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Disclosery

Cantillon Capital Management LLC: AMT position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Cantillon Capital Management LLC on AMT, newest first. How the timeline and the estimate are built.

Cantillon Capital Management LLC held 0 AMT shares at 2026-06-30 per its 13F-HR filed 2026-07-29.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 0 shares
    Change vs previous 13F -1,612,473 shares

    13F-HR 0001279936-26-000005 filed by Cantillon Capital Management 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 ended2026-03-31
    13F 1,612,473 shares
    Change vs previous 13F -218,052 shares

    1.85% of the 13F portfolio, value $278,280,591.

    13F-HR 0001279936-26-000004 filed by Cantillon Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 1,830,525 shares
    Change vs previous 13F +14,709 shares

    1.74% of the 13F portfolio, value $321,385,274.

    13F-HR 0001279936-26-000001 filed by Cantillon Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F/A 1,815,816 shares
    Change vs previous 13F -20,035 shares

    1.92% of the 13F portfolio, value $349,217,733.

    13F-HR/A 0000899140-26-000221 filed by Cantillon Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F/A 1,835,851 shares
    Change vs previous 13F -53,339 shares

    2.35% of the 13F portfolio, value $405,759,788.

    13F-HR/A 0000899140-26-000220 filed by Cantillon Capital Management LLC
    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/A 1,889,190 shares
    Change vs previous 13F -58,405 shares

    2.66% of the 13F portfolio, value $411,087,744.

    13F-HR/A 0000899140-26-000219 filed by Cantillon Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 1,947,595 shares
    Change vs previous 13F +10,343 shares

    2.16% of the 13F portfolio, value $357,208,399.

    13F-HR 0001085146-25-000819 filed by Cantillon Capital Management LLC
    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 1,937,252 shares
    Change vs previous 13F not available

    2.75% of the 13F portfolio, value $450,527,325.

    13F-HR 0001085146-24-005445 filed by Cantillon Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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