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Disclosery

Tweedy, Browne Co LLC: ATMU position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Tweedy, Browne Co LLC on ATMU, newest first. How the timeline and the estimate are built.

Tweedy, Browne Co LLC held 0 ATMU shares at 2026-03-31 per its 13F-HR filed 2026-05-06.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -40,550 shares

    13F-HR 0001193125-26-208439 filed by Tweedy, Browne Co LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-12-31
    13F 40,550 shares
    Change vs previous 13F -48,607 shares

    0.17% of the 13F portfolio, value $2,104,950.

    13F-HR 0001193125-26-033986 filed by Tweedy, Browne Co LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-09-30
    13F 89,157 shares
    Change vs previous 13F -429 shares

    0.35% of the 13F portfolio, value $4,020,089.

    13F-HR 0001193125-25-288943 filed by Tweedy, Browne Co LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-06-30
    13F 89,586 shares
    Change vs previous 13F 0 shares

    0.3% of the 13F portfolio, value $3,262,722.

    13F-HR 0000950123-25-006713 filed by Tweedy, Browne Co LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-03-31
    13F 89,586 shares
    Change vs previous 13F -42,146 shares

    0.29% of the 13F portfolio, value $3,290,494.

    13F-HR 0000950123-25-005518 filed by Tweedy, Browne Co LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2024-12-31
    13F 131,732 shares
    Change vs previous 13F 0 shares

    0.35% of the 13F portfolio, value $5,161,260.

    13F-HR 0000950123-25-001787 filed by Tweedy, Browne Co LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-09-30
    13F 131,732 shares
    Change vs previous 13F not available

    0.24% of the 13F portfolio, value $4,943,902.

    13F-HR 0000950123-24-011077 filed by Tweedy, Browne Co LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).