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BlackRock, Inc.: CENX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BlackRock, Inc. on CENX, newest first. How the timeline and the estimate are built.

BlackRock, Inc. held 10,304,905 CENX shares at 2026-06-30 per its 13F-HR filed 2026-08-07, and reported 10,395,973 shares, 10.5%, in a 13G/A filed 2026-10-05.

Estimated current stake: 10,395,973 shares, 10.5% of the class

Estimated from 13G/A of 2026-10-05. As of 2026-09-30, 13G/A 0002012383-26-003330.

Shares are the reporting group's aggregate and may include entities that do not file a 13F.

Percent of portfolio stays on the 13F for 2026-06-30.

  1. event date2026-09-30
    13G/A 10,395,973 shares
    Share basis changed not comparable

    10.5% of the class. Different basis (group aggregate from 13G/A).

    13G/A 0002012383-26-003330 filed by BlackRock, Inc.
    Accepted , ingested

    A 13D/G states the aggregate of its reporting persons, which may include entities that do not file a 13F.

  2. period ended2026-06-30
    13F 10,304,905 shares
    Change vs previous 13F +1,294,526 shares

    0.01% of the 13F portfolio, value $474,128,679.

    13F-HR 0002012383-26-003238 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 9,010,379 shares
    Change vs previous 13F -474,188 shares

    0.01% of the 13F portfolio, value $528,819,144.

    13F-HR 0002012383-26-001841 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 9,484,567 shares
    Change vs previous 13F -643,392 shares

    0.01% of the 13F portfolio, value $371,605,334.

    13F-HR 0002012383-26-000920 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 10,127,959 shares
    Change vs previous 13F -31,317 shares

    0.01% of the 13F portfolio, value $297,356,875.

    13F-HR 0002012383-25-002949 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 10,159,276 shares
    Change vs previous 13F +266,591 shares

    <0.01% of the 13F portfolio, value $183,070,155.

    13F-HR 0001060021-25-000120 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F 9,892,685 shares
    Change vs previous 13F -604,298 shares

    <0.01% of the 13F portfolio, value $183,608,228.

    13F-HR 0001576419-25-000869 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 10,496,983 shares
    Change vs previous 13F -245,296 shares

    <0.01% of the 13F portfolio, value $191,255,026.

    13F-HR 0001060021-25-000002 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  9. period ended2024-09-30
    13F 10,742,279 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $174,347,188.

    13F-HR 0001426459-24-000006 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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