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AMERICAN SECURITIES LLC

Registered adviser
Location
NEW YORK, NY
Portfolio Value
Mid $3,754,142,431
Diversification
Highly concentrated
Filing Date
Global Rank
#1,067 / 8,814 ▼ 138
Top Industry
Utilities - Renewable 75.2%
3Y Alpha vs SPY
-8.6%
Period ended 4 months ago
Filed Aug 26, 2026 · 57d
22 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type
Registered adviser
Form ADV roster, Oct 1, 2026
Form ADV adviser
CRD 160648
Roster of Oct 1, 2026
Regulatory AUM
$18,905,167,343
Main clients
Pooled investment vehicles (100% of AUM)
Private funds
22 funds · Private equity funds
Focus by gross assets, Schedule D of Dec 3, 2024
$18,899,625,550 gross assets
Private funds on Schedule D 7.B.(1)
As filed Dec 3, 2024; SEC's bulk Form ADV archive ends with 2024 filings.
$21,195,777,457 gross assets in 18 funds Private equity funds $21,195,777,457 (18)
Form ADV history
Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.
Rosters Regulatory AUM Main clients
Apr 2026 to Oct 2026 $18,905,167,343 Pooled investment vehicles (100%)
Apr 2025 to Mar 2026 $20,320,084,908 Pooled investment vehicles (100%)
Apr 2024 to Mar 2025 $21,195,777,457 Pooled investment vehicles (100%)
Aug 2023 to Mar 2024 $22,334,422,179 Pooled investment vehicles (100%)
May 2023 to Jul 2023 $22,334,422,179 Pooled investment vehicles (100%)
Apr 2023 $22,334,422,179 Pooled investment vehicles (100%)
4 earlier changes not shown.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style
Unknown
2 stocks, under the 5 needed to band a style
Turnover
Low turnover
0.0% over the last four quarters (under 30%)
Horizon
Short horizon
Value-weighted holding period 3.2 quarters (under 4)

Closest benchmark: the S&P SmallCap 600 as of 2026-06-30, active share 99.8%; sector active share 87.9% against the combined 13F book's sector weights.

Over time 22 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

2 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
75.2%
+5.1 pts
Top 5
100.0%
0.0 pts
Top 10
100.0%
0.0 pts
HHI
6,271
Dec 2022 → Jun 2026 · range 5,810 – 10,000
Highly concentrated+461

Portfolio Trend

22 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Utilities 75.2% $2,823,439,654
Industrials 24.8% $930,702,777

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
No qualifying positions this quarter.

Trimmed

Positions the filer reduced
1 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
No qualifying positions this quarter.

Sold Out

Positions the filer fully exited
No qualifying positions this quarter.

Portfolio Positions

Export CSV View 13F filing
2 tracked positions · $3,754,142,431 total · filing declares 2 positions · $3,754,142,432 · as of Jun 30, 2026
Ticker Company Shares Value (USD) % of Portfolio History

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.