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TWO SIGMA INVESTMENTS, LP: ATRO position timeline

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

TWO SIGMA INVESTMENTS, LP held 254,758 ATRO 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 254,758 shares
    Change vs previous 13F +38,031 shares

    0.02% of the 13F portfolio, value $20,701,635.

    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 216,727 shares
    Share basis changed not comparable

    Membership change: TWO SIGMA ADVISERS, LP left the group. 0.01% of the 13F portfolio, value $14,462,193.

    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 41,203 shares
    Change vs previous 13F -29,699 shares

    <0.01% of the 13F portfolio, value $2,234,851.

    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: 33,303 shares
    • TWO SIGMA ADVISERS, LP: 7,900 shares

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

  4. period ended2025-09-30
    13F 70,902 shares
    Change vs previous 13F -143,342 shares

    <0.01% of the 13F portfolio, value $3,233,840.

    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: 61,002 shares
    • TWO SIGMA ADVISERS, LP: 9,900 shares

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

  5. period ended2025-06-30
    13F 214,244 shares
    Change vs previous 13F -190,116 shares

    0.01% of the 13F portfolio, value $7,172,889.

    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: 120,744 shares
    • TWO SIGMA ADVISERS, LP: 93,500 shares

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

  6. period ended2025-03-31
    13F 404,360 shares
    Change vs previous 13F +127,812 shares

    0.01% of the 13F portfolio, value $9,773,381.

    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: 241,960 shares
    • TWO SIGMA ADVISERS, LP: 162,400 shares

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

  7. period ended2024-12-31
    13F 276,548 shares
    Change vs previous 13F +154,669 shares

    0.01% of the 13F portfolio, value $4,413,706.

    13F-HR 0000899140-25-000265 filed by TWO SIGMA INVESTMENTS, LP
    Filed (acceptance time not in the bulk data set), ingested

    • TWO SIGMA INVESTMENTS, LP: 177,148 shares
    • TWO SIGMA ADVISERS, LP: 99,400 shares

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

  8. period ended2024-09-30
    13F 121,879 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $2,374,203.

    13F-HR 0000919574-24-006611 filed by TWO SIGMA INVESTMENTS, LP
    Filed (acceptance time not in the bulk data set), ingested

    • TWO SIGMA INVESTMENTS, LP: 68,379 shares
    • TWO SIGMA ADVISERS, LP: 53,500 shares

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