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Disclosery

CITADEL ADVISORS LLC: ATEC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of CITADEL ADVISORS LLC on ATEC, newest first. How the timeline and the estimate are built.

CITADEL ADVISORS LLC held 2,461,400 ATEC shares at 2026-06-30 per its 13F-HR/A filed 2026-09-02.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 2,461,400 shares
    Change vs previous 13F +1,604,061 shares

    0.01% of the 13F portfolio, value $21,291,110.

    13F-HR/A 0001104659-26-104387 filed by CITADEL ADVISORS LLC
    Accepted , ingested

  2. period ended2026-03-31
    13F 857,339 shares
    Change vs previous 13F -480,226 shares

    0.01% of the 13F portfolio, value $9,327,849.

    13F-HR 0001104659-26-062477 filed by CITADEL ADVISORS LLC
    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 1,337,565 shares
    Change vs previous 13F +1,152,673 shares

    0.02% of the 13F portfolio, value $28,142,367.

    13F-HR 0001104659-26-016408 filed by CITADEL ADVISORS LLC
    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 184,892 shares
    Change vs previous 13F +16,739 shares

    <0.01% of the 13F portfolio, value $2,688,330.

    13F-HR 0001104659-25-112514 filed by CITADEL ADVISORS LLC
    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 168,153 shares
    Change vs previous 13F -390,916 shares

    <0.01% of the 13F portfolio, value $1,866,498.

    13F-HR 0001104659-25-078555 filed by CITADEL ADVISORS LLC
    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 559,069 shares
    Change vs previous 13F +451,400 shares

    0.01% of the 13F portfolio, value $5,668,959.

    13F-HR 0000950123-25-005687 filed by CITADEL ADVISORS LLC
    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 107,669 shares
    Change vs previous 13F -64,873 shares

    <0.01% of the 13F portfolio, value $988,401.

    13F-HR 0000950123-25-002739 filed by CITADEL ADVISORS LLC
    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 172,542 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $959,334.

    13F-HR 0000950123-24-011767 filed by CITADEL ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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