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TWO SIGMA INVESTMENTS, LP: AMPL position timeline

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

TWO SIGMA INVESTMENTS, LP held 416,224 AMPL 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 416,224 shares
    Change vs previous 13F -275,437 shares

    <0.01% of the 13F portfolio, value $3,184,114.

    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 691,661 shares
    Share basis changed not comparable

    Membership change: TWO SIGMA ADVISERS, LP left the group. <0.01% of the 13F portfolio, value $4,717,128.

    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 1,601,774 shares
    Change vs previous 13F +643,911 shares

    0.02% of the 13F portfolio, value $18,548,543.

    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: 1,041,274 shares
    • TWO SIGMA ADVISERS, LP: 560,500 shares

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

  4. period ended2025-09-30
    13F 957,863 shares
    Change vs previous 13F +299,085 shares

    0.01% of the 13F portfolio, value $10,268,291.

    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: 695,863 shares
    • TWO SIGMA ADVISERS, LP: 262,000 shares

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

  5. period ended2025-06-30
    13F 658,778 shares
    Change vs previous 13F +625,678 shares

    0.01% of the 13F portfolio, value $8,168,847.

    13F-HR 0000899140-25-000964 filed by TWO SIGMA INVESTMENTS, LP
    Filed (acceptance time not in the bulk data set), ingested

    • TWO SIGMA INVESTMENTS, LP: 472,278 shares
    • TWO SIGMA ADVISERS, LP: 186,500 shares

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

  6. period ended2025-03-31
    13F 33,100 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $337,289.

    13F-HR 0000899140-25-000679 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).