AMERICAN SECURITIES LLC
Long book
$3.93B
Q1 2026
Positions
2
Top-10 weight
100%
concentration
Last quarter
-4.6%
SPY +14.8%
Turnover
50%
of book per quarter
Strategy in plain words
auto-generated from filingsAMERICAN SECURITIES LLC is a diversified fundamental manager, specialised in industrials (70% of the long book), running a $3.93B US long book across 2 positions.
The portfolio is extremely concentrated — the top 10 positions are almost the whole book. The portfolio is actively managed, with meaningful quarterly turnover. Current anchor positions: SOLV ENERGY INC-CL A, AMENTUM HOLDINGS INC.
Over the last 6 quarters its long book ran on average 0.6pp per quarter behind the S&P 500, beating the index in 2 of 6 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q4 2024
-13.5%
Q1 2025
+29.7%
Q2 2025
+1.4%
Q3 2025
+21.1%
Q4 2025
-10.1%
Q1 2026
-4.6%
Sector allocation
Industrials 70%
Services media 30%
Long book by quarter
What does AMERICAN SECURITIES own?
Q1 2026 13F13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 14, 2026 | 2 | $3.93B | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 12, 2026 | 1 | $1.31B | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 7, 2025 | 1 | $1.08B | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Jul 29, 2025 | 1 | $1.06B | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 12, 2025 | 1 | $798.9M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR/ARESTATEMENT | Feb 14, 2025 | 1 | $923.1M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 11, 2025 | 1 | $0 | SEC ↗ | |
| Q3 2024 | 13F-HR | Nov 12, 2024 | 1 | $0 | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 12, 2024 | 1 | $0 | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 14, 2024 | 1 | $0 | canonical | SEC ↗ |