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Disclosery

CITADEL ADVISORS LLC: UMC position timeline

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

CITADEL ADVISORS LLC held 210,158 UMC 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 210,158 shares
    Change vs previous 13F -555,164 shares

    <0.01% of the 13F portfolio, value $5,718,399.

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

  2. period ended2026-03-31
    13F 765,322 shares
    Change vs previous 13F -358,988 shares

    <0.01% of the 13F portfolio, value $6,872,592.

    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 1,124,310 shares
    Change vs previous 13F +1,073,771 shares

    0.01% of the 13F portfolio, value $8,837,077.

    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 50,539 shares
    Change vs previous 13F -542,340 shares

    <0.01% of the 13F portfolio, value $383,086.

    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 592,879 shares
    Change vs previous 13F -2,011,139 shares

    <0.01% of the 13F portfolio, value $4,535,524.

    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 2,604,018 shares
    Change vs previous 13F -21,933 shares

    0.02% of the 13F portfolio, value $18,618,728.

    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 2,625,951 shares
    Change vs previous 13F +1,366,605 shares

    0.02% of the 13F portfolio, value $17,042,422.

    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 1,259,346 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $10,603,693.

    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).