AMERICAN SECURITIES LLC - Stock Holdings in 13F Filings (SEC)

Updated on March 15, 2026.

Based on 13F Filings filed with the SEC on February 12, 2026, for the 2025 Q4 period, AMERICAN SECURITIES LLC held in its portfolio 1 assets valued at $1,305,775,547 (i.e. $1.31B).

The most valuable assets in the portfolio included: Amentum Holdings, Inc. ($1.31B).

The chart below shows the top 1 valuable assets, and the table below shows the top 1 valuable assets.

You can see similar for other investment managers.

Related Topics: SEC Topic List.

Data Source: SEC.

Top Valuable Stocks in AMERICAN SECURITIES LLC Portfolio

Amentum Holdings, Inc.

AMERICAN SECURITIES LLC - Stock Holdings in 13F Filings (SEC)

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Name of Issuer	No. of Shares	Value ($)	Class
Amentum Holdings, Inc.	45026743	1305775547	Common Stock