EN
Engine No. 1 LLC Historical SEC 13F Holdings & Archive (Q3 2025)
Engine No. 1 LLCCIK: 0001835549
High-turnover traderConcentrated strategySector-focused
Total reported value
$88.6M
Reporting period: 2025-09-30 · Number of holdings: 6
ENGINE NO. 1 LLC disclosed 6 holdings in its latest 13F filing for the period ending 2025-09-30, with total reported value of $88.6M and a quarterly turnover rate of 198.2%.
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Personality snowflake
- Concentration
- 100
- Portfolio Stability
- 100
- Momentum
- 100
- Sector conviction
- 100
- Diversification
- 12
- Sizing Uniformity
- 91.34
Engine No. 1 LLC's disclosed holdings carry a Herfindahl concentration index of 0.271 — mathematically equivalent to about 4 equally-sized positions, close to its 6 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.87), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 3.8 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Sector classification currently covers about 39% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govAdd POWL
0.0% $24.0M
Sold out INTC
New buy VRT
New buy FSLR
New buy HRI
Sold out AR
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | POWL | Powell Industries Inc | Stock-Industrials | 40.95% | +25.29% | — | |
| 2 | VRT | Vertiv Holdings Co-a | Stock-Industrials | 27.25% | +27.25% | NEW | |
| 3 | FSLR | First Solar Inc | Stock-Tech | 11.95% | +11.95% | NEW | |
| 4 | HRI | Herc Holdings Inc | Stock-Other | 9.74% | +9.74% | NEW | |
| 5 | GLD | Spdr Gold Shares | ETF-Commodities | 5.26% | +5.26% | NEW | |
| 6 | HUBB | Hubbell Inc | Stock-Industrials | 4.86% | +4.86% | NEW |
Portfolio Performance
Performance for Q3 2026
-21.2%
Performance Last 4 Quarters
+54.2%
- Stdev
- +35.8%
- Beta
- +1.62
- Alpha
- -0.9%
- Max Drawdown
- -33.1%
- Annualized Perf
- +28.6%
- Batting Avg vs S&P
- +47.2%
- Sortino
- +1.63
- Stutzer
- +0.26
- Treynor
- +0.19
- Sterling
- +0.94
- Calmar
- +0.86
- Information Ratio
- +0.38
- Tracking Error
- +30.1%
- Stdev Down
- +19.3%
- Winning Months %
- +55.6%
- Losing Months %
- +44.4%
- Best 12 Months
- +141.4%
- Worst 12 Months
- -21.2%
- Efficiency Ratio
- +0.39
- Sharpe
- +0.88
- Stdev Sectors
- +19.5%
- Skewness
- +0.18
- Kurtosis
- +0.25
- Upside Potential
- +3.33
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2025 Q3 | 6 | $88.6M | 100 | ||
| 2025 Q2 | 4 | $55.1M | 0 | ||
| 2025 Q1 | 4 | $78.3M | 100 | ||
| 2024 Q4 | 5 | $37.6M | 0 | ||
| 2024 Q3 | 6 | $50.5M | 0 | ||
| 2024 Q2 | 11 | $95.3M | 0 | ||
| 2024 Q1 | 10 | $84.5M | 0 | ||
| 2023 Q4 | 7 | $54.8M | 0 | ||
| 2023 Q3 | 13 | $189.9M | 0 | ||
| 2023 Q2 | 16 | $213.2M | 0 | ||
| 2023 Q1 | 16 | $213.2M | 0 | ||
| 2022 Q4 | 12 | $203.3M | 0 | ||
| 2022 Q3 | 15 | $202.7M | 0 | ||
| 2022 Q2 | 15 | $226.9M | 0 | ||
| 2022 Q1 | 14 | $221.9M | 0 | ||
| 2021 Q4 | 307 | $483.7M | 0 | ||
| 2021 Q3 | 226 | $389.0M | 0 | ||
| 2021 Q2 | 144 | $363.3M | 55 | ||
| 2021 Q1 | 13 | $272.3M | 36 | ||
| 2020 Q4 | 12 | $231.9M | 0 |
* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.
Holding changes this quarter
Engine No. 1 LLC's most significant position changes for 2025-09-30: Sold out: Intel CORP (INTC); New buy: Vertiv Holdings Co-a (VRT); New buy: First Solar Inc (FSLR); New buy: Herc Holdings Inc (HRI); Sold out: Antero Resources CORP (AR).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | POWL | Powell Industries Inc | +25.3% | — | Add |
| 2 | INTC | Intel CORP | — | EXIT | Sold out |
| 3 | VRT | Vertiv Holdings Co-a | — | NEW | New buy |
| 4 | FSLR | First Solar Inc | — | NEW | New buy |
| 5 | HRI | Herc Holdings Inc | — | NEW | New buy |
| 6 | AR | Antero Resources CORP | — | EXIT | Sold out |
| 7 | ETN | Eaton Corporation plc | — | EXIT | Sold out |
| 8 | GLD | Spdr Gold Shares | — | NEW | New buy |
| 9 | HUBB | Hubbell Inc | — | NEW | New buy |
Filing History
FAQ
What is Engine No. 1 LLC and what type of investor is it?
Engine No. 1 LLC is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2025-09-30), the firm manages a tracked equity portfolio valued at approximately $88.6M, spread across 6 disclosed positions.
What are Engine No. 1 LLC's largest equity positions?
Based on the latest 13F filing, Engine No. 1 LLC's top holdings by market value are:
1. Powell Industries Inc (POWL) — $36.3M (41.0%)
2. Vertiv Holdings Co-a (VRT) — $24.1M (27.3%)
3. First Solar Inc (FSLR) — $10.6M (11.9%)
4. Herc Holdings Inc (HRI) — $8.6M (9.7%)
5. Spdr Gold Shares (GLD) — $4.7M (5.3%)
What changes did Engine No. 1 LLC make in its most recent portfolio filing?
In the latest reported quarter, Engine No. 1 LLC made 9 notable position adjustments: 5 new positions were initiated, 1 existing holdings were added to, 0 positions were partially reduced, and 3 were completely exited. The largest of these moves: Sold out: Intel CORP (INTC); New buy: Vertiv Holdings Co-a (VRT); New buy: First Solar Inc (FSLR); New buy: Herc Holdings Inc (HRI); Sold out: Antero Resources CORP (AR)
What sectors does Engine No. 1 LLC focus on?
Engine No. 1 LLC is concentrated in the following sectors based on its current disclosed equity portfolio:
• Industrials: 69.5%
• Information Technology: 30.5%
Investment Profile
Engine No. 1 LLC returned an annualized 28.6% over the trailing 36 months — underperforming the S&P 500 by 0.9 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.62 (more volatile than the market) and a 47% quarterly batting average against the index.
Its portfolio is concentrated and fast-trading, with 69.5% of the portfolio concentrated in Industrials.
Its turnover score has risen from 0 to 100 over the past 4 quarters — a shift toward more active trading.
It has added to its POWL position for two straight quarters, increasing it by $24.0M to reach $36.3M.
Peer Institutions
Institutions with a similar AUM
SW
Signify Wealth
CIK 0001769062
Total reported value
$88.6M
26 stks
2024-12-31
Stale — no recent filing
Concentration23.8
Portfolio Stability0.0
Sector conviction100.0
AUM within 0.0% of this institution
View detail
LC
Lightyear Capital LLC
CIK 0001632899
Total reported value
$88.6M
1 stks
2017-03-31
Stale — no recent filing
Concentration100.0
Portfolio Stability30.9
Sector conviction0.0
AUM within 0.1% of this institution
View detail
SH
Stone House Capital Management, LLC
CIK 0001589943
Total reported value
$88.5M
3 stks
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Concentration100.0
Portfolio Stability3.8
Sector conviction0.0
AUM within 0.1% of this institution
View detail
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Developer Access
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REST API
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