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WELLINGTON MANAGEMENT GROUP LLP: STX position timeline

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

WELLINGTON MANAGEMENT GROUP LLP held 2,414,136 STX 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 2,414,136 shares
    Change vs previous 13F +2,326,538 shares

    0.4% of the 13F portfolio, value $2,329,641,240.

    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 87,598 shares
    Change vs previous 13F -42,018 shares

    0.01% of the 13F portfolio, value $34,317,393.

    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 129,616 shares
    Change vs previous 13F +8,904 shares

    0.01% of the 13F portfolio, value $35,694,950.

    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 120,712 shares
    Change vs previous 13F -104,159 shares

    <0.01% of the 13F portfolio, value $28,495,274.

    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 224,871 shares
    Change vs previous 13F -709,125 shares

    0.01% of the 13F portfolio, value $32,455,631.

    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 933,996 shares
    Change vs previous 13F +906,840 shares

    0.02% of the 13F portfolio, value $79,342,960.

    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 27,156 shares
    Change vs previous 13F -1,862 shares

    <0.01% of the 13F portfolio, value $2,343,835.

    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 29,018 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $3,178,341.

    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).