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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
2 檔
104.7%
As reported in its official Q1 2026 Form 13F filing, American Securities LLC's tracked investment portfolio stood at $3.8B with 2 total positions.
In Q1 2026, American Securities LLC displayed an active expansion posture, initiating 1 new positions and adding to 0 existing holdings, outstripping position reductions.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | MWH | Solv Energy Inc-cl A | Stock-Other | 70.12% | +5.09% | — | |
| 2 | AMTM | Amentum Holdings Inc | Stock-Industrials | 29.88% | -5.09% | — |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | AMTM | Amentum Holdings Inc | -70.1% | — | Unchanged |
| 2 | MWH | Solv Energy Inc-cl A | — | NEW | New buy |
According to official SEC Form 13F filings, American Securities LLC reported a total U.S. public equity portfolio value of $3.8B across 2 disclosed positions in Q1 2026.
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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 MWH, AMTM) accounted for 104.7% of total reported equity market value during Q1 2026.
Top New Position Initiated
MWH
市值: $2.8B
During Q1 2026, American Securities LLC's top holdings by market value included MWH (70.1%)、AMTM (29.9%). The largest single position, MWH, represented 70.1% of total portfolio value.
In Q1 2026, American Securities LLC made 1 total portfolio adjustments, initiating 1 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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