# AMERICAN SECURITIES LLC: Form 13F holdings

An institutional investment manager in NEW YORK, NY. SEC CIK 1475483.

- Quarter ended: 2026-06-30
- Filed: 2026-08-26
- Reported value: $3.75bn
- Positions: 2 (2 lines in the filing's table; lines for the same security and option type are added together here)
- Compared with: the 13F for the quarter ended 2026-03-31
- Filing: https://www.sec.gov/Archives/edgar/data/1475483/000114036126034405/

## Holdings

As filed, largest first. Reported value is what the manager stated at the quarter end (Jun 30, 2026), in US dollars; it is filing data, not a price. Weight is the share of the total reported value.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| [SOLV Energy Inc (MWH)](/companies/mwh.md) | Class A Common Stock | $2.82bn | 75.2% | 82,920,401 |  | Reduced −8,853,170 |
| [Amentum Holdings, Inc. (AMTM)](/companies/amtm.md) | Common Stock | $930.7m | 24.8% | 45,026,743 |  | Unchanged |

Source: SEC EDGAR, Form 13F-HR, accession 0001140361-26-034405. Last ingested by Listed: Oct 22, 2026, 05:26 ET. No prices; not investment advice.