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WELLINGTON MANAGEMENT GROUP LLP: AME position timeline

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

WELLINGTON MANAGEMENT GROUP LLP held 2,994,077 AME 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 2,994,077 shares
    Change vs previous 13F +196,986 shares

    0.12% of the 13F portfolio, value $724,386,989.

    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 2,797,091 shares
    Change vs previous 13F -10,573 shares

    0.11% of the 13F portfolio, value $599,584,427.

    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 2,807,664 shares
    Change vs previous 13F +2,110,818 shares

    0.1% of the 13F portfolio, value $576,441,496.

    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 696,846 shares
    Change vs previous 13F -199,533 shares

    0.02% of the 13F portfolio, value $131,007,048.

    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 896,379 shares
    Change vs previous 13F -28,774 shares

    0.03% of the 13F portfolio, value $162,208,744.

    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 925,153 shares
    Change vs previous 13F -14,768 shares

    0.03% of the 13F portfolio, value $159,255,838.

    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 939,921 shares
    Change vs previous 13F -17,400 shares

    0.03% of the 13F portfolio, value $169,430,159.

    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 957,321 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $164,381,590.

    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).