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Cantillon Capital Management LLC: IBKR position timeline

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

Cantillon Capital Management LLC held 517,833 IBKR 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 517,833 shares
    Change vs previous 13F -10,728,048 shares

    6.78% of the 13F portfolio, value $45,072,184.

    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).

  2. period ended2026-03-31
    13F 11,245,881 shares
    Change vs previous 13F -1,514,023 shares

    5.01% of the 13F portfolio, value $754,261,239.

    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 12,759,904 shares
    Change vs previous 13F +95,878 shares

    4.44% of the 13F portfolio, value $820,589,426.

    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 12,664,026 shares
    Change vs previous 13F -139,605 shares

    4.8% of the 13F portfolio, value $871,411,630.

    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 12,803,631 shares
    Change vs previous 13F +9,509,805 shares

    4.1% of the 13F portfolio, value $709,449,194.

    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 3,293,826 shares
    Change vs previous 13F -101,864 shares

    3.53% of the 13F portfolio, value $545,424,647.

    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 3,395,690 shares
    Change vs previous 13F +18,047 shares

    3.63% of the 13F portfolio, value $599,916,552.

    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 3,377,643 shares
    Change vs previous 13F not available

    2.88% of the 13F portfolio, value $470,708,328.

    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).