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TUDOR INVESTMENT CORP ET AL: ATEC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of TUDOR INVESTMENT CORP ET AL on ATEC, newest first. How the timeline and the estimate are built.

TUDOR INVESTMENT CORP ET AL held 270,709 ATEC 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 270,709 shares
    Change vs previous 13F +4,160 shares

    0.01% of the 13F portfolio, value $2,341,633.

    13F-HR 0000902664-26-003485 filed by TUDOR INVESTMENT CORP ET AL
    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 266,549 shares
    Change vs previous 13F -621,254 shares

    0.02% of the 13F portfolio, value $2,900,053.

    13F-HR 0000902664-26-002516 filed by TUDOR INVESTMENT CORP ET AL
    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 887,803 shares
    Change vs previous 13F -12,688 shares

    0.1% of the 13F portfolio, value $18,679,375.

    13F-HR 0000902664-26-001113 filed by TUDOR INVESTMENT CORP ET AL
    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/A 900,491 shares
    Change vs previous 13F +773,367 shares

    0.08% of the 13F portfolio, value $13,093,139.

    13F-HR/A 0000902664-25-005239 filed by TUDOR INVESTMENT CORP ET AL
    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 127,124 shares
    Change vs previous 13F -290,542 shares

    0.01% of the 13F portfolio, value $1,411,076.

    13F-HR 0000902664-25-003613 filed by TUDOR INVESTMENT CORP ET AL
    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 417,666 shares
    Change vs previous 13F -168,199 shares

    0.04% of the 13F portfolio, value $4,235,133.

    13F-HR 0000902664-25-002382 filed by TUDOR INVESTMENT CORP ET AL
    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 585,865 shares
    Change vs previous 13F +437,690 shares

    0.06% of the 13F portfolio, value $5,378,241.

    13F-HR 0000902664-25-001008 filed by TUDOR INVESTMENT CORP ET AL
    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 148,175 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $823,853.

    13F-HR 0000902664-24-006581 filed by TUDOR INVESTMENT CORP ET AL
    Filed (acceptance time not in the bulk data set), ingested

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