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AMERICAN SECURITIES LLC: MWH position timeline

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

AMERICAN SECURITIES LLC held 82,920,401 MWH 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 82,920,401 shares
    Change vs previous 13F -8,853,170 shares

    75.21% of the 13F portfolio, value $2,823,439,654.

    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 91,773,571 shares
    Change vs previous 13F not available

    70.12% of the 13F portfolio, value $2,755,960,337.

    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).