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CITADEL ADVISORS LLC: ALK position timeline

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

CITADEL ADVISORS LLC held 1,084,977 ALK 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 1,084,977 shares
    Change vs previous 13F +253,311 shares

    0.03% of the 13F portfolio, value $56,635,799.

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

  2. period ended2026-03-31
    13F 831,666 shares
    Change vs previous 13F -1,696,968 shares

    0.02% of the 13F portfolio, value $30,588,675.

    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 2,528,634 shares
    Change vs previous 13F -710,965 shares

    0.09% of the 13F portfolio, value $127,190,291.

    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 3,239,599 shares
    Change vs previous 13F +2,740,319 shares

    0.13% of the 13F portfolio, value $161,267,238.

    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 499,280 shares
    Change vs previous 13F -2,630,438 shares

    0.02% of the 13F portfolio, value $24,704,374.

    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 3,129,718 shares
    Change vs previous 13F +721,679 shares

    0.15% of the 13F portfolio, value $154,044,720.

    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 2,408,039 shares
    Change vs previous 13F -740,641 shares

    0.14% of the 13F portfolio, value $155,920,525.

    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 3,148,680 shares
    Change vs previous 13F not available

    0.15% of the 13F portfolio, value $142,351,823.

    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).