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WELLINGTON MANAGEMENT GROUP LLP: AMT position timeline

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

WELLINGTON MANAGEMENT GROUP LLP held 792,311 AMT 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 792,311 shares
    Change vs previous 13F +44,576 shares

    0.02% of the 13F portfolio, value $129,598,311.

    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 747,735 shares
    Change vs previous 13F +15,848 shares

    0.02% of the 13F portfolio, value $129,044,106.

    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 731,887 shares
    Change vs previous 13F -1,865,771 shares

    0.02% of the 13F portfolio, value $128,497,400.

    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 2,597,658 shares
    Change vs previous 13F -4,968,413 shares

    0.09% of the 13F portfolio, value $499,581,586.

    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 7,566,071 shares
    Change vs previous 13F +419,723 shares

    0.3% of the 13F portfolio, value $1,672,253,012.

    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 7,146,348 shares
    Change vs previous 13F -937,895 shares

    0.3% of the 13F portfolio, value $1,555,045,325.

    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 8,084,243 shares
    Change vs previous 13F -3,296,432 shares

    0.27% of the 13F portfolio, value $1,482,731,009.

    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 11,380,675 shares
    Change vs previous 13F not available

    0.46% of the 13F portfolio, value $2,646,689,778.

    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).