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WELLINGTON MANAGEMENT GROUP LLP: CENX position timeline

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

WELLINGTON MANAGEMENT GROUP LLP held 548,898 CENX 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 548,898 shares
    Change vs previous 13F +170,451 shares

    <0.01% of the 13F portfolio, value $25,254,797.

    13F-HR 0000902219-26-000311 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 378,447 shares
    Change vs previous 13F +180,604 shares

    <0.01% of the 13F portfolio, value $22,211,054.

    13F-HR 0000902219-26-000209 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 197,843 shares
    Change vs previous 13F +3,749 shares

    <0.01% of the 13F portfolio, value $7,751,489.

    13F-HR 0000902219-26-000103 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 194,094 shares
    Change vs previous 13F -787,508 shares

    <0.01% of the 13F portfolio, value $5,698,600.

    13F-HR 0000902219-25-000462 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 981,602 shares
    Change vs previous 13F +287,850 shares

    <0.01% of the 13F portfolio, value $17,688,467.

    13F-HR 0000902219-25-000356 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 693,752 shares
    Change vs previous 13F +282,163 shares

    <0.01% of the 13F portfolio, value $12,876,036.

    13F-HR 0000902219-25-000242 filed by WELLINGTON MANAGEMENT GROUP LLP
    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/A 411,589 shares
    Change vs previous 13F +2,358 shares

    <0.01% of the 13F portfolio, value $7,499,152.

    13F-HR 0000902219-25-000131 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 409,231 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $6,641,819.

    13F-HR 0000902219-24-000498 filed by WELLINGTON MANAGEMENT GROUP LLP
    Filed (acceptance time not in the bulk data set), ingested

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