Skip to content
Disclosery

WELLINGTON MANAGEMENT GROUP LLP: ATMU position timeline

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

WELLINGTON MANAGEMENT GROUP LLP held 1,445,763 ATMU 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 1,445,763 shares
    Change vs previous 13F +59,342 shares

    0.01% of the 13F portfolio, value $73,719,455.

    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 1,386,421 shares
    Change vs previous 13F -216,074 shares

    0.01% of the 13F portfolio, value $78,707,120.

    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 1,602,495 shares
    Change vs previous 13F -616,375 shares

    0.01% of the 13F portfolio, value $83,185,515.

    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 2,218,870 shares
    Change vs previous 13F -414,355 shares

    0.02% of the 13F portfolio, value $100,048,849.

    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 2,633,225 shares
    Change vs previous 13F +207,568 shares

    0.02% of the 13F portfolio, value $95,902,054.

    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 2,425,657 shares
    Change vs previous 13F +478,018 shares

    0.02% of the 13F portfolio, value $89,094,382.

    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 1,947,639 shares
    Change vs previous 13F -569,699 shares

    0.01% of the 13F portfolio, value $76,308,496.

    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 2,517,338 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $94,475,695.

    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).