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TWO SIGMA INVESTMENTS, LP: ATKR position timeline

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

TWO SIGMA INVESTMENTS, LP held 402,131 ATKR 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 402,131 shares
    Change vs previous 13F +49,131 shares

    0.02% of the 13F portfolio, value $30,578,041.

    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 353,000 shares
    Share basis changed not comparable

    Membership change: TWO SIGMA ADVISERS, LP left the group. 0.02% of the 13F portfolio, value $20,795,230.

    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 286,631 shares
    Change vs previous 13F +63,733 shares

    0.02% of the 13F portfolio, value $18,129,411.

    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: 219,331 shares
    • TWO SIGMA ADVISERS, LP: 67,300 shares

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

  4. period ended2025-09-30
    13F 222,898 shares
    Change vs previous 13F +155,657 shares

    0.01% of the 13F portfolio, value $13,984,621.

    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: 180,998 shares
    • TWO SIGMA ADVISERS, LP: 41,900 shares

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

  5. period ended2025-06-30
    13F 67,241 shares
    Change vs previous 13F -74,968 shares

    0.01% of the 13F portfolio, value $4,743,853.

    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: 67,241 shares
    • TWO SIGMA ADVISERS, LP: 0 shares

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

  6. period ended2025-03-31
    13F 142,209 shares
    Change vs previous 13F +98,181 shares

    0.01% of the 13F portfolio, value $8,531,118.

    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: 122,909 shares
    • TWO SIGMA ADVISERS, LP: 19,300 shares

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

  7. period ended2024-12-31
    13F 44,028 shares
    Change vs previous 13F -47,969 shares

    0.01% of the 13F portfolio, value $3,674,137.

    13F-HR 0000899140-25-000265 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).

  8. period ended2024-09-30
    13F 91,997 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $7,795,826.

    13F-HR 0000919574-24-006611 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).