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WELLINGTON MANAGEMENT GROUP LLP: AM position timeline

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

WELLINGTON MANAGEMENT GROUP LLP held 571,156 AM 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 571,156 shares
    Change vs previous 13F +169,397 shares

    <0.01% of the 13F portfolio, value $12,993,800.

    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 401,759 shares
    Change vs previous 13F +183,201 shares

    <0.01% of the 13F portfolio, value $9,160,105.

    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 218,558 shares
    Change vs previous 13F -223,742 shares

    <0.01% of the 13F portfolio, value $3,888,147.

    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 442,300 shares
    Change vs previous 13F -227,112 shares

    <0.01% of the 13F portfolio, value $8,598,312.

    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 669,412 shares
    Change vs previous 13F +106,372 shares

    <0.01% of the 13F portfolio, value $12,685,357.

    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 563,040 shares
    Change vs previous 13F +221,332 shares

    <0.01% of the 13F portfolio, value $10,134,720.

    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 341,708 shares
    Change vs previous 13F -171,406 shares

    <0.01% of the 13F portfolio, value $5,156,374.

    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 513,114 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $7,722,366.

    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).