of TWO SIGMA INVESTMENTS, LP on AMKR, newest first. How the timeline and the estimate are built.

TWO SIGMA INVESTMENTS, LP held 1,069,101 AMKR 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 1,069,101 shares
    Change vs previous 13F -144,793 shares

    0.07% of the 13F portfolio, value $92,188,579.

    13F-HR 0000899140-26-000855 filed by TWO SIGMA INVESTMENTS, LP
    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 1,213,894 shares
    Share basis changed not comparable

    Membership change: TWO SIGMA ADVISERS, LP left the group. 0.05% of the 13F portfolio, value $54,661,647.

    13F-HR 0000899140-26-000547 filed by TWO SIGMA INVESTMENTS, LP
    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 688,182 shares
    Change vs previous 13F +635,326 shares

    0.02% of the 13F portfolio, value $27,169,425.

    13F-HR 0000899140-26-000232 filed by TWO SIGMA INVESTMENTS, LP
    Filed (acceptance time not in the bulk data set), ingested

    • TWO SIGMA INVESTMENTS, LP: 552,782 shares
    • TWO SIGMA ADVISERS, LP: 135,400 shares

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

  4. period ended2025-09-30
    13F 52,856 shares
    Change vs previous 13F +25,114 shares

    <0.01% of the 13F portfolio, value $1,501,110.

    13F-HR 0000899140-25-001286 filed by TWO SIGMA INVESTMENTS, LP
    Filed (acceptance time not in the bulk data set), ingested

    • TWO SIGMA INVESTMENTS, LP: 37,856 shares
    • TWO SIGMA ADVISERS, LP: 15,000 shares

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

  5. period ended2025-06-30
    13F 27,742 shares
    Change vs previous 13F -107,867 shares

    <0.01% of the 13F portfolio, value $582,305.

    13F-HR 0000899140-25-000964 filed by TWO SIGMA INVESTMENTS, LP
    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 135,609 shares
    Change vs previous 13F +119,609 shares

    0.01% of the 13F portfolio, value $2,449,099.

    13F-HR 0000899140-25-000680 filed by TWO SIGMA INVESTMENTS, LP
    Filed (acceptance time not in the bulk data set), ingested

    • TWO SIGMA INVESTMENTS, LP: 135,609 shares
    • TWO SIGMA ADVISERS, LP: 0 shares

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

  7. period ended2024-12-31
    13F 16,000 shares
    Change vs previous 13F -16,400 shares

    <0.01% of the 13F portfolio, value $411,040.

    13F-HR 0000899140-25-000264 filed by TWO SIGMA ADVISERS, LP
    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 32,400 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $991,440.

    13F-HR 0000919574-24-006607 filed by TWO SIGMA ADVISERS, LP
    Filed (acceptance time not in the bulk data set), ingested

    • TWO SIGMA INVESTMENTS, LP: 0 shares
    • TWO SIGMA ADVISERS, LP: 32,400 shares

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