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AMERICAN SECURITIES LLC: AMTM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of AMERICAN SECURITIES LLC on AMTM, newest first. How the timeline and the estimate are built.

AMERICAN SECURITIES LLC held 45,026,743 AMTM shares at 2026-06-30 per its 13F-HR filed 2026-08-26.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 45,026,743 shares
    Change vs previous 13F 0 shares

    24.79% of the 13F portfolio, value $930,702,778.

    13F-HR 0001140361-26-034405 filed by AMERICAN SECURITIES 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 45,026,743 shares
    Change vs previous 13F 0 shares

    29.88% of the 13F portfolio, value $1,174,297,457.

    13F-HR 0001140361-26-021229 filed by AMERICAN SECURITIES 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 45,026,743 shares
    Change vs previous 13F 0 shares

    100% of the 13F portfolio, value $1,305,775,547.

    13F-HR 0001140361-26-004947 filed by AMERICAN SECURITIES 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 45,026,743 shares
    Change vs previous 13F 0 shares

    100% of the 13F portfolio, value $1,078,390,495.

    13F-HR 0001140361-25-041164 filed by AMERICAN SECURITIES 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 45,026,743 shares
    Change vs previous 13F +1,132,839 shares

    100% of the 13F portfolio, value $1,063,081,402.

    13F-HR 0001140361-25-027743 filed by AMERICAN SECURITIES 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 43,893,904 shares
    Change vs previous 13F 0 shares

    100% of the 13F portfolio, value $798,869,053.

    13F-HR 0001140361-25-018266 filed by AMERICAN SECURITIES 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/A 43,893,904 shares
    Change vs previous 13F not available

    100% of the 13F portfolio, value $923,088,801.

    13F-HR/A 0001140361-25-004396 filed by AMERICAN SECURITIES LLC
    Filed (acceptance time not in the bulk data set), ingested

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