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What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
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CIK: 0001475483
Total reported value
$3.8B
$3.8B
1 檔
34.8%
According to the latest 13F quarterly dataset, American Securities LLC managed an equity portfolio of $3.8B at the end of Q4 2025, spanning 1 distinct U.S. exchange-listed positions.
During Q4 2025, American Securities LLC's portfolio maintained high stability with no major positional turnover, reflecting a continuous long-term holding approach.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | AMTM | Amentum Holdings Inc | Stock-Industrials | 100.00% | -5.09% | — |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | AMTM | Amentum Holdings Inc | — | — | Unchanged |
According to official SEC Form 13F filings, American Securities LLC reported a total U.S. public equity portfolio value of $3.8B across 1 disclosed positions in Q4 2025.
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Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including AMTM) accounted for 34.8% of total reported equity market value during Q4 2025.
During Q4 2025, American Securities LLC's top holdings by market value included AMTM (100.0%). The largest single position, AMTM, represented 100.0% of total portfolio value.
In Q4 2025, American Securities LLC made 0 total portfolio adjustments, initiating 0 new buys, adding to 0 positions, trimming 0 holdings, and fully liquidating 0 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
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