AMERICAN SECURITIES LLC
Broker-DealerCIK
1475483
Location
NEW YORK, NY
Portfolio Value
Mid
$3,930,257,794
Diversification
Highly concentrated
Filing Date
Global Rank
#782
/ 8,603
▲ 777
· as of Mar 2026
Top Industry
Utilities - Renewable
70.1%
3Y Alpha vs SPY
-7.3%
Period ended 3 months ago
Filed May 14, 2026 · 56d
21 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+46.5%
SPY
+76.0%
Annualised alpha
-7.1%
Max drawdown
−54.5%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
2 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
70.1%
−29.9 pts
Top 5
100.0%
0.0 pts
Top 10
100.0%
0.0 pts
HHI
5,810
Highly concentrated−4,190
Portfolio Trend
21 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Utilities | 70.1% | $2,755,960,337 |
| Industrials | 29.9% | $1,174,297,457 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increasedNo qualifying positions this quarter.
Trimmed
Positions the filer reducedNo qualifying positions this quarter.
New Positions
Positions the filer opened this quarter
1 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| MWH | SOLV Energy, Inc. | 91,773,571 | $2,755,960,337 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exitedNo qualifying positions this quarter.
2 positions ·
$3,930,257,794 total
· as of Mar 31, 2026
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| MWH |
SOLV Energy, Inc.
Utilities
|
NEW | 91,773,571 | $2,755,960,337 | 70.12% | |
| AMTM |
Amentum Holdings, Inc.
Industrials
|
Held | 45,026,743 | $1,174,297,457 | 29.88% |